Apple Macintosh LC 580 vs Apple Twentieth Anniversary Macintosh

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Macintosh LC 580 compared with Twentieth Anniversary Macintosh

	AppleMacintosh LC 580	AppleTwentieth Anniversary Macintosh
Overview
Released
Released	1995	–
Performance
Processor
Processor	Motorola 68LC040 33 MHz (Macintosh LC 575)	PowerPC 603e 250 MHz (Power Macintosh 6500/250)
CPU cores
CPU cores	1	1
Graphics
Graphics	–	ATI 3D RAGE II (2 MB SGRAM)
Memory
Memory	8 MB	32 MB (better)
Storage
Storage	500 MB	2 GB (better)
CPU
CPU	Original Motorola 68LC040 at 33 MHz, without an integrated floating-point unit. Apple catalogue gives 66/33 MHz internal/bus clock; optional PowerPC upgrade is excluded from this configuration. Shared Service Source describes it as an updated LC 575	250 MHz PowerPC 603e with integrated floating-point unit, 50 MHz system bus, 32 KB L1 cache split into 16 KB data/instruction caches, and a 256 KB L2 High Performance Cache Module operating at 50 MHz. No processor supplier is assigned without exact maker evidence.
GPU
GPU	Built-in video uses 1 MB DRAM soldered to the logic board, displaying 32,768 colours at 640 × 480	ATI 3D RAGE II with 2 MB SGRAM, with QuickDraw 2D/3D and video acceleration. The maker specifies thousands of colours at 800 × 600; application-window restrictions apply to accelerated 3D at that mode.
Memory type
Memory type	8 MB standard in the maker catalogue: 4 MB soldered plus one 4 MB SIMM, with a second socket free. Two 72-pin 80 ns SIMM sockets, expandable to 52 MB; the single-bank socket accepts only 1, 4 or 16 MB modules. 1 MB ROM in original service specifications	32 MB EDO RAM supplied as one 32 MB DIMM or two 16 MB DIMMs; two 168-pin slots support up to 128 MB. Exact Apple TIL specifies 5 V EDO or fast-paged DIMMs, 60 ns or faster, with 2K refresh; 3.3 V or 4K-refresh DIMMs are incompatible. 4 MB ROM.
Storage type
Storage type	500 MB internal IDE hard disk in the catalogue configuration, plus manual-inject Apple SuperDrive floppy. Double-speed tray-loading internal CD-ROM is optional or included in some regional configurations; the separately marketed Performa 580CD has its own software and hardware bundle	2 GB ATA/IDE hard disk, vertically mounted 4× CD-ROM and manual-insert 1.44 MB Apple SuperDrive floppy. Optical-drive output and the TV/FM tuner are controlled by the supplied infrared remote.
Expansion slots
Expansion slots	One 114-pin LC processor-direct slot, one communications slot for optional Ethernet or fax modem, one video-input slot for optional capture hardware and an internal connector for optional external video	One PCI 2.0 slot for a 6.88-inch card drawing up to 15 W, plus a Comm Slot II for a modem or Ethernet card. A separate video-input slot and TV/FM tuner card are fitted. Macintosh-specific PCI drivers are required; NuBus cards are incompatible.
Display
Screen size
Screen size	14″	12.1″
Resolution
Resolution	640 × 480	800 × 600 (better)
Panel
Panel	CRT	–
Refresh rate
Refresh rate	66.67 Hz (better)	60 Hz
Display type
Display type	Built-in 14-inch diagonal shadow-mask colour CRT, 0.28 mm dot pitch. The exact service manual calls the viewable image 11.5 inches and gives a nominal 240 × 180 mm active raster; these maker descriptions are retained separately	12.1-inch backlit active-matrix colour LCD, 800 × 600 at 60 Hz; 6 bits per red/green/blue channel. Maker does not name the LCD subtype, so IPS or TN is not guessed.
Display features
Display features	640 × 480 at 66.67 Hz in the exact timing table (66.7 Hz rounded elsewhere in the same manual); 16-bit colour	–
Connections
Ports
Ports	Headphone jack	2 × headphone jack
Front ports
Front ports	Stereo headphone socket; front brightness and contrast controls	–
Back ports
Back ports	One ADB port; one DB-25 SCSI port supporting six external devices; two RS-232/RS-422 serial ports, with 9-pin mini-DIN modem and 8-pin mini-DIN printer connectors; mono sound input and stereo sound output	One ADB, external DB-25 SCSI for up to six devices, two GeoPort-compatible serial ports, rear stereo output, two separate stereo audio inputs, S-video input with a supplied composite-video adapter, TV aerial/cable connector and FM aerial connector. One front headphone output plus one rear headphone-compatible line output are counted. No built-in USB, FireWire or Ethernet.
External displays
External displays	Optional external video connector supports mirroring on compatible 640 × 480 and 800 × 600 monitors, as listed in the shared service manual; no external video socket as standard	No external monitor output specified
Speakers
Speakers	Two integrated speakers; 8-bit stereo playback and mono recording at 11 or 22 kHz. Optional CD-ROM supports audio-CD playback	Custom Bose Acoustimass system with integrated stereo speakers and a separate floor-standing bass unit. The power-supply ratings are not acoustic output ratings.
Microphones
Microphones	Integrated microphone for monaural sound input	Built-in omnidirectional electret microphone
Keyboard and mouse
Keyboard and mouse	Supports Apple Desktop Bus keyboards and the ADB Mouse II. Maker photograph shows a keyboard and mouse; regional education bundles vary	Custom keyboard with Italian leather palm rests, removable/repositionable ADB trackpad, infrared remote, Bose bass unit and composite-to-S-video adapter. January1998 Apple catalogue lists a 33.6 Kbps GeoPort modem/Internet Connection Kit; older power-test conditions separately describe a 28.8 Kbps modem.
Design and power
Type
Type	All-in-one	All-in-one
Weight
Weight	18.3 kg	6.8 kg (better)
Width × depth × height
Width × depth × height	343 × 419 × 455 mm	419 × 254 × 438 mm
Operating system
Operating system	macOS	macOS
Size and weight detail
Size and weight detail	Apple catalogue: 455 × 343 × 419 mm (height × width × depth), 18.3 kg, varying with installed devices. Service Source rounds the same 17.9 × 13.5 × 16.5 inch case to 455 × 344 × 420 mm and 18.4 kg; headline follows the catalogue’s published metric values	Headline size and 6.8 kg weight describe the main unit only. Separate bass unit weighs 4.8 kg and measures 270 × 211 × 298 mm (height × width × depth); keyboard is 0.84 kg and 25 × 292 × 207 mm. Main-unit metric dimensions follow the original maker table rather than converting its rounded inch values.
Power supply
Power supply	Automatically configured 100–240 V AC mains; service supply operating range 90–264 V rms, 50–60 Hz ±3 Hz	Bass-unit voltage selector covers 90–130 or 180–264 V AC, 47–63 Hz, single phase; manually configured and factory preset
Power use
Power use	Service Source: 120 W maximum for all line and load conditions. Current support article describes a PowerPC-upgraded configuration and lists 60 W, so that figure is not transferred to the original model	Maximum continuous AC input 140 W; maximum continuous DC output 70 W. Typical AC input 47 W is qualified to the maker test with 250 MHz 603e, 2 GB disk, 28.8 Kbps modem, L2 module and CD-ROM; sleep is below 30 W without PCI cards.
In the box
In the box	Original 68LC040 model is offered in Apple’s April and October 1995 catalogues; the latter identifies US education-only sales and varying worldwide configurations. Current Apple support article describes an installed PowerPC 601 upgrade card. It records introduction on 3 April 1995, while contemporary Macworld says education shipping was planned for that day; exact actual first retail delivery is unconfirmed, so release retains supported year precision	Mac OS 7.6.1 with System Enabler 704 originally. Apple support labels introduction as 1 June 1997; widely copied March dates describe announcements, and the accessible May order notice does not establish actual first delivery. Released is omitted pending exact first-sale evidence. Earlier preview articles describe a proposed 604e machine and are not used for this production 603e model. The primary picture is a grayscale original Apple catalogue image, retained without colour reconstruction; higher-quality original colour press imagery remains unavailable.