Apple Macintosh Centris 660AV vs Apple Macintosh Quadra 605

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Macintosh Centris 660AV compared with Macintosh Quadra 605

	AppleMacintosh Centris 660AV	AppleMacintosh Quadra 605
Overview
Released
Released	1993	1993
Performance
Processor
Processor	Motorola 68040 25 MHz (Macintosh Centris 660AV)	68LC040 25 MHz (Macintosh Quadra 605)
CPU cores
CPU cores	1	1
Memory
Memory	4 MB	4 MB
Storage
Storage	81.92 MB	80 MB to 160 MB (better)
CPU
CPU	25 MHz Motorola 68040 with integrated floating-point unit, 8 KB L1 cache and 32-bit data path; separate 55 MHz AT&T 3210 digital signal processor	25 MHz Motorola 68LC040 with integrated memory management, 8 KB L1 cache and no floating-point unit
GPU
GPU	Built-in 1 MB VRAM supports 832 × 624 at 16-bit colour or 1152 × 870 at 8-bit colour	Built-in video with 512 KB VRAM supports 8-bit colour at 640 × 480 and 832 × 624; 1 MB VRAM raises both to 16-bit colour
Memory type
Memory type	4 MB soldered memory and two 72-pin SIMM slots; Apple lists 4–68 MB total with 70 ns memory	4 MB on the logic board and one 72-pin SIMM slot; Apple supports 4–36 MB total
Storage type
Storage type	Apple developer note lists an 80 MB internal SCSI hard drive in its base configuration; support lists an 80–500 MB range. A 1.44 MB floppy drive is built in; a 2× CD-ROM was an option.	Internal 1.44 MB floppy drive and 80 or 160 MB internal SCSI hard drive
Expansion slots
Expansion slots	One short NuBus card using an optional angle adapter, or a processor-direct card	One LC III-compatible expansion slot; the 68LC040 cannot use a separate FPU card
Display
Screen
Screen	None built in	None built in
Connections
Ports
Ports	Ethernet	–
Back ports
Back ports	DB-15 monitor output, Apple Desktop Bus, external DB-25 SCSI, two serial connections including GeoPort, AAUI Ethernet, composite and S-video input and output, sound input and output	Apple Desktop Bus, DB-15 video, DB-25 SCSI, printer and modem serial ports, sound input and output; no built-in Ethernet
External displays
External displays	Built-in video supports one external monitor at up to 1152 × 870 pixels in 8-bit colour	Built-in video supports up to 1152 × 870 pixels; colour depth depends on VRAM
Speakers
Speakers	–	Internal speaker
Design and power
Type
Type	Compact	Compact
Weight
Weight	–	3.99 kg
Width × depth × height
Width × depth × height	–	310 × 389 × 74 mm
Operating system
Operating system	macOS	macOS
Size and weight detail
Size and weight detail	Apple lists 3.4 × 16.3 × 15.6 inches and 14 lb	Apple's 2.9 × 12.2 × 15.3 inch and 8.8 lb reference dimensions; metric fields are rounded conversions
Power supply
Power supply	Maximum 86 W; 100–240 V AC at 50–60 Hz; 3.6 V lithium clock battery	Maximum 30 W; 100–240 V AC, 47–63 Hz; 3.6 V lithium clock battery
In the box
In the box	Original System Software 7.1. Apple lists 29 July 1993 as introduction; a separate first-sale date was not established. Apple's developer note gives a 4 MB/80 MB base configuration, while later catalogue sources mention larger bundled options.	Original System Software 7.1 with System Enabler 065. Apple lists 21 October 1993 as introduction; a separate first-sale month was not established.