Apple Power Mac G5
The Power Mac G5 product line comes in three configurations:
1.6GHz, 1.8GHz and a dual 2GHz model.
They all feature the SuperDrive (DVD-R/CD-RW , that lets you burn both CDs and DVDs that can be played in most consumer DVD players) as standard equipment across the line.
And they come with two FireWire 400 ports, three PCI expansion slots, ADC connector, DVI connector, analog audio in, analog audio out, optical S/PDIF in, optical S/PDIF out, front headphone and speaker jack and built-in Gigabit Ethernet — all as standard equipment. All models are AirPort Extreme-ready, and offer Bluetooth capability as a build-to-order option.
The 64-bit PowerPC processor developed by Apple and IBM
enable the Power Mac G5 to break through the 4GB barrier and support up to 8GB of 400MHz, 128-bit DDR SDRAM , four times more than a typical PC. More main memory and fast 6.4 GBps throughput means you can write large projects to memory 40x faster than to a hard disk.
The Power Mac G5 would run your software (and faster) with a version of Mac OS X Jaguar specially tuned for the PowerPC G5 processor, providing a seamless transition to 64-bit power.
And also available (end of 2003)
Apple Mac OS X “Panther”
At the WWDC 2003 (June), San Francisco — Apple previewed Mac OS X version 10.3 “Panther,” the next major version of Mac OS X that will ship by the end of this year. The fourth major release of Mac OS X in four years, Panther sets a new gold standard for desktop operating systems with more than 100 breakthrough new features including a completely new Finder ; a revolutionary new way to instantly see all your open windows at once; and iChat AV, a complete desktop video conferencing solution for business, education and consumers.
Steve Jobs (Apple’s CEO) said:
“With Jaguar, we moved ahead of the competition. With Panther, we’re widening the gap. With over 100 new features, including some real blockbusters, Apple is again the industry innovator in operating systems.”
Optical digital audio
The Power Mac G5 comes with audio capabilities that are not usually found on personal computers. The optical digital audio in and out ports use the S/PDIF (Sony/Philips Digital Interface) protocol over Toslink cables for connecting to devices such as decks, receivers, digital instruments, and even 5.1 surround-sound speaker systems.
Audio digital signal processing (DSP):
PCI-X expansion slots
Models start at $1999
A partire da euro 2.278,80.
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The Power Mac G5 64-bit processor breaks the 4 gigabyte barrier and can use up to 8 gigabytes of main memory. G5 is available at speeds up to dual 2GHz with a new ultrahigh-bandwidth system architecture featuring AGP 8X and PCI-X.
The PowerPC G5 processor accelerates performance in real world applications, too. When compared head-to-head against the same PCs, in a large series of Photoshop tests the dual 2GHz Power Mac G5 is 2.2 times faster than the 3GHz Pentium 4-based system and almost twice as fast as the dual 3.06GHz Xeon-based system. Additional performance tests reveal similar performance gains for professional music and audio creation.
The Power Mac G5 comes with three PCI-X slots, giving you the benefit of the advanced PCI technology. The PCI-X protocol is perfect for high-performance PCI devices, increasing speeds from 33MHz to 133MHz and throughput from 266MBps to 2GBps.
High-speed AGP 8X Pro graphics bus
Compared with the AGP 4X interface, the Power Mac G5’s AGP 8X Pro graphics bus doubles the maximum transfer rate and doubles the amount of data transferred in a single AGP bus cycle. The 66MHz AGP 8X Pro bus strobes eight times per clock cycle, achieving a 533MHz data rate and a maximum bandwidth of 2.1GB per second — ideal for the ultrafast graphics cards it ships with, like the ATI Radeon 9800 Pro or NVIDIA GeForce FX 5200 Ultra.
FireWire 800, USB 2.0 and high-performance I/O
The Power Mac G5 ships with a FireWire 800 port and three USB 2.0 ports (plus two USB 1.1 ports on the keyboard). Gigabit Ethernet, FireWire, USB 2.0 and optical digital and analog audio are all integrated through two bidirectional 16-bit, 800MHz HyperTransport interconnects for a maximum throughput of 3.2GB per second.
PROCESSOR
The 64-bit G5 speeds up to 2GHz and can address 8GB main memory.
The 32-bit PCs can only use 4GB of memory. Any more than that requires the use of virtual memory on the hard drive, which is 40 times slower than using RAM. The new Power Mac G5 can offer up to 8GB of RAM thanks to the 64-bit G5. So you can store your works all in main memory, which lets you manipulate them 40 times faster. Theoretically, the 64-bit data paths let the Power PC G5 access up to 4 terabytes of physical memory. Impractical now , but the Power PC G5 architecture allows for plenty of growth well into the future.
And to get at that data, the PowerPC G5 features a 1GHz frontside bus for each processor, offering a staggering 16 GBps throughput on dual PowerPC G5 systems (Mac G4 has a bus speed of 167MHz).
The G5’s execution core is derived from IBM’s POWER4 processor: two double-precision floating-point units, advanced branch prediction logic and a high-bandwidth frontside bus. To that superscalar, superpipelined execution core, Apple and IBM added the Velocity Engine to the design, so software that optimizes vector math routines will run on the Power Mac G5 without needing new versions.
The G5 features a scalable design that enables it to run at clock speeds up to 2GHz. This represents a 600MHz jump, the largest in PowerPC history, over the fastest G4 processor at 1.4GHz. But all the megahertz in the world wouldn’t mean squat if the G5 were stuck talking to the rest of the machine at the 167Mhz bus speed of the Power Mac G4. That’swhy the G5 features two unidirectional 32-bit data paths: one traveling into the processor and one traveling from the processor, unlike previous designs. Its frontside bus works at speeds up to 1GHz for an astounding 8 GBps of total bandwidth. That makes it 200MHz faster than even the latest Intel 875 chipset, which sputters out at 800MHz.
Dual systems
Both Mac OS X and the G5 fully support symmetric multiprocessing, which lets multiple applications run independently on different processors or a single multithreaded application perform multiple tasks simultaneously. To ensure maximum efficiency on dual 2.0GHz G5 systems, each processor has its own dedicated 1GHz frontside bus. The resulting bandwidth of 16 GBps offers more than twice the 6.4-GBps maximum throughput of Pentium 4-based systems. In addition to providing fast access to main memory, this high-performance frontside bus architecture lets each G5 discover and access data in the other processor’s cache.
The PowerPC architecture was designed from the get-go for both 32- and 64-bit processing. That means the Power Mac G5 can run everything you run today, with no performance penalty. Contrast that with the competition, where switching to 64-bit computing will mean costly expenditures for 64-bit software or running a 32-bit operating system in a slow emulation mode. That’s right, current 32-bit Mac OS programs ,including Mac OS X itself, the Classic environment and existing applications, run natively at processor speed, with no interruptions to your workflow and no additional investment in software. In fact, Mac OS X applications that take advantage of the PowerPC G4 Velocity Engine will immediately run faster on the G5. Of course, Mac OS X applications tuned for the G5 will run even faster.
EXECUSION CORE
The design was derived from IBM’s 64-bit POWER4 processor with two double-precision floating-point units, advanced branch prediction logic and a high-bandwidth frontside bus. To that execution core, Apple and IBM added the Velocity Engine to the, design, so that every Mac OS X application would run efficiently. Additionally, the PowerPC G5 features, processing innovations that optimize the flow of, data and instructions , meaning the PowerPC G5, can pump through more than 200 in-flight, instructions at a time, a whopping 71% more than,the 32-bit Pentium 4.
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L2Cache: 512K of L2 cache provide the execution core with ultrafast 64-MBps access to data and instructions.
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L1 Cache: Instructions are prefetched from the L2 cache into a large, direct-mapped 64K L1 cache at 64 GBps. In addition, 32K of L1 data cache can prefetch up to eight active data streams simultaneously.
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Fetch and Decode:As they are accessed from the L1 cache, up to eight instructions per clock cycle are fetched, decoded and divided into smaller, easier-to-schedule operations. This preparation maximizes processing speed as instructions are dispatched into the execution core and data is loaded into the large number of registers behind the functional units.
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Dispatch; Before instructions are dispatched into the functional units, they are arranged into groups of up to five. Within the core alone, the PowerPC G5 can track up to 20 groups at a time, or 100 individual instructions. This efficient group-tracking scheme enables the PowerPC G5 to manage an unusually large number of instructions “in flight”: 20 instructions in each of the five dispatch groupsand an additional 100-plus instructions in the various fetch, decode and queue stages.
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Queue: Once an instruction group is dispatched into the execution core, it is broken into individual instructions, which proceed to the appropriate functional unit. Each functional unit has its own dedicated queue, where multiple instructions are arranged for processing in whatever order is required.
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Optimized Velocity Engine: The PowerPC G5 uses an optimized dual-pipelined Velocity Engine with two independent queues and dedicated 128-bit registers and data paths for efficient instruction and data flow. This vector processing unit accelerates data manipulation by applying a single instruction to multiple data at the same time, known as SIMD processing. The Velocity Engine in the PowerPC G5 uses the same set of 162 instructions as in the PowerPC G4, so it can run (and accelerate) existing Mac OS X applications already optimized for the Velocity Engine.
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Two Double-Precision Floating-Point Units: Two double-precision floating-point units provide the precision required for highly complex scientific computations. Although 32-bit processors are able to execute double-precision 64-bit calculations by cycling through the floating-point math unit multiple times, a double-precision math unit on a 64-bit processor can complete the same calculation in a single clock cycle. Two double-precision floating-point units let the G5 complete at least two 64-bit mathematical calculations per clock cycle. This dramatically accelerates highly complex computations critical in genome-matching applications and in many of the filters used to manipulate or render 3D graphics and video content.
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Two Integer Units: Integer units perform simple integer mathematics — such as add, subtract and compare — which are commonly used in many basic computer functions, as well as in imaging, video and audio applications. The PowerPC G5 has two integer units capable of a broad range of simple and complex instructions involving both 32-bit or 64-bitcalculations. What’s more, they take full advantage of the processor’s 64-bit registers and data paths to complete 64-bit integer calculations in a single pass.
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Load/Store:At the same time as instructions are queued, the load/store units load the associated data from L1 cache into the data registers behind the units that will be processing the data. After the instructions manipulate the data, these units store it back to L1 cache, L2 cache or main memory. Each functional unit is generously equipped with 32 registers that are 128-bit wide on the Velocity Engine and 64-bit wide on the floating-point units and the integer units. With two load/store units, the PowerPC G5 is able to keep these registers filled with data for maximum processing efficiency.
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Condition Register: This special 32-bit register summarizes the states of the floating-point and integer units.The condition register also indicates the results of comparison operations and provides a means for testing them as branch conditions. By bridging information between the branch unit and other functional units, the condition register improves the flow of data throughout the execution core.
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Three Component Branch Prediction Logic: The PowerPC G5 usually knows the answer before it asks the question, using branch prediction and speculative operation to increase efficiency. Like finishing someone else’s sentences, branch prediction anticipates which instruction should go next, and speculative operation causes that instruction to be executed. If the prediction is correct, the processor works more efficiently , since the speculative operation has executed an instruction before it’s required, as with a conversation that seems to be a mind meld. If the prediction is incorrect, the processor must clear the unneeded instruction and associated data, resulting in an empty space called a pipeline bubble. Pipeline bubbles reduce performance as the processor marks time waiting for the next instruction, not unlike wasting time hearing how very wrong your assumptions were. The G5 can predict branch processes with an accuracy of up to 95%, allowing the chip to efficiently use every processing cycle.
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When operations on the data are complete, the PowerPC G5 recombines the instructions into the original groups of five and the load/store units store the data in cache or main memory for further processing.
ARCHITECTURE
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Frontside bus up to 1GHz
1GHz, 64-bit bidirectional Double Data Rate (DDR) frontside bus maximizes throughput between the processor and the system controller. And unlike most processor interfaces, which can carry data in only one direction at a time and waste precious time changing directions, the PowerPC G5 features two high-speed unidirectional 32-bit data paths , one flowing continuously into the processor and one flowing from the processor. This lets your data move in opposite directions simultaneously, with no other demands on the data stream and no wait time while the processor and system controller compete for use of the bus; the data streams integrate clock signals along with the data, allowing the frontside bus to work at speeds of up to 1GHz for a 8GB per second of aggregate bandwidth.
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Dual independent 1GHz frontside buses
Naturally, dual processor systems get an even bigger performance boost. Each PowerPC G5 processor has its own dedicated 1GHz bidirectional interface to the system controller for a mind-boggling 16GB per second of total bandwidth (more than twice the 6.4-GBps maximum bandwidth of Pentium 4-based systems using the latest PC architecture). In addition to providing fast access to main memory, this high-performance frontside bus architecture enables each PowerPC G5 processor to discover and access data in the other processor’s L1 and L2 caches for ultrafast performance.
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AGP 8X Pro graphics bus
The Power Mac G5 sports the latest graphics interface, AGP 8X Pro, for next-generation 3D graphics. And “Pro” means you get up to 70 watts of power for industrial-strength graphics. The new specification doubles maximum transfer rates, and doubles the amount of data transferred in a single AGP bus cycle. The 66MHz AGP 8X Pro bus strobes eight times per clock cycle, resulting in a 533MHz data rate and blistering bandwidth of 2.1GB per second.
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Advanced PowerPC G5 System Controller
Central to the overall performance of the PowerPC G5 is a new system controller. This Application Specific Integrated Circuit (ASIC) is built using the same 130-nanometer process technology as the PowerPC G5 processor itself. A point-to-point architecture provides each primary subsystem with dedicated throughput to main memory, neatly avoiding time-consuming contention for bandwidth (unlike subsystems that share a bus and are compelled to constantly negotiate for access and bandwidth across a common data path).
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400MHz dual-channel memory
The new Power Mac G5’s memory controller supports fast 400MHz, 128-bit DDR SDRAM,
and a dual-channel interface enables main memory to address two banks of SDRAM at a time, reading
and writing on both the rising and falling edge of each clock cycle. This effectively doubles the bandwidth, enabling the Power Mac G5 to reach a maximum memory throughput of up to 6.4GB per second — an advance that’s especially welcome when you’re working with enormous files. In addition,
direct memory access (DMA) works with the point-to-point system controller to give each subsystem (such as PCI cards and graphics processing units) its own 6.4-GBps interface to main memory, without siphoning power from yourprocessors.
Thanks to the 64-bit PowerPC G5 processor, the Power Mac G5 can address more memory than most
other desktop PCs. The dual processor system has eight DIMM slots, and can hold up to 8GB of memory , enough to process huge data sets and rich media files right out of system RAM, without the delay of having to access the disk drive.
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133MHz PCI-X expansion
The Power Mac G5 features PCI-X, the new advance in PCI technology. The PCI-X protocol increases the PCI bus speed from 33MHz to 133MHz, and the throughput from 266MBps to a combined total of 2GBps. PCI-X also operates more efficiently, giving you more usable bandwidth at any clock frequency, ideal for HD video and other high-bandwidth applications.
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High-performance I/O
The HyperTransport protocol integrates the Power Mac G5’s I/O subsystems and connects them to the system controller. Serial ATA, Gigabit Ethernet, FireWire, USB 2.0 and optical digital and analog audio are all integrated through two bidirectional 16-bit, 800MHz HyperTransport interconnects for a maximum throughput of 3.2GB per second.
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Serial ATA storage The Power Mac G5 can hold two internal Serial ATA drives that support 1.5-Gbps throughput per channel (equivalent to a 150 MBps data rate). Designed to meet the demands of digital video editing, 3D modeling and other data-intensive applications, Serial ATA is the next-generation industry-standard storage interface that replaces the typical (a.k.a. Parallel) ATA interface. Since each Serial ATA drive is on an independent bus, there’s no competition for bandwidth as with Parallel ATA.
EXPANSIONS
A removable side door gives you access to the slots and bays of the Power Mac G5, so you can add more memory, a second hard drive or an AirPort Extreme Card quickly and easily , no tools required.
Internal Storage
The Power Mac G5 has two Serial ATA hard drive bays for up to 500GB of fast internal mass storage (ideal for video, audio and high-resolution graphics). Built-in software RAID allows you to stripe the two drives for increased performance or mirror them for high reliability. And it’s easy to add storage as your needs grow. Single-drive systems come with the cabling to connect a second hard drive, and the easy-to-open side panel lets you insert a new drive yourself. Want massive system storage? Just use a Fibre Channel PCI card to connect to Xserve RAID, Apple’s high-performance storage system.
Up to 8GB of 400MHz DDR SDRAM
The Power Mac G5 comes with four or eight DIMM slots that use ultrafast PC2700 or PC3200 DDR SDRAM. This high-speed memory operates at up to 400MHz for up to 6.4 GBps throughput. Standard configurations come with 256MB or 512MB of RAM. And since memory is scalable up to 8GB, you can add RAM as your application and workflow requirements increase.
PCI-X expansion slots
PCI and PCI-X cards enable the Power Mac G5 to perform specialized tasks, such as video acceleration and audio digital signal processing (DSP). PCI-X supports 3.3V signaling and Universal 33MHz and 66MHz PCI cards. Your built-to-order Power Mac G5 system can be configured with PCI or PCI-X expansion technology. Three 64-bit PCI-X slots let you add one card running at 133MHz and two cards running at 100MHz. Three 32-bit PCI slots allow you to add three 33MHz cards.
FireWire and USB 2.0
All Power Mac G5 systems have one FireWire 400 port on the front and one on the back of the enclosure , as well as a next-generation FireWire 800 port on the back, for connecting to high-bandwidth devices such as DV cameras, hard drives, and digital music players. You also get two USB 1.1 ports on the keyboard and three USB 2.0 ports (one on the front and two on the back) for connecting to printers, scanners, graphics tablets, keyboards, microphones, speakers, joysticks and other industry-standard input and output devices.
Optical digital audio
The Power Mac G5 comes with audio capabilities that are not usually found on personal computers. The optical digital audio in and out ports use the S/PDIF (Sony/Philips Digital Interface) protocol over Toslink cables for connecting to devices such as decks, receivers, digital instruments, and even 5.1 surround-sound speaker systems.
Plugged in
It’s easy to plug printers, scanners and other devices into the Power Mac G5. In addition to sporting a full complement of ports on the back, the front panel has FireWire 400 and USB 2.0 ports, as well as a headphone and speaker minijack.
Gigabit Ethernet
Gigabit (10/100/1000BASE-T) Ethernet is built into every Power Mac G5, and the autosensing port makes it simple to connect to the network.
Go wireless
Wireless networking is equally simple using the optional 54-Mbps AirPort Extreme Card and AirPort Extreme Base Station. The optional Bluetooth module andantenna allow you to connect wirelessly to a range of digital devices like cell phones, PDAs and printers.
Analog Audio
The Power Mac G5 also features analog stereo audio line in and line out ports, and a handily-positioned minijack on the front panel makes it easy to plug in your headphones.
GRAPHICS
The AGP 8X Pro graphics interface doubles the maximum transfer rate, and doubles the amount of data transferred in a single AGP bus cycle , and gives the new GPUs from ATI and NVIDIA the bandwidth they need to deliver cinematic-quality 3D graphics.
The 66MHz AGP 8X Pro bus strobes eight times per clock cycle, giving you a 533MHz data rate and a maximum bandwidth of 2.1GBps. This enhanced performance drives graphics-intensive applications to high resolutions, with texturing for the most immersive visual experience.
Standard configurations of the Power Mac G5 come with the NVIDIA GeForce FX 5200 Ultra or the ATI Radeon 9600 Pro, both with 64MB of video SDRAM.
The GeForce FX 5200 Ultra features the CineFX engine and NVIDIA’s advanced Lightspeed Memory Architecture II for photorealistic 3D graphics in games and visualization applications. The Radeon 9600 Pro visibly upgrades graphics performance with a quad-pipe architecture, SmartShader 2.0 technology and HyperZ III+ memory architecture to push the performance envelope in high-end design applications.
Optional the ATI Radeon 9800 Pro, an AGP Pro card and the fast an advanced 3D graphics acceleratort.
The industry’s only cinematic Visual Processing Unit (VPU), the ATI Radeon 9800 Pro’s turbocharged 256-bit DDR memory interface and 8-pixel pipeline combine to deliver production studio-caliber graphics — in real-time. Perfect for intensive 3D modeling tasks and for intensive next-generation games.
Dual-display support
The Power Mac G5 comes with an Apple Display Connector (ADC) port for connecting an Apple display, and a DVI port for a second digital display , with support for both extended desktop and video mirroring modes. Connect to a second display with VGA or ADC An Apple DVI to VGA adapter is included for connecting to common VGA displays, such as CRTs or projectors.
The optional Apple DVI to ADC Adapter enables you to connect your Power Mac to two Appledisplays (including two 23-inch Apple Cinema HD Displays for 3840-by-1200-pixel resolution).
Connect with S-video and RCA (composite) connectors
You can also order a new adapter designe specifically for the Power Mac G5, the Apple DVI to Video Adapter. This new connector works only with the DVI port on each of the graphics cards designed for the Power Mac G5. It allows you to preview your work by connecting to S-video and composite devices, like TVs, VCRs and overhead projectors , with S-video or RCA (composite) connectors.
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Il nuovo processore PowerPC G5 a 64 bit e' stato viluppato in collaborazione Apple/ IBM
Tre modelli
La linea di prodotti Power Mac G5 è composta da tre configurazioni, a 1,6GHz, 1,8GHz e dual a 2GHz. Su tutti troverete l' unità SuperDrive (DVD-R/CD-RW). Ma anche due porte FireWire 400, tre slot di espansione PCI, connettore ADC, connettore DVI, ingresso e uscita audio analogici, ingresso e uscita S/PDIF ottici, jack frontale per cuffie e altoparlanti e Gigabit Ethernet integrata, standard su tutti i modelli. Tutte le configurazioni sono predisposte per AirPort Extreme e offrono le funzionalità Bluetooth come opzione BTO (Build-to-Order).
Power Mac G5 è il primo con processore a 64 bit, che gli consente di superare la barriera dei 4 gigabyte e di utilizzare fino a 8 gigabyte di memoria principale SDRAM DDR a 400MHz e 128 bit, quattro volte superiore rispetto a un comune PC.. Il nuovo processore G5, disponibile a velocita' fino a 2GHz per il modello dual, è dotato di una nuova architettura di sistema a larghezza di banda ultraelevata, arricchita da AGP 8X .
Una quantità maggiore di memoria principale e un veloce throughput a 6,4GBps significano poter scrivere progetti di più elevate dimensioni sulla memoria 40 volte più velocemente che su un disco rigido.
L'rchitettura di sistema a larghezza di banda ultraelevata di Power Mac G5 presenta un bus frontside a 1GHz (uno su ogni processore) per massimizzare il throughput. Il controller di sistema point-to-point consente ai dati di spostarsi direttamente tra sottosistemi, senza compromettere la funzionalità del processore.
Espansione PCI-X
Power Mac G5 è dotato di tre slot PCI-X, che vi permetteranno di sfruttare le più recenti innovazioni della tecnologia PCI. Il protocollo PCI-X aumenta la velocità da 33MHz a 133MHz e il throughput da 266MBps a 2GBps.
Bus grafico AGP 8X Pro ad alta velocità
Rispetto all'interfaccia AGP 4X, il bus grafico AGP 8X Pro di Power Mac G5 raddoppia la massima velocità di trasferimento e la quantità di dati trasferiti in un singolo ciclo del bus AGP. Il bus AGP 8X Pro a 66MHz invia strobe otto volte per ciclo di clock, ottenendo un data rate di 533MHz e un'ampiezza di banda massima di 2,1GB al secondo, perfetto per le veloci schede grafiche con cui viene fornito Power Mac G5, come ATI Radeon 9800 Pro o NVIDIA GeForce FX 5200 Ultra.
FireWire 800, USB 2.0 e I/O a elevate prestazioni
Power Mac G5 presenta una porta FireWire 800 e tre USB 2.0 (oltre a due porte USB 1.1 sulla tastiera). Gigabit Ethernet, FireWire, USB 2.0 e audio analogico e digitale ottico sono tutti integrati tramite due collegamenti HyperTransport a 16 bit e 800MHz bidirezionali, per un throughput massimo di 3,2GB al secondo.
SuperDrive a 4x
Tutti i sistemi Power Mac G5 sono dotati di unità SuperDrive (DVD-R/CD-RW), che vi consente di masterizzare CD e DVD riproducibili su gran parte dei lettori DVD consumer. SuperDrive legge DVD a 8x e scrive DVD-R da 4,7 gigabyte a 4x.
Mac OS X
Power Mac G5 dovrebbe gestire tutti i softwares che gia' possedete più velocemente di prima, con una versione di Mac OS X v10.2 appositamente progettata per il processore PowerPC G5, in grado di offrire una transizione alla potenza a 64 bit.
PROCESSORE
Il processore G5 a 64 bit raggiunge una velocità di 2GHz ed è in grado di indirizzare 8GB di memoria principale superando tetto dei 4GB dei PC a 32 bit che possono utilizzare solo 4GB di memoria. Oltre i 4GB, è necessario utilizzare la memoria virtuale sul disco rigido, il che comporta una velocità 40 volte inferiore rispetto a quella raggiunta con l'utilizzo della RAM. Grazie al processore G5 a 64 bit, il nuovo Power Mac G5 è in grado di offrire fino a 8GB di RAM; di conseguenza, è possibile archiviare tuttonella memoria principale, che assicura la capacità di gestire e modificare il materiale più velocemente. In teoria, il processore G5 è in grado di indirizzare fino a 18 miliardi di milioni di byte di memoria virtuale ovvero, 18 exabyte. In pratica, tuttavia, PowerPC G5 ha 42 bit di spazio di indirizzamento per la memoria e, quindi, supporta solo 242 o 4 terabyte di memoria di sistema.
I percorsi dei dati a 64 bit consentono al processore Power PC G5 di accedere a un massimo di 4 terabyte di memoria fisica . Al momento, una situazione di questo tipo può ancora essere solo ipotetica, ma l'architettura di Power PC G5 offre un ampio potenziale di espansione per il futuro.
Per l'accesso a una tale quantità di dati, PowerPC G5 integra un bus frontside da 1GHz leader di settore per ogni processore, in grado di offrire un throughput di 16GB al secondo sui sistemi PowerPC G5 a doppio processore. Un progresso rispetto all'odierno Power Mac G4, con una velocità del bus pari a 167MHz. Il risultato? Nessun collo di bottiglia nell'invio dei dati al chip per l'elaborazione.
PowerPC G5 trae la propria intelligenza dal core di esecuzione del processore POWER4 a 64 bit di IBM che è il motore dei server eBusiness IBM, con un'eccezionale capacità di elaborazione in parallelo, due unità di calcolo in virgola mobile a doppia precisione e un'avanzata logica di Branch Prediction.Apple ha collaborato con IBM per sfruttare questo design leader di settore per creare il chip G5, abbinando un'unità Velocity Engine ottimizzata a un core di esecuzione superscalabile in grado di eseguire simultaneamente oltre 200 istruzioni. Tuttavia, non sarà necessario acquistare nuovo software per sfruttare la velocità supersonica di Power Mac G5; infatti, Apple e IBM hanno sviluppato l'architettura PowerPC in modo da consentire fin dall'inizio il passaggio da 32 bit a 64 bit.
Il processore G5 presenta un design scalabile che gli consente di raggiungere velocità di clock fino a 2GHz. Ciò rappresenta un balzo in avanti di 600MHz, rispetto al processore G4 più veloce a 1,4GHz. Tuttavia, tutti i megahertz del mondo non significherebbero nulla seil processore G5 dovesse continuare a comunicare con il resto del sistema alla velocità di 167MHz del bus di Power Mac G4. Ecco perché, a differenza dei design precedenti, il processore G5 offre due percorsi di dati a 32 bit unidirezionali: uno per il trasferimento al processore e uno per il trasferimento dal processore. Il bus frontside lavora a velocità fino a 1GHz per una stupefacente ampiezza di banda di 8GB al secondo. Ciò lo rende di 200MHz più veloce persino del chipset 875 Intel, che offre una velocità massima di 800MHz .
Doppi bus indipendenti per i sistemi dual
Sia Mac OS X che il processore G5 supportano il multiprocessing simmetrico, che consente l'esecuzione indipendente di più applicazioni su processori differenti o l'esecuzione simultanea di più task da parte di una singola applicazione in multithreading. Per assicurare la massima efficienza nei sistemi a doppio processore G5 da 2,0GHz, ogni processore ha un bus frontside da 1GHz dedicato. L'ampiezza di banda risultante pari a 16GB al secondo offre più del doppio del throughput massimo di 6,4GB al secondo dei sistemi basati su Pentium 4. Oltre ad assicurare un accesso veloce alla memoria principale, questa architettura di bus frontside ad alte prestazioni consente a ogni processore G5 di individuare e accedere ai dati nella cache dell'altro processore.
L'architettura PowerPC è stata progettata fin dall'inizio sia per l'elaborazione a 32 bit che per quella a 64 bit. Ciò significa che Power Mac G5 è in grado di eseguire tutto quello che utilizzate oggi. Gli attuali software per Mac OS a 32 bit, come lo stesso Mac OS X, l'ambiente Classic e le applicazioni esistenti, vengono eseguiti in modalità nativa alla velocità del processore, senza comportare interruzioni nel flusso di lavoro o investimenti aggiuntivi in software. In effetti, le applicazioni per Mac OS X che sfruttano Velocity Engine di PowerPC G4 verranno immediatamente eseguite a velocità maggiore sul processore G5. E, ovviamente, le applicazioni per Mac OS X concepite per il chip G5 saranno ancora più veloci.
ARCHITETTURA
La nuova architettura di sistema di Power Mac G5 è stata progettata per eliminare gli ingorghi nel percorso dei dati. Questa nuova architettura di sistema fornisce un throughput eccellente per l'esecuzione dei task più impegnativi in materia di editing di immagini, rendering ecc., senza i classici modelli di traffico a singhiozzo che possono intasare anche i processori più veloci.
Bus frontside fino a 1GHz
Progettato per sfruttare la potenza del processore PowerPC G5, il bus DDR (Double Data Rate) frontside bidirezionale a 1GHz e 64 bit massimizza il throughput tra il processore e il controller di sistema. E a differenza della maggior parte dei processori, che sono in grado di trasferire i dati soltanto in una direzione alla volta e sprecano tempo prezioso passando da una direzione all'altra, PowerPC G5 vanta due percorsi dei dati unidirezionali a 32 bit e ad alta velocità, uno che scorre costantemente verso il processore e l'altro in senso contrario. In questo modo, i vostri dati potranno spostarsi in direzioni opposte simultaneamente, senza compromettere il flusso dei dati e richiedere tempi d'attesa mentre il processore e il controller di sistema si contendono l'utilizzo del bus. Inoltre, i flussi dei dati integrano i clock con i dati stessi, consentendo al bus frontside di operare a velocità fino a 1GHz, per una stupefacente ampiezza di banda pari a 8GB al secondo.
Dual System
I sistemi con doppio processore offrono prestazioni ulteriormente migliorate. Ciascun chip PowerPC G5 dispone della propria interfaccia bidirezionale dedicata a 1GHz al controller di sistema, garantendo una sorprendente larghezza di banda complessiva di 16GB al secondo, oltre il doppio dell'ampiezza di banda massima di 6,4GBps dei sistemi basati su Pentium 4, utilizzando la più recente architettura PC. Oltre a fornire accesso veloce alla memoria principale, l'architettura dei bus frontside consente a ciascun processore PowerPC G5 di scoprire e accedere ai dati presenti nelle cache L1 e L2 dell'altro chip, per raggiungere prestazioni ultraveloci.
Bus grafico AGP 8X Pro
Power Mac G5 ha la nuova interfaccia AGP 8X Pro. Potrete disporre fino a 70 watt di potenza. Raddoppiata la velocità di trasferimento massima e la quantità di dati trasferiti in ogni singolo ciclo del bus AGP. Il bus AGP 8X Pro a 66MHz invia strobe otto volte per ciclo di clock, offrendo così un data rate di 533MHz e una ampiezza di banda pari a 2,1GB al secondo.
Memoria a doppio canale a 400MHz
Il nuovo controller della memoria di Power Mac G5 supporta la veloce SDRAM DDR a 400MHz e 128 bit, mentre l'interfaccia a doppio canale consente alla memoria principale di interrogare due banchi di SDRAM alla volta, leggendo e scrivendo sia sul fronte ascendente del ciclo di clock sia su quello discendente. In questo modo. la larghezza di banda risulta effettivamente raddoppiata, consentendo a Power Mac G5 di raggiungere un throughput di memoria massimo pari a 6,4GB al secondo, un vantaggio particolarmente gradito quando si lavora con documenti di grandi dimensioni. Inoltre, il DMA (Direct Memory Access Accesso diretto alla memoria) opera con il controller di sistema point-to-point per fornire a ogni sottosistema, come le schede PCI e le unità di elaborazione grafica, la propria interfaccia a 6,4GBps alla memoria principale, senza rubarepotenza ai vostri processori.
Grazie al processore PowerPC G5 a 64 bit, PowerMac G5 è in grado di interrogare più memoria della maggior parte degli altri PC desktop. I sistemi con doppio processore sono dotati di otto slot DIMM e possono ospitare fino a 8GB di memoria, sufficiente per elaborare grandi quantità di dati e documenti rich-media direttamente dalla RAM del sistema, senza dover perdere tempo ad accedere al disco rigido.
Espansione PCI-X a 133MHz
Power Mac G5 si avvale del protocollo PCI-X, l'ultimissima innovazione della tecnologia PCI.
PCI-X opera più efficacemente, regalandovi maggior ampiezza di banda utilizzabile a qualsiasi frequenza di clock, ideale per video HD e altre applicazioni a banda larga.
I/O ad alte prestazioni
Il protocollo HyperTransport integra i sottosistemi di I/O di Power Mac G5 e li collega al controller di sistema. Serial ATA, Gigabit Ethernet, FireWire, USB 2.0 e audio digitale e analogico ottico sono tutti integrati tramite due collegamenti HyperTransport a 16 bit e 800MHz bidirezionali, per un throughput massimo di 3,2GB al secondo.
Archiviazione Serial ATA Power Mac G5 può ospitare due unità Serial ATA interne che supportano un throughput pari a 1,5GBps per canale (equivalenti a un data rate di 150MBps). Progettata per soddisfare qualsiasi esigenza in materia di editing video digitale, modelling 3D e altre applicazioni che prevedono l'elaborazione di una grande quantità di dati, Serial ATA è l'interfaccia standard di settore di prossima generazione che sostituisce la tipica interfaccia ATA (chiamata anche Parallel). Poiché ciascuna unità Serial ATA si trova su un bus indipendente, non vi è competizione per la larghezza di banda come con Parallel ATA.
ESPANSIONI
Grazie al pannello laterale rimovibile si puo' accedere agli slot e agli alloggiamenti di Power Mac G5 per aggiungere memoria, un secondo disco rigido o una Scheda AirPort Extreme velocemente e facilmente, senza l'ausilio di utensili.
Archiviazione interna
Power Mac G5 è dotato di due alloggiamenti per dischi rigidi Serial ATA, per poter ospitare fino a 500GB di veloce archiviazione interna, ideale per video, audio e grafica ad alta risoluzione. Il software RAID integrato vi consente di usare i due dischi rigidi in configurazione Stripe, per ottenere migliori prestazioni, oppure Mirror, per garantire elevati livelli di affidabilità. E aggiungere memoria man mano che serve è semplicissimo. I sistemi con un solo disco rigido vengono forniti completi dei cavi necessari per collegare una seconda unità. Volete disporre di capacità di archiviazione esagerate? Allora usate la scheda Fibre Channel PCI per collegare Xserve RAID, il sistema di archiviazione Apple ad altre prestazioni.
Fino a 8GB di SDRAM DDR a 400MHz
Power Mac G5 è disponibile con quattro o otto slot DIMM che utilizzano memoria SDRAM DDR PC2700 o PC3200 ultraveloce. Questa memoria ad alta velocità raggiunge i 400MHz con throughput fino a 6,4GBps. Le configurazioni standard includono 256MB o 512MB di RAM. E poiché la memoria è scalabile fino a 8GB, potete aggiungere RAM man mano che le sigenze di applicazione aumentano.
Slot di espansione PCI-X
Grazie alle schede PCI e PCI-X, Power Mac G5 è in grado di eseguire task speciali, come accelerazione video e elaborazione del segnale audio digitale (DSP). PCI-X supporta la trasmissione dei segnali a 3,3V e schede Universal a 33MHz e PCI a 66MHz. I sistemi Power Mac G5 con configurazione BTO (Built-to-Order) possono includere tecnologia di espansione PCI o PCI-X. Gli slot PCI-X a 64 bit vi consentono di aggiungere una scheda a 133MHz e due schede a 100MHz. E grazie ai tre slot PCI a 32 bit, potrete avvalervi di altrettante schede a 33MHz.
FireWire e USB 2.0
Tutti i sistemi Power Mac G5 sono dotati di due porte FireWire 400, una sul lato frontale e una sul lato posteriore del case, nonché di una porta FireWire 800 di prossima generazione sul retro del case, per collegare dispositivi a banda larga, come ad esempio videocamere DV, dischi rigidi e lettori di musica digitale. Due porte USB 1.1 sono presenti sulla tastiera e tre porte USB 2.0, una frontale e due posteriori, che consentono di collegare stampanti, scanner, tavolette grafiche, tastiere, microfoni, altoparlanti, joystick e altri dispositivi di ingresso e uscita standard di settore.
Audio digitale ottico
Porte di ingresso e uscita audio digitale ottiche utilizzano il protocollo S/PDIF (Sony/Philips Digital Interface) su cavi Toslink per il collegamento a dispositivi quali piatti, ricevitori, strumenti digitali e sistemi per la diffusione del suono in Dolby Surround 5.1.
Facili collegamenti
Collegare stampanti, scanner e altri dispositivi a Power Mac G5 è piu' semplice.
Anziché avere una fila di porte sul retro, ora sul pannello frontale ci sono le porte FireWire 400 e USB 2.0, oltre a un minijack per auricolari e altoparlanti.
Gigabit Ethernet
La tecnologia Ethernet Gigabit (10/100/1000BASE-T) è integrata in tutti i sistemi Power Mac G5 e la porta auto-sensing rende la connessione in rete semplicissima.
Go wireless.
La connessione in rete wireless è altrettanto semplice grazie alla scheda AirPort Extreme a 54Mbps e alla Base AirPort Extreme opzionali. Grazie al modulo e all'antenna Bluetooth opzionali potrete anche collegarvi senza cavi a l'ampia gamma di dispositivi digitali quali cellulari, palmari e stampanti.
Audio analogico
Power Mac G5 è anche dotato di ingresso e uscita audio stereo analogici e grazie al comodo minijack sul pannello frontale potrete facilmente collegare le vostre cuffie.
GRAFICA,
L'interfaccia grafica AGP 8X Pro di Power Mac G5 raddoppia la velocità massima di trasferimento, nonché la quantità di dati trasferiti in ogni ciclo del bus AGP, fornendo alle nuovissime GPU di casa ATI e NVIDIA la larghezza di banda necessaria per generare grafica 3D di qualità cinematografica.
Il bus AGP 8X Pro a 66MHz invia strobe otto volte per ciclo di clock, offrendo così un data rate di 533MHz e un'ampiezza di banda massima pari a 2,1GBps. Grazie a queste prestazioni estremamente migliorate, le applicazioni che prevedono un uso intenso della grafica godono di risoluzioni eccezionali, con texture realistiche.
Le configurazioni standard di Power Mac G5 includono la scheda grafica NVIDIA GeForce FX 5200 Ultra o ATI Radeon 9600 Pro, ciascuna con 64MB di SDRAM video.
Entrambe le schede offrono supporto per le più avanzate tecnologie grafiche, maggiore potenza, per garantire un'esperienza di gioco più veloce e fluida, e la più aggiornata programmabilità grafica, per effetti speciali. E la programmabilità costituisce un vantaggio fondamentale in quanto consente ai giochi e alle applicazioni professionali di prossima generazione di usare il chip grafico come se fosse un processore. In questo modo, il processore principale del computer non dovrà prendersi carico delle operazioni computazionali .
Per una grafica al top sono disponibili la scheda opzionale ATI Radeon 9800 Pro, una scheda AGP Pro e l'acceleratore grafico 3D. L'unica VPU (Visual Processing Unit) cinematica di settore, l'interfaccia di memoria DDR ATI Radeon 9800 Pro a 256 bit e la pipeline a 8 pixel regalano una grafica di qualita' professional.
Monitor digitali flat-panel Apple
I monitor flat-panel LCD di Apple, grazie al design ultrasottile che non occupa troppo spazio prezioso sulla vostra scrivania, vi consentono di avvalervi dei vantaggi della tecnologia LCD, con il doppio della luminosità, della nitidezza e del contrasto rispetto agli schermi CRT standard.
Supporto dual-display
Power Mac G5 è dotato della porta ADC (Apple Display Connector) per il collegamento di un monitor Apple e di una porta DVI per un secondo schermo digitale, supportando le modalità Scrivania Estesa e Duplicazione dello Schermo.
Monitor VGA
Power Mac G5 include anche un adattatore DVI-VGA Apple per consentire il collegamento di monitor VGA, come i CRT o i proiettori. Grazie all'adattatore DVI-ADC Apple si possono collegare al G5 due monitor Apple (inclusi due Apple Cinema HD Display da 23 pollici per una risoluzione di 3840x1200 pixel, più di 4,5 milioni di pixel).
Connettori S-video e RCA (composito)
Il nuovo adattatore opzionale DVI-Video funziona con la porta DVI presente su tutte le schede grafiche progettate per Power Mac G5. Consente di visualizzare l'anteprima del lavoro collegando dispositivi S-video e compositi, come ad esempio TV, VCR e proiettori comuni, grazie ai connettori S-video o RCA (composito).
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Configurations
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M9020LL/A |
M9031LL/A |
M9032LL/A |
| G5 Processor |
1.6GHz PowerPC G5 |
1.8GHz PowerPC G5 |
Dual 2GHz PowerPC G5 |
| L2 Cache |
512K |
512K |
512K per processor |
| Frontside bus |
800MHz |
900MHz |
1GHz per processor |
| DDR SDRAM main memory |
256MB PC2700 (333MHz)
4GB maximum |
512MB PC3200 (400MHz)
8GB maximum |
512MB PC3200 (400MHz)
8GB maximum |
| 8X AGP Pro graphics |
NVIDIA GeForce FX 5200 Ultra with 64MB DDR SDRAM |
NVIDIA GeForce FX 5200 Ultra with 64MB DDR SDRAM |
ATI RADEON 9600 Pro with 64MB DDR SDRAM |
| Hard drive (5) |
80GB Serial ATA; 7200 rpm |
160GB Serial ATA; 7200 rpm |
160GB Serial ATA; 7200 rpm |
| Optical drive |
SuperDrive (DVD-R/CD-RW) |
SuperDrive (DVD-R/CD-RW) |
SuperDrive (DVD-R/CD-RW) |
| PCI slots |
Three open full-length 33MHz, 64-bit PCI slots |
Three open full-length PCI-X slots: one 133MHz, 64-bit slot and two 100MHz, 64-bit slots |
Three open full-length PCI-X slots: one 133MHz, 64-bit slot and two 100MHz, 64-bit slots |
| High performance I/O |
One FireWire 800 port, two FireWire 400 ports (one on front); three USB 2.0 ports (one on front), two USB 1.1 ports (on keyboard); AGP 8X Pro slot with graphics card installed, including ADC connector and DVI connector |
| Bays |
Two internal hard drive bays (1 occupied); one optical drive bay |
| Networking |
Built-in 10/100/1000BASE-T Ethernet and 56K V.92 modem (13) |
| Wireless |
AirPort Extreme ready (based on 802.11g specification; IEEE 802.11b Wi-Fi certified)(6); Bluetooth option |
| Audio |
Optical digital audio in, optical digital audio out, analog audio in, analog audio out, front headphone minijack and speaker |
| System software |
Mac OS X v10.2 Jaguar |
| Software |
iLife (including iTunes, iPhoto, iMovie and iDVD), QuickBooks for Mac New User Edition, FAXstf, Art Directors Toolkit, Microsoft Office v.X Test Drive, FileMaker Pro Trial, OmniGraffle, OmniOutliner, GraphicConverter, QuickTime, iChat, Safari, Sherlock, Address Book, iCal, iSync, DVD Player, Mail, EarthLink, Acrobat Reader, Classic environment and Apple Developer Tools |
| Hardware accessories |
Apple Keyboard, Apple Mouse, USB keyboard extension cable, DVI to VGA adapter, modem cable, AirPort antenna |
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Build-to-Order Options
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| Memory |
(PC2700 or PC3200 DDR SDRAM; installed in pairs): 256MB, 512MB, 1GB, 2GB, 4GB, 8GB (4) |
| Hard drives (5) |
80GB Serial ATA, 160GB Serial ATA, 250GB Serial ATA |
| Optical drives |
SuperDrive (DVD-R/CD-RW), Combo drive (DVD-ROM/CD-RW) |
| Graphics |
NVIDIA GeForce FX 5200 Ultra with 64MB of DDR SDRAM, ATI Radeon 9600 Pro with 64MB of DDR SDRAM, ATI Radeon 9800 Pro with 128MB of DDR SDRAM |
| Audio |
Apple iPod, Logitech Z-680 5.1 speakers, Monster 1m Toslink Digital Fiber Optic Cable, Monster 2m Toslink Digital Fiber Optic Cable |
| External storage |
Xserve RAID with Apple Fibre Channel PCI Card |
| Wireless |
AirPort Extreme Card M8881LL/A
AirPort Extreme Base Station M8930LL/A
AirPort Extreme Base Station (with modem and antenna port) M8799LL/A
Internal Bluetooth module with antenna |
| Displays |
Apple Studio Display (17-inch flat panel) M7649ZM/B
Apple Cinema Display (20-inch flat panel) M8893ZM/A
Apple Cinema HD Display (23-inch flat panel) M8537ZM/A
Apple DVI to ADC Display Adapter M8661LL/A
Apple DVI to ADC Video Adapter M9267G/A |
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Technical Specifications
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Processing
- 1.6GHz, 1.8GHz, or dual 2GHz PowerPC G5 microprocessors
- PowerPC processor architecture with 64-bit data paths and registers
- Native support for 32-bit application code
- 512K on-chip L2 cache running at processor speed
- Parallel data structure supporting up to 215 simultaneous in-flight instructions
- Simultaneous issue of up to 10 out-of-order operations
- Dual-pipeline Velocity Engine for 128-bit single-instruction, multiple-data (SIMD) processing
- Two independent double-precision floating-point units
- Advanced three-stage branch-prediction logic
- 800MHz, 900MHz, or 1GHz 64-bit DDR frontside bus supporting up to 8-GBps data throughput; one on each processor on dual processor systems
- Point-to-point system controller
Memory
- 128-bit data paths for up to 6.4-GBps memory throughput
- 1.6GHz model
- 256MB of PC2700 (333MHz) DDR SDRAM
- Four DIMM slots supporting up to 4GB of main memory
- 1.8GHz systems and 2Ghz systems
- 512MB of PC3200 (400MHz) DDR SDRAM
- Eight DIMM slots supporting up to 8GB of main memory
- Support for the following DIMMs (in pairs):
- 128MB DIMMs (64-bit-wide, 128- or 256-Mbit)
- 256MB DIMMs (64-bit-wide, 128- or 256-Mbit)
- 512MB DIMMs (64-bit-wide, 256-Mbit)
- 1GB DIMMs (64-bit-wide, 256-Mbit)
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Graphics and displays
- AGP 8X Pro graphics slot supporting up to 2-GBps data throughput, with one of the following graphics cards installed:
- NVIDIA GeForce FX 5200 Ultra with 64MB of DDR SDRAM
- ATI Radeon 9600 Pro with 64MB of DDR SDRAM
- ATI Radeon 9800 Pro with 128MB of DDR SDRAM (build-to-order option)
- Support for digital resolutions up to 1920 by 1200 pixels
- Support for analog resolutions up to 1600 by 1200 pixels
- ADC and DVI connectors; DVI to VGA adapter included
- Dual display support for extended desktop and video mirroring modes
- Support for up to two Apple flat panel displays(8)
Storage
- Two Serial ATA controllers supporting up to 150-MBps data throughput per hard drive
- Two 3.5-inch hard drive expansion bays with drive guides for a second drive
- One 80GB or 160GB 7200-rpm Serial ATA drive installed in standard configurations(5)
- Support for up to two internal Serial ATA drives; 500GB maximum system capacity(5)
- 8MB memory buffers on all hard drives
- Optical drive bay with SuperDrive (DVD-R/CD-RW) installed; writes DVD-R discs at up to 4x speed, reads DVDs at up to 8x speed, writes CD-R discs at up to16x speed, writes CD-RW discs at up to 10x speed, reads CDs at up to 32x speed
PCI expansion
- One of the following configurations:
- Three open full-length 64-bit, 33MHz PCI slots, or
- One open full-length 64-bit, 133MHz PCI-X slot and two open full-length 64-bit 100MHz PCI-X slots
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Communications
- 10/100/1000BASE-T Ethernet connector (RJ-45)
- Built-in 56K V.92 modem (RJ-11) (13)
- Expansion slot for optional 54-Mbps AirPort Extreme Card (based on IEEE 802.11g specification; 802.11b Wi-Fi certified) (6)
- External AirPort Extreme antenna
- Optional Bluetooth 1.1 module and antenna
Peripherals and audio
- One FireWire 800 port and two FireWire 400 ports (one on front panel, 15W total power)
- Three USB 2.0 ports (on one front panel), two USB 1.1 ports on keyboard
- Front headphone minijack and speaker
- Optical digital audio in and out Toslink connectors
- Stereo audio in and out minijacks
Electrical and environmental requirements
- Meets ENERGY STAR requirements
- Line voltage: 100-125V AC or 200-240V AC
- Frequency: 50Hz to 60Hz, single phase
- Maximum current: 6.5A (low-voltage range) or 7.5A (high-voltage range)
- Operating temperature: 50° to 95° F (10° to 35° C)
- Storage temperature: -40° to 116° F (-40° to 47° C)
- Relative humidity: 5% to 95% noncondensing
- Maximum altitude: 10,000 feet
Size and weight
- Height: 20.1 inches (51.1 cm)
- Width: 8.1 inches (20.6 cm)
- Depth: 18.7 inches (47.5 cm)
- Weight: 39.2 pounds (17.8 kg) (14)
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- Tests performed by Apple in June 2003 using preproduction Power Mac G5 units. The Power Mac systems ran a PowerPC G5 ó optimized version of Photoshop 7.0.1 including optimized AltiVecCore, ACE, and BIB Carbon Libraries; the Dell Dimension ran Photoshop 7.0.1.
- ìWorldís fastestî based on SPEC CPU2000 benchmark results and leading professional application performance tests against 3GHz Pentium 4 ó based Dell Dimension 8300 and dual 3.06GHz Xeon-based Dell Precision Workstation 650. SPEC CPU2000 benchmarks run with GCC 3.3 compiler and independently tested; professional applications tested by Apple, June 2003.
- Based on SPEC CPU2000 benchmark results against 3GHz Pentium 4 ó based Dell Dimension 8300 and dual 3.06GHz Xeon-based Dell Precision Workstation 650, run with GCC 3.3 compiler and independently tested, June 2003.
- Selected models.
- 1GB = 1 billion bytes; actual formatted capacity less.
- Achieving data rates of 54 Mbps requires that all users have an AirPort Extreme Card and connect to an AirPort Extreme Base Station. If any user of Wi-Fi certified 802.11b products joins the network, that user will get up to 11 Mbps and AirPort Extreme network users will get less than 54 Mbps. Actual speed will vary based on range, connection rate, site conditions, size of network, and other factors.
- Check with manufacturer for compatibility.
- Second Apple flat-panel display requires Apple DVI to ADC Adapter, sold separately.
- Actual rates will vary.
- Preliminary specifications based on preproduction Power Mac G5 units.
- Based on SPEC CPU2000 benchmark results against 3GHz Pentium 4 ó based Dell Dimension 8300 and dual 3.06GHz Xeon-based Dell Precision Workstation 650m, performed by VeriTest, June 2003.
- Tests performed by Apple in June 2003 using preproduction Power Mac G5 units with application software optimized for the PowerPC G5.
- Compatible ISP and telephone services required. Your ISP may not support all V.92 features. Modem will function according to V.90 standards if V.92 services are not available. Actual modem speeds lower.
- Weight varies by configuration and manufacturing process.
Product contains electronic documentation.
Backup copy of software is included. |
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