Apple Macintosh LC 520 vs Apple Macintosh LC 575

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Macintosh LC 520 compared with Macintosh LC 575

	AppleMacintosh LC 520	AppleMacintosh LC 575
Overview
Released
Released	1993	1994
Performance
Processor
Processor	68030 25 MHz (Macintosh LC 520)	Motorola 68LC040 33 MHz (Macintosh LC 575)
CPU cores
CPU cores	1	1
Memory
Memory	4 MB	4 MB
Storage
Storage	80 MB to 160 MB	160 MB to 320 MB (better)
CPU
CPU	25 MHz Motorola 68030 with 32-bit data path, 0.5 KB L1 cache and optional 68882 floating-point coprocessor	33 MHz Motorola 68LC040 with no floating-point unit
GPU
GPU	Built-in video with 512 KB VRAM supports 640 × 480 at 8-bit colour; an optional 768 KB allocation supports 16-bit colour	Built-in video uses 512 KB VRAM standard, expandable to 1 MB; the 640 × 480 display supports 8-bit colour standard and 16-bit colour with upgraded VRAM
Memory type
Memory type	4 MB on the logic board, expandable to 36 MB with one 72-pin SIMM	4 MB soldered RAM standard, expandable to 36 MB with one 72-pin SIMM
Storage type
Storage type	Internal SCSI hard drive, 1.44 MB floppy drive and optional 2× CD-ROM. Apple's support sheet lists 80–160 MB hard drives; its original developer note also lists a 40 MB option.	160 or 320 MB internal SCSI hard drive and 1.44 MB floppy drive; internal AppleCD 300i Plus CD-ROM was optional
Expansion slots
Expansion slots	One LC processor-direct slot	One LC-compatible processor-direct slot and one communications slot for an optional modem or Ethernet card
Display
Screen size
Screen size	14″	14″
Resolution
Resolution	640 × 480	640 × 480
Panel
Panel	CRT	CRT
Display type
Display type	Built-in 14-inch Trinitron colour CRT	Built-in 14-inch Trinitron colour CRT
Connections
Ports
Ports	Headphone jack	Headphone jack
Back ports
Back ports	Two Apple Desktop Bus ports, external DB-25 SCSI, printer and modem serial connections, microphone input and headphone output	Apple Desktop Bus, external DB-25 SCSI, two serial ports, audio input and output; front headphone jack
Speakers
Speakers	Built-in stereo speakers	Two built-in stereo speakers
Microphones
Microphones	Built-in microphone	Built-in microphone
Design and power
Type
Type	All-in-one	All-in-one
Operating system
Operating system	macOS	macOS
Size and weight detail
Size and weight detail	Apple lists 17.9 × 13.5 × 16.5 inches and 40.5 lb	–
Power supply
Power supply	Maximum 40 W according to Apple's technical sheet	–
In the box
In the box	Apple lists 28 June 1993 as the introduction date; a separate first-sale date was not established.	Apple's 1994 developer note documents the original 68LC040 configuration. Its current support page at article 112222 describes a later PowerPC upgrade-card configuration, which is excluded here; a distinct maker first-sale date was not established.