Apple Macintosh Performa 6300CD vs Apple Macintosh Quadra 900

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Macintosh Performa 6300CD compared with Macintosh Quadra 900

	AppleMacintosh Performa 6300CD	AppleMacintosh Quadra 900
Overview
Released
Released	1995	October 1991
Performance
Processor
Processor	PowerPC 603e 100 MHz (Macintosh Performa 6300CD)	68040 25 MHz (Macintosh Quadra 900)
CPU cores
CPU cores	1	1
Memory
Memory	16 MB (better)	4 MB
Storage
Storage	1.2 GB (better)	160 MB to 400 MB
CPU
CPU	100 MHz PowerPC 603e with integrated floating-point unit, 32 KB L1 cache, 256 KB L2 cache and 64-bit data path at 40 MHz	25 MHz Motorola 68040 with integrated memory-management and floating-point units and 8 KB on-chip cache; no standard L2 cache
GPU
GPU	Integrated 1 MB DRAM video supports 640 × 480 at 16-bit colour or 832 × 624 at 8-bit colour through the DB-15 monitor port	Built-in video with 1 MB VRAM, expandable to 2 MB; Apple lists 8-bit colour at 640 × 480, 832 × 624 and 1152 × 870 with standard VRAM, and 24-bit at 640 × 480 and 832 × 624 with 2 MB
Memory type
Memory type	Two 72-pin SIMM slots; 16 MB minimum and 64 MB maximum with 80 ns memory	Sixteen 30-pin 80 ns SIMM slots in banks of four, with 4 MB standard. Apple's October 1991 catalogue supported 64 MB using 4 MB SIMMs; its later support sheet lists a 256 MB technical maximum using larger modules but notes 8 MB and 16 MB SIMMs are not supported by Apple. Original UK maker brochure explicitly advertises 256 MB using 16 MB SIMMs; that original maker qualification differs from the later support sheet's unsupported-module note.
Storage type
Storage type	1.2 GB internal IDE hard drive, 1.44 MB floppy drive and 4× CD-ROM drive	Internal 1.44 MB SuperDrive and optional 160 MB SCSI hard drive at launch; Apple listed a 400 MB version for January 1992. The case supports three further internal SCSI devices, including a removable-media device.
Expansion slots
Expansion slots	Macintosh LC processor-direct slot, communications slot, TV-tuner bay and video input/output slot	Five NuBus '90 slots and one processor-direct slot
Display
Screen
Screen	None built in	None built in
Connections
Ports
Ports	Headphone jack	Ethernet, headphone jack
Back ports
Back ports	DB-15 monitor output, Apple Desktop Bus, external DB-25 SCSI, two serial connectors, microphone input and stereo sound output	Apple Desktop Bus, DB-15 video, DB-25 SCSI, two serial ports, AAUI Ethernet, mono sound input and stereo sound output
External displays
External displays	–	Built-in video supports Apple's monitor range, with colour depth depending on VRAM and resolution; Apple's launch catalogue also names VGA, NTSC and PAL monitor support
Speakers
Speakers	–	Internal speaker, mono audio input and stereo sound output; Apple supplied a microphone
Design and power
Type
Type	Compact	Tower
Weight
Weight	–	16.7 kg
Width × depth × height
Width × depth × height	–	226 × 523 × 473 mm
Operating system
Operating system	macOS	macOS
Size and weight detail
Size and weight detail	Apple lists 4.3 × 12.6 × 16.5 inches and 19 lb for the Quadra 630 form factor	Apple's 18.6 × 8.9 × 20.6 inch dimensions and 36.8 lb weight for the floppy-only model; metric fields are rounded conversions
Power supply
Power supply	Maximum 55 W; 110–240 V AC at 50–60 Hz; 4.5 V alkaline clock battery	Maximum 303 W, 100–240 V AC, 50–60 Hz; 3.6 V lithium clock battery and keyboard soft power
In the box
In the box	Original System Software 7.5.1. Apple lists 16 October 1995 as introduction; a separate first-sale date was not established.	Original System Software 7.0.1, microphone and ADB mouse; Apple's October 1991 catalogue says the keyboard was sold separately