Apple Power Mac G5 (June 2004) vs Apple Power Macintosh 6100/66 DOS Compatible

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Power Mac G5 (June 2004) compared with Power Macintosh 6100/66 DOS Compatible

	ApplePower Mac G5 (June 2004)	ApplePower Macintosh 6100/66 DOS Compatible
Overview
Released
Released	June 2004	1995
Performance
Processor
Processor	2 × PowerPC G5 1800 MHz (Power Mac June 2004), 2 × PowerPC G5 2000 MHz (Power Mac June 2004) or 2 × PowerPC G5 2500 MHz (Power Mac June 2004)	PowerPC 601 66 MHz (Power Macintosh 6100/66)
CPU cores
CPU cores	2	1
Graphics
Graphics	NVIDIA GeForce FX 5200 Ultra (64 MB) or ATI Radeon 9600 XT (128 MB)	–
Memory
Memory	256 MB, 512 MB, 4 GB or 8 GB (better)	16 MB
Storage
Storage	80 GB to 160 GB (better)	500 MB
CPU
CPU	Two physical PowerPC G5 processors at 1.8, 2 or 2.5 GHz, each with 512 KB L2 cache. Per-processor front-side bus is 900 MHz, 1 GHz or 1.25 GHz respectively. Only the dual 2.5 GHz uses the maker’s liquid-cooling system.	Macintosh side uses a 66 MHz PowerPC 601 with integrated FPU and PMMU, 32 KB L1 cache, 256 KB L2 cache and a 64-bit data path at 33 MHz. The separate Intel 80486DX2-66 on the DOS Compatibility Card runs at 66 MHz with a 33 MHz bus and 8 KB internal cache; it runs PC applications independently, rather than adding a second PowerPC core. The main processor comparison describes the Macintosh processor only.
GPU
GPU	Dual 1.8 and 2 GHz: NVIDIA GeForce FX 5200 Ultra with 64 MB DDR. Dual 2.5 GHz: ATI Radeon 9600 XT with 128 MB DDR. Optional ATI Radeon 9800 XT with 256 MB occupies the adjacent PCI slot as well as AGP.	Macintosh HDI-45 video uses system DRAM. The DOS card has separate 512 KB video RAM and a VGA controller; Sound Blaster-compatible 16-bit stereo playback is mixed with Macintosh and CD audio. PC sound hardware provides output only, while Macintosh audio has input and output.
Memory type
Memory type	DDR400 PC3200 in matched pairs. Dual 1.8 GHz starts with 256 MB and has four DIMM slots with a 4 GB maximum. Dual 2 and 2.5 GHz start with 512 MB and have eight slots with an 8 GB maximum. Base and maximum memory rows retain each model’s stock storage and graphics.	8 MB on the Macintosh logic board and two 72-pin SIMM slots installed in pairs; maximum supported Macintosh RAM 72 MB. The DOS card can share selected Macintosh memory or use its own single 72-pin SIMM up to 32 MB; PC-local memory is not additional Macintosh RAM. AppleFacts also lists 8 MB system memory, but the shown 16 MB/500 MB factory configuration is explicitly ordered as M3972LL/A in Apple's TIL 16756.
Storage type
Storage type	Stock 80 GB on dual 1.8 GHz and 160 GB on dual 2/2.5 GHz; 7200 rpm Serial ATA. Two bays with 150 MB/s interfaces; optional 80, 160 or 250 GB drives, up to two 250 GB drives. One optical bay with 8x DVD-R SuperDrive; Combo drive is optional.	M3972LL/A has a 500 MB internal hard drive, plus built-in 1.44 MB Apple SuperDrive floppy; optional double-speed CD-ROM reads Macintosh and DOS discs. Exact current support gives a broader 350–500 MB range; the initial January newsletter anticipated 16 MB/350 MB before final availability, so that prospective configuration is not added. DOS drive files reside on the Macintosh hard drive.
Expansion slots
Expansion slots	AGP 8x Pro graphics slot. Dual 1.8 GHz has three 64-bit 33 MHz PCI slots. Dual 2 and 2.5 GHz have PCI-X: two 100 MHz and one 133 MHz slots.	The sole processor-direct expansion position is occupied by the DOS Compatibility Card and its adapter; AV and NuBus expansion cannot coexist in that position. The PC processor card has a local-memory SIMM socket and sound expansion card.
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, V.92 modem, optical Toslink input/output and analogue audio line-in/out. Three chassis USB ports in total, plus keyboard USB 1.1 ports. Optional 54 Mbps AirPort Extreme and Bluetooth 1.1.	ADB, HDI-45 Macintosh display output, DB-25 external SCSI, two GeoPort serial ports, AAUI Ethernet, microphone input and speaker output. The DOS card's 26-pin connection uses a monitor adapter cable with display and PC joystick connectors. Macintosh serial and printer interfaces can emulate PC connections, with compatibility limits in the developer guide.
External displays
External displays	ADC and DVI with included DVI-to-VGA adapter; two displays in extended or mirrored modes. A second ADC display requires a separate adapter.	One shared display or two separate simultaneous Macintosh and PC displays; only one environment receives keyboard and mouse input at a time. Macintosh video supports 512 × 384 and 640 × 480 at 16-bit colour, or 832 × 624 at 8-bit. DOS card supports VGA/SVGA displays; the developer note lists shared VGA 640 × 480 and SVGA 800 × 600 monitors. Depth and supported modes depend on environment and driver.
Speakers
Speakers	Built-in speaker; analogue and optical connections for external audio.	–
Keyboard and mouse
Keyboard and mouse	Apple Keyboard, Apple Mouse, USB extension cable, DVI-to-VGA adapter, modem cable and AirPort antenna.	Apple's DOS-card specification lists the compatibility card, MS-DOS 6.22 manual and disks, Windows 3.1, Macintosh PC Exchange User's Guide and monitor cable. Gallery monitor, keyboard and mouse illustrate the original maker setup and do not establish a universal factory bundle.
Design and power
Type
Type	Tower	Compact
Weight
Weight	20.2 kg	–
Width × depth × height
Width × depth × height	206 × 475 × 511 mm	414 × 396 × 86 mm
Operating system
Operating system	macOS	macOS
Size and weight detail
Size and weight detail	Maker height 51.1 cm, width 20.6 cm, depth 47.5 cm; reference weight 20.2 kg varies with configuration.	Original AppleFacts gives 86 × 414 × 396 mm (height × width × depth), used here. Exact support gives 3.4 × 16.3 × 15.6 inches and 14 lb; shared service manual gives 85 × 415 × 399 mm and 6.4 kg depending on installed devices. AppleFacts prints inconsistent 16.2 lb and 3.3 kg; headline weight omitted rather than resolving that conflict by guessing.
Power supply
Power supply	–	Exact support lists 210 W maximum and automatically configured 100–240 V AC, 50–60 Hz. Shared-family Service Source separately gives 132 W maximum continuous AC input, 201 W peak input excluding monitor power, and 86 W continuous DC output; these ratings retain their different conditions.
Materials
Materials	Aluminium enclosure with separate cooling zones.	–
In the box
In the box	Mac OS X Panther and iLife. The 1.8 and 2 GHz models were available on 9 June 2004. Apple initially stated July availability for the 2.5 GHz model, later than the generation’s first sale.	Original System 7.5 with PowerPC Enabler 1.1.1, MS-DOS 6.22 and Windows 3.1. Apple support records introduction on 3 January 1995; January Apple Directions only promises first-quarter shipments. April 1995 AppleFacts lists the current product and the contemporary June TidBITS review describes a purchased unit, establishing sale in 1995 without proving the first-sale month. Apple explicitly calls the earlier Quadra 610 DOS Compatible its predecessor.