Apple Macintosh Performa 6400/180 vs Apple Twentieth Anniversary Macintosh

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Macintosh Performa 6400/180 compared with Twentieth Anniversary Macintosh

	AppleMacintosh Performa 6400/180	AppleTwentieth Anniversary Macintosh
Overview
Released
Released	1996	–
Performance
Processor
Processor	PowerPC 603e 180 MHz (Performa 6400)	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	16 MB	32 MB (better)
Storage
Storage	1.6 GB	2 GB (better)
CPU
CPU	180 MHz PowerPC 603e with integrated floating-point unit, 32 KB L1 cache and a 64-bit 40 MHz bus. The 256 KB Apple High Performance Module L2 cache is optional, unlike the standard cache of the 6400/200. The shared Service Source calls the processor 603ev; the exact specification page and original brochure use 603e.	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	1 MB built-in video DRAM, not expandable; 640 × 480 and 800 × 600 at 16-bit colour, 832 × 624 and 1024 × 768 at 8-bit colour. A separate PCI graphics card is needed for additional capabilities.	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 soldered to the logic board and an 8 MB DIMM supplied; two 168-pin 64-bit fast-page-mode DIMM sockets support up to 136 MB total, with 70 ns or faster memory.	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	1.6 GB internal IDE hard drive, 1.44 MB SuperDrive floppy drive and tray-loading 8× CD-ROM. The shared service manual lists a 1.2 GB drive and AppleCD 600i for generic 6400 configurations; the exact 180 MHz support page and ordering brochure agree on 1.6 GB and 8×.	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	Two PCI 2.0 slots for 6.88-inch cards with Mac drivers; Communications Slot II occupied by the supplied modem, plus positions for optional video input and TV/FM tuner cards. One pre-cabled 5.25-inch internal SCSI bay. Optional Avid Cinema requires the Apple Video System and occupies one PCI slot; it is not supplied with the standard 180 MHz configuration.	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
Screen	None built in	12.1″
Resolution
Resolution	–	800 × 600
Refresh rate
Refresh rate	–	60 Hz
Display type
Display type	–	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.
Connections
Ports
Ports	Headphone jack	2 × headphone jack
Front ports
Front ports	3.5 mm headphone output and volume buttons; optional infrared remote support.	–
Back ports
Back ports	DB-15 monitor output, ADB, DB-25 external SCSI, two GeoPort-compatible serial ports, 3.5 mm sound input compatible with PlainTalk microphones and line-level 3.5 mm speaker output. The supplied modem provides 28.8 Kbit/s data and 14.4 Kbit/s fax; replacing it with an Ethernet card provides wired networking. Optional video input handles composite and S-video NTSC, PAL or SECAM.	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	–	No external monitor output specified
Speakers
Speakers	Built-in full-range monophonic speaker switches to subwoofer operation when external speakers are connected. 16-bit stereo input/output at 11.025, 22.05 or 44.1 kHz; SRS surround processing applies to rear sound output, not the front headphone jack.	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	–	Built-in omnidirectional electret microphone
Keyboard and mouse
Keyboard and mouse	Keyboard, mouse, cables and bundled applications listed for US order M5167LL/A; display, TV/FM tuner, Apple Video System, Avid Cinema and PC Compatibility Card are optional. Gallery image includes an optional monitor.	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	Tower	All-in-one
Weight
Weight	–	6.8 kg
Width × depth × height
Width × depth × height	198 × 428 × 406 mm	419 × 254 × 438 mm
Operating system
Operating system	macOS	macOS
Size and weight detail
Size and weight detail	Original brochure lists 40.6 × 19.8 × 42.8 cm (height × width × depth), matching the service manual. Weight is 20.18 kg without the monitor and varies with installed devices; the service manual explicitly excludes the CD-ROM drive. The technical booklet transposes depth and height labels.	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	Exact specification page and ordering brochure list 220 W maximum, 100–125 or 200–240 V AC at 47–63 Hz. The shared service manual agrees on 220 W maximum continuous but gives wider voltage bands; the original technical booklet instead states 140 W input and 98 W DC output. These conflicting ratings are retained rather than treated as measured consumption.	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	–	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 System Software 7.5.3 with System Enabler 410 v1.1. Apple lists 5 August 1996 as introduction; the original 1996 ordering brochure and contemporary MacUser review establish sale in 1996, but a distinct first-sale month remains unresolved.	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.