Apple Macintosh Centris 610 vs Apple Macintosh Quadra 650

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Macintosh Centris 610 compared with Macintosh Quadra 650

	AppleMacintosh Centris 610	AppleMacintosh Quadra 650
Overview
Released
Released	1993	1993
Performance
Processor
Processor	Motorola 68LC040 20 MHz (Macintosh Centris 610)	68040 33 MHz (Macintosh Quadra 650)
CPU cores
CPU cores	1	1
Memory
Memory	4 MB	4 MB
Storage
Storage	80 MB	230 MB (better)
CPU
CPU	20 MHz Motorola 68LC040 with integrated memory management unit and 8 KB L1 cache, but no floating-point unit	33 MHz Motorola 68040 with integrated memory management and floating-point unit, 8 KB L1 cache and 32-bit data path
GPU
GPU	Built-in video has 512 KB VRAM standard and supports up to 1 MB; at 640 × 480, 8-bit colour is standard and 16-bit colour requires the VRAM upgrade	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 on the logic board with two 72-pin SIMM slots, expandable to 68 MB	4 or 8 MB on the logic board plus four 72-pin SIMM slots; Apple supports 132 or 136 MB total respectively
Storage type
Storage type	Apple's specification lists internal SCSI hard drives from 80 to 500 MB, a 1.44 MB floppy drive and optional 2× CD-ROM drive	Internal 1.44 MB floppy drive, SCSI hard drive in Apple's 230–500 MB range and optional 2× CD-ROM drive
Expansion slots
Expansion slots	One expansion position for either a seven-inch NuBus card or a processor-direct-slot card, using the appropriate adapter	Three NuBus slots and one processor-direct slot
Display
Screen
Screen	None built in	None built in
Design and power
Type
Type	Compact	Compact
Weight
Weight	–	11.34 kg
Width × depth × height
Width × depth × height	415 × 397 × 85 mm	330 × 419 × 152 mm
Operating system
Operating system	macOS	macOS
Size and weight detail
Size and weight detail	Apple lists a weight of 14 lb	Apple's 6 × 13 × 16.5 inch and 25 lb reference dimensions; metric fields are rounded conversions
Power supply
Power supply	–	Maximum 230 W; 100–240 V AC, 50–60 Hz; 3.6 V lithium clock battery
In the box
In the box	Apple lists 10 February 1993 as introduction; a distinct first-sale date was not established. The 86 W specification is power-supply capacity, not measured running consumption.	Original System Software 7.1 with System Enabler 040. Apple lists 21 October 1993 as introduction; a separate first-sale month was not established.
Connections
Ports
Ports	–	Ethernet
Back ports
Back ports	Two Apple Desktop Bus ports, two serial ports, external DB-25 SCSI, DB-15 video, audio input and output; Apple AUI Ethernet was optional	Two Apple Desktop Bus ports, DB-15 video, DB-25 SCSI, printer and modem serial ports, AAUI-15 Ethernet, microphone input and speaker output
External displays
External displays	–	Built-in video supports up to 1152 × 870 pixels; colour depth depends on VRAM
Speakers
Speakers	Built-in mono speaker with stereo audio output	–