Apple Power Mac G5 (Early 2005) vs Apple Power Macintosh 5500/225

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Power Mac G5 (Early 2005) compared with Power Macintosh 5500/225

	ApplePower Mac G5 (Early 2005)	ApplePower Macintosh 5500/225
Overview
Released
Released	April 2005	1997
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 603e 225 MHz (Power Macintosh 5500)
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)	16 MB or 32 MB
Storage
Storage	160 GB to 250 GB (better)	2 GB to 4 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.	225 MHz PowerPC 603e with integrated floating-point unit, 32 KB L1 cache, 256 KB L2 cache and 64-bit 50 MHz system bus.
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.	2 MB built-in SGRAM with hardware 2D and 3D acceleration, including QuickDraw 3D, video capture and QuickTime/MPEG-1 playback. Exact education brochure specifies 24-bit colour through 832 × 624 and 16-bit colour through 1024 × 768. Exact support and shared service tables also list 1152 × 870 at 16-bit and 1280 × 1024 at 8-bit; the brochure does not establish these as built-in CRT modes, so its documented 1024 × 768 display mode is retained as the headline. Display resolution can be changed in software; the CRT has no fixed pixel matrix.
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.	US education ordering model M5761LL/A has 32 MB RAM; the shared service manual also documents 16 MB configurations sold worldwide. No system RAM is soldered on the logic board. Two 168-pin DIMM slots support up to 128 MB with 5 V, 60 ns or faster EDO DIMMs; the brochure specifies noncomposite modules with 1K or 2K refresh. The service manual supports both fast-page and EDO DIMMs, noting that mixing them can use fast-page timings.
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.	Exact US education brochure specifies a 2 GB IDE hard drive, 12× CD-ROM and 1.44 MB SuperDrive floppy. Exact support and shared service document 24× optical configurations too. Later US education configurations have 32 MB/24× and Mac OS 8.0; Europe has 32 MB/2 GB/24× with a 33.6 Kbit/s modem, while Japan has 32 MB/4 GB/24× with the same modem and Mac OS 8.0.
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.	One PCI 2.0 expansion slot for a 7-inch card with a Macintosh driver, Communications Slot II used by the Ethernet card or regional modem, video-input slot and TV/FM tuner bay. The education brochure lists optional Apple TV/FM Radio System and Avid Cinema Video Editing System. The shared service provides a digital-video connector for compatible expansion hardware; it is not compatible with the earlier Quadra 660AV/840AV connector.
Display
Screen
Screen	None built in	12.8″
Resolution
Resolution	–	1024 × 768
Panel
Panel	–	CRT
Display type
Display type	–	Built-in multiple-scan flat-square colour CRT, 15-inch nominal with 12.8-inch diagonal viewable image and 0.28 mm dot pitch. A refresh rate specifically established for the highest brochure-documented built-in mode remains unpublished and is omitted.
Connections
Ports
Ports	3 × USB-A, Ethernet, headphone jack	Headphone jack, Ethernet
Ethernet
Ethernet	1 Gb/s (better)	0.01 Gb/s
External displays
External displays	Up to 2	–
Front ports
Front ports	USB 2.0, FireWire 400 and headphone minijack.	Headphone output, sound-volume and display controls; infrared receiver for the optional TV/FM remote.
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.	US education brochure and exact support specify 10BASE-T Ethernet, ADB, external DB-25 SCSI, two RS-232/RS-422/LocalTalk/GeoPort-compatible serial ports, PlainTalk-compatible sound input and stereo output. The Ethernet card occupies Communications Slot II; later European and Japanese configurations instead supply a 33.6 Kbit/s modem. Brochure supports six external SCSI devices. Video-input card is included in the education brochure and accepts composite and S-Video; TV/FM tuner and Avid Cinema are optional.
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.	US education brochure includes NTSC TV-output capability for a compatible television, VCR or camcorder. Computer-monitor output requires the appropriate external video connector; the shared service documents video mirroring rather than an independent extended desktop. Regional video bundles vary.
Speakers
Speakers	Built-in speaker; analogue and optical audio connections.	Built-in stereo speakers, 16-bit stereo sound input/output and SRS 3D surround processing, with rear stereo speaker output.
Microphones
Microphones	–	Built-in microphone; PlainTalk-compatible external sound input.
Keyboard and mouse
Keyboard and mouse	Apple Keyboard, Apple Mouse, USB extension cable and DVI-to-VGA adapter.	Exact M5761LL/A education brochure includes AppleDesign Keyboard, ADB Mouse II, 32 MB RAM, 2 GB drive, 12× CD-ROM, internet-access software and setup/reference documentation. Video-input and NTSC TV-output hardware are included in this education presentation; TV/FM tuner and Avid Cinema are optional. Exact photographs show the beige 225 MHz model with keyboard/mouse; later international bundles differ.
Design and power
Type
Type	Tower	All-in-one
Weight
Weight	20.2 kg (better)	21 kg
Width × depth × height
Width × depth × height	–	383 × 406 × 445 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.	Exact education brochure gives 44.5 × 38.3 × 40.6 cm (height × width × depth), 21 kg / 47 lb; support database agrees with these inch dimensions and 47 lb. AppleFacts August 1997 second page instead prints tower-like 40.6 × 19.8 × 42.9 cm and 20 kg, inconsistent with its all-in-one identity. The shared service swaps width/depth and prints inconsistent pound weights. Brochure complete-unit measurements are retained, with weight varying by installed devices.
Power supply
Power supply	450 W on dual 2/2.3 GHz; 600 W on dual 2.7 GHz, as stated by the maker.	Exact support specifies 220 W maximum, 110–240 V AC at 50–60 Hz. The original education brochure separately lists 150 W maximum excluding the display, 110/220 V and 47–63 Hz. Shared service lists 125 W and 220 W maximum for all line/load conditions; these differently qualified ratings are not treated as measured operating consumption.
Noise
Noise	–	Variable-speed fan automatically runs at the lowest speed needed to minimise noise; the processor also has a small cooling fan. No acoustic measurement is published in these sources.
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.	Exact support lists original System 7.5.5 and Enabler 411; education brochure lists Mac OS 7.6 or later and describes Mac OS 7.6.1 software, while later service configurations use Mac OS 8.0. Apple records introduction on 17 February 1997, but the August 1997 current ordering brochure and catalogue establish sale only at year precision in this record. Actual first-sale month remains unresolved. Energy Saver schedules sleep, starting up and shutdown.