Apple Power Macintosh 6100/66 DOS Compatible vs Apple Power Macintosh 7200/90

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Power Macintosh 6100/66 DOS Compatible compared with Power Macintosh 7200/90

	ApplePower Macintosh 6100/66 DOS Compatible	ApplePower Macintosh 7200/90
Overview
Released
Released	1995	1995
Performance
Processor
Processor	PowerPC 601 66 MHz (Power Macintosh 6100/66)	PowerPC 601 90 MHz (Power Macintosh 7200/90)
CPU cores
CPU cores	1	1
Memory
Memory	16 MB	8 MB or 16 MB
Storage
Storage	500 MB	500 MB
CPU
CPU	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.	90 MHz PowerPC 601 with 32 KB L1 cache, optional L2 cache and 64-bit data path at 45 MHz
GPU
GPU	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.	Built-in video has 1 MB VRAM, expandable to 2 or 4 MB; 4 MB supports 24-bit colour at 1024 × 768
Memory type
Memory type	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.	Four 168-pin DIMM slots; Apple supports 8–256 MB total with 70 ns memory
Storage type
Storage type	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.	Internal 1.44 MB floppy drive, 500 MB SCSI hard drive and 4× CD-ROM drive
Expansion slots
Expansion 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.	Three PCI slots; optional PC Compatibility Card
Display
Screen
Screen	None built in	None built in
Connections
Ports
Ports	Ethernet	Ethernet
External displays
External displays	Up to 2	–
Back ports
Back ports	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.	Apple Desktop Bus, DB-15 video, DB-25 SCSI, two GeoPort serial connections, AAUI and 10BASE-T Ethernet, microphone input and stereo audio output
External displays
External displays	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.	Built-in video supports up to 1280 × 1024 pixels with expanded VRAM; colour depth depends on VRAM
Keyboard and mouse
Keyboard and mouse	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	Compact	Compact
Weight
Weight	–	9.98 kg
Width × depth × height
Width × depth × height	414 × 396 × 86 mm	365 × 430 × 156 mm
Operating system
Operating system	macOS	macOS
Size and weight detail
Size and weight detail	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.	Apple's 6.15 × 14.37 × 16.93 inch and 22 lb reference dimensions; metric fields are rounded conversions
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.	Maximum 150 W; 100–240 V AC, 50–60 Hz
In the box
In the box	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.	Apple Directions lists an 8 MB US launch configuration, while Apple's Japanese specification lists a 16 MB configuration, both with 500 MB storage. Original System Software 7.5.2. Apple lists 8 August 1995 as introduction; a distinct maker first-sale date was not established.