Apple Power Mac G5 (Early 2005) vs Apple Power Macintosh 8100/80

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Power Mac G5 (Early 2005) compared with Power Macintosh 8100/80

	ApplePower Mac G5 (Early 2005)	ApplePower Macintosh 8100/80
Overview
Released
Released	April 2005	1994
Performance
Processor
Processor	2 × PowerPC G5 2000 MHz (Power Mac Early 2005), 2 × PowerPC G5 2300 MHz (Power Mac Early 2005) or 2 × PowerPC G5 2700 MHz (Power Mac Early 2005)	PowerPC 601 80 MHz (Power Macintosh 8100/80)
CPU cores
CPU cores	2	1
Graphics
Graphics	ATI Radeon 9600 (128 MB) or ATI Radeon 9650 (256 MB)	–
Memory
Memory	512 MB, 4 GB or 8 GB (better)	8 MB or 16 MB
Storage
Storage	160 GB to 250 GB (better)	250 MB to 1 GB
CPU
CPU	Two physical PowerPC G5 processors at 2, 2.3 or 2.7 GHz, each with 512 KB L2 cache and no L3 cache. Front-side bus per processor is 1, 1.15 or 1.35 GHz. The dual 2.7 GHz model uses liquid cooling.	80 MHz PowerPC 601 with integrated floating-point unit, 32 KB L1 cache, 256 KB L2 cache and 64-bit data path at 40 MHz; 4 MB ROM
GPU
GPU	Dual 2 and 2.3 GHz: ATI Radeon 9600 with 128 MB DDR and two single-link DVI outputs. Dual 2.7 GHz: ATI Radeon 9650 with 256 MB GDDR3, one single-link and one dual-link DVI output. Optional NVIDIA GeForce 6800 Ultra DDL with 256 MB has two dual-link DVI outputs and occupies the adjacent PCI slot.	Power Macintosh video card with 2 MB VRAM, expandable to 4 MB using four 512 KB SIMMs; separate HDI-45 video shares system DRAM. The non-AV model has no S-video input or output.
Memory type
Memory type	Stock 512 MB PC3200 DDR400, installed in matched pairs. Dual 2 GHz has four DIMM slots and a 4 GB maximum. Dual 2.3 and 2.7 GHz have eight slots and an 8 GB maximum. Configuration rows keep the stock drives and graphics at base and maximum memory.	8 MB soldered to the logic board and eight 72-pin noncomposite SIMM sockets, using matched pairs rated 80 ns or faster; maximum 264 MB total
Storage type
Storage type	Stock 160 GB on dual 2 GHz and 250 GB on dual 2.3/2.7 GHz, all 7200 rpm Serial ATA. Two internal drive bays; optional 250 or 400 GB drives, including two 400 GB drives. One optical bay with 16x SuperDrive supporting DVD±R and up to 4x dual-layer DVD+R recording.	Internal SCSI hard drive and 1.44 MB Apple SuperDrive floppy; 2× AppleCD 300i Plus CD-ROM is configuration-dependent. Apple's US brochure lists 8 MB/250 MB with or without CD-ROM, 16 MB/500 MB with or without CD-ROM, and 16 MB/1 GB with CD-ROM; an additional 16 MB/500 MB bundle includes SoftWindows.
Expansion slots
Expansion slots	AGP 8x Pro graphics slot. Dual 2 GHz has three 64-bit 33 MHz PCI slots. Dual 2.3 and 2.7 GHz have PCI-X: two 100 MHz slots and one 133 MHz slot.	Three NuBus slots for long or short cards; processor-direct slot occupied by the video card. Internal space accommodates a half-height 5.25-inch device, one full-height 3.5-inch hard drive and one removable 3.5-inch device.
Display
Screen
Screen	None built in	None built in
Connections
Ports
Ports	3 × USB-A, Ethernet, headphone jack	Ethernet
Ethernet
Ethernet	1 Gb/s	–
External displays
External displays	Up to 2	Up to 2
Front ports
Front ports	USB 2.0, FireWire 400 and headphone minijack.	–
Back ports
Back ports	Two USB 2.0, FireWire 800, FireWire 400, Gigabit Ethernet, optical S/PDIF input/output and analogue audio line-in/out. Three chassis USB ports in total, plus keyboard USB 1.1 ports. AirPort Extreme, Bluetooth 2.0 + EDR and a V.92 modem are optional.	ADB, AAUI-15 Ethernet, HDI-45 and DB-15 video, external DB-25 SCSI, two LocalTalk/GeoPort serial ports, and 16-bit stereo audio input and output; the brochure includes an HDI-45 display adapter with the non-AV model
External displays
External displays	Two displays in extended desktop or mirrored modes. Radeon 9600 supports two displays up to 1920 × 1200; Radeon 9650 supports one 30-inch Apple Cinema HD Display via dual-link DVI. Optional 6800 Ultra DDL supports two 30-inch displays. DVI-to-VGA adapter included.	Maker brochure supports two simultaneous displays. The VRAM output supports 24-bit colour at 640 × 480 and 832 × 624; 2 MB VRAM gives 16-bit colour at 1024 × 768 and 1152 × 870, while 4 MB gives 24-bit colour at those resolutions.
Speakers
Speakers	Built-in speaker; analogue and optical audio connections.	–
Keyboard and mouse
Keyboard and mouse	Apple Keyboard, Apple Mouse, USB extension cable and DVI-to-VGA adapter.	Apple Desktop Bus Mouse II and display adapter included in the US non-AV bundles; keyboard and monitor separate
Design and power
Type
Type	Tower	Tower
Weight
Weight	20.2 kg	11.5 kg (better)
Width × depth × height
Width × depth × height	–	196 × 396 × 360 mm
Operating system
Operating system	macOS	macOS
Size and weight detail
Size and weight detail	The exact maker sheet labels height as 47.5 cm, width 20.6 cm and depth 51.1 cm. Earlier G5 sheets label height/depth in the opposite order; main dimensions are omitted because those published axes conflict. Maker reference weight is 20.2 kg and varies with configuration.	Original Apple Service Source lists 360 × 196 × 396 mm and 11.5 kg, varying by installed devices. The US brochure's 30.6 cm height conflicts with its own 14.25-inch figure; the UK brochure and Service Source give 36 cm. Apple's support sheet lists 14 × 7.7 × 15.75 inches and 25.3 lb; metric headline dimensions use the original service document.
Power supply
Power supply	450 W on dual 2/2.3 GHz; 600 W on dual 2.7 GHz, as stated by the maker.	Automatically configured 100–240 V AC, 50–60 Hz; Service Source distinguishes 298 W maximum continuous and 453 W peak AC input, excluding the monitor, from 200 W continuous DC output. Brochures and support list 200 W maximum without that distinction.
Materials
Materials	Aluminium enclosure.	–
In the box
In the box	Mac OS X Tiger and iLife ’05. Apple’s 27 April 2005 launch says these models are available “this week”; first sale is kept at April precision rather than treating the announcement as a confirmed delivery day. The older single 1.8 GHz model retained in the launch range is represented separately as Late 2004.	Original System Software 7.1.2 with PowerPC Enabler 1.0, setup and reference documentation and limited warranty. Apple records introduction on 14 March 1994; April 1994 Apple Directions states the exact model is available in large quantities worldwide, establishing sale in 1994 without resolving the first-sale month.