Apple Macintosh IIcx vs Apple Macintosh IIx

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Macintosh IIcx compared with Macintosh IIx

	AppleMacintosh IIcx	AppleMacintosh IIx
Overview
Released
Released	1989	September 1988
Performance
Processor
Processor	68030 16 MHz (Macintosh IIcx)	68030 16 MHz (Macintosh IIx)
CPU cores
CPU cores	1	1
Memory
Memory	1 MB or 4 MB (better)	1 MB
Storage
Storage	40 MB to 80 MB (better)	40 MB
CPU
CPU	16 MHz Motorola 68030 with integrated memory-management unit and 68882 floating-point coprocessor; 0.5 KB L1 cache	Nominal 16 MHz 68030 with integrated paged memory management unit and 68882 floating-point coprocessor; 0.5 KB L1 cache, no L2 cache or second processor
GPU
GPU	No built-in video; a compatible NuBus video card is required for a display	No integrated video output; a separately sold NuBus video card is required
Memory type
Memory type	Eight 30-pin SIMM slots in two banks of four; Apple lists 1–128 MB using 120 ns memory and a 256 KB ROM. The original ROM uses 24-bit addressing without a 32-bit software extension.	Eight 30-pin SIMM slots populated in groups of four, 120 ns or faster; Apple's support sheet certifies 1–32 MB with 256 KB, 1 MB or 4 MB modules. Larger third-party configurations are not represented as maker-supported; 256 KB ROM
Storage type
Storage type	Internal 1.44 MB floppy drive and 40 or 80 MB internal SCSI hard-drive configurations	One or two 1.44 MB high-density floppy drives; optional 40–80 MB internal SCSI hard drives. Factory configurations shown are the 1 MB floppy-only system and Low End Mac's separately priced 1 MB/40 MB system; no 80 MB/RAM pair inferred
Expansion slots
Expansion slots	Three NuBus slots; Low End Mac describes the smaller case and tool-free internal access	Six NuBus slots, one occupied when a display video card is installed
Display
Screen
Screen	None built in	None built in
Connections
Ports
Ports	Headphone jack	Headphone jack
Back ports
Back ports	Two Apple Desktop Bus ports, DB-19 external floppy, DB-25 SCSI, printer and modem serial ports and sound output; no built-in video or Ethernet	Two Apple Desktop Bus ports, DB-25 SCSI, printer and modem serial ports and stereo sound output; no built-in Ethernet or video socket
External displays
External displays	A NuBus video card is required; resolution and colour depth depend on the fitted card	Requires a NuBus video card; available resolutions and colour depths depend on the card
Speakers
Speakers	Internal speaker and sound output	Built-in speaker and stereo 8-bit sound output
Design and power
Type
Type	Compact	Compact
Weight
Weight	6.2 kg (better)	10.9 kg
Width × depth × height
Width × depth × height	302 × 366 × 140 mm	475 × 366 × 140 mm
Operating system
Operating system	macOS	macOS
Size and weight detail
Size and weight detail	Apple's 5.5 × 11.9 × 14.4 inch and 13.6 lb reference dimensions; metric fields are rounded conversions	Apple's reference dimensions are 5.5 × 18.7 × 14.4 inches and 24 lb; metric fields are rounded conversions
Power supply
Power supply	Maximum 159 W; 100–240 V AC, 50–60 Hz; 3.6 V lithium clock battery and keyboard soft power	Maximum 230 W; 90–270 V AC, 48–62 Hz, 1.9 A; 3.6 V lithium clock battery and soft power
In the box
In the box	Original System Software 6.0.3. Apple lists 7 March 1989 as introduction; a separate maker first-sale date was not established.	Original System Software 6.0.1. Apple introduced the IIx on 19 September 1988; an independent model chronology records September availability, without an exact first-sale day