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Apple Macintosh Centris 660AV vs Apple Macintosh LC 475

Every spec side by side, from each maker's published figures.

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AppleMacintosh Centris 660AVAppleMacintosh LC 475
Overview
Released19931993
Performance
ProcessorMotorola 68040 25 MHz (Macintosh Centris 660AV)68LC040 25 MHz (Macintosh LC 475)
CPU cores11
Memory4 MB4 MB
Storage81.92 MB80 MB to 230 MB
CPU25 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 processorMotorola 68LC040 running at 25 MHz, with integrated memory management, 8 KB L1 cache and no floating-point unit; Apple support lists a 50 MHz clock input, while its developer note confirms a 25 MHz processor clock
GPUBuilt-in 1 MB VRAM supports 832 × 624 at 16-bit colour or 1152 × 870 at 8-bit colourBuilt-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 type4 MB soldered memory and two 72-pin SIMM slots; Apple lists 4–68 MB total with 70 ns memory4 MB on the logic board and one 72-pin SIMM slot; Apple supports 4–36 MB total
Storage typeApple 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, 160 or 230 MB internal SCSI hard drive configurations in Apple's developer note; its support page gives an 80–250 MB range
Expansion slotsOne short NuBus card using an optional angle adapter, or a processor-direct cardOne LC III-compatible expansion slot; the 68LC040 cannot use a separate FPU card
Display
ScreenNone built inNone built in
Connections
PortsEthernet–
Back portsDB-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 outputApple Desktop Bus, DB-15 video, DB-25 SCSI, printer and modem serial ports, sound input and output; no built-in Ethernet
External displaysBuilt-in video supports one external monitor at up to 1152 × 870 pixels in 8-bit colourBuilt-in video supports up to 1152 × 870 pixels; colour depth depends on VRAM
Speakers–Internal speaker
Design and power
TypeCompactCompact
Weight–3.99 kg
Width × depth × height–310 × 389 × 74 mm
Operating systemmacOSmacOS
Size and weight detailApple lists 3.4 × 16.3 × 15.6 inches and 14 lbApple's 2.9 × 12.2 × 15.3 inch and 8.8 lb reference dimensions; metric fields are rounded conversions
Power supplyMaximum 86 W; 100–240 V AC at 50–60 Hz; 3.6 V lithium clock batteryMaximum 30 W; 100–240 V AC, 47–63 Hz; 3.6 V lithium clock battery
In the boxOriginal 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.

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