Apple · Macintosh

Macintosh Quadra 610

Released 1993

A low-profile 25 MHz Macintosh desktop with optional internal CD-ROM and either a processor-direct or short NuBus expansion card. Most configurations include a 68040 floating-point unit; the cheaper entry version uses a 68LC040.

Model history · 2 models, 1993–1993
  1. 1993Macintosh Centris 610Compare
  2. 1993Macintosh Quadra 610
Type
Compact
Processor
Motorola 68040 25 MHz (Macintosh Centris 650)
Memory
8 MB
Storage
160 MB – 230 MB
Screen
–
Weight
6.4 kg

Performance

Processor
Motorola 68040 25 MHz (Macintosh Centris 650)
CPU cores
1
Memory
8 MB
Storage
160 MB to 230 MB
CPU
25 MHz Motorola MC68040 with integrated FPU and memory management unit, 32-bit data bus and 8 KB cache on the datasheet/catalogue configurations listed here. Apple developer note confirms an entry-level MC68LC040 version without FPU, plus socketed processors; its exact RAM/storage pairing has not been established in maker ordering tables and is not invented here. DOS Compatible hardware and later PowerPC upgrades are separate options
GPU
512 KB VRAM standard, upgradable to 1 MB. At 640 × 480, 512 KB gives 256 colours and 1 MB gives 32,000 colours; at 1152 × 870, 16 shades with 512 KB and 256 with 1 MB. The 8/230CD configuration includes 1 MB VRAM
Memory type
4 MB DRAM on the logic board plus two 72-pin SIMM slots; 8 MB supplied in the maker catalogue configurations. Up to 68 MB total; 80 ns or faster SIMMs can be installed individually. 1 MB ROM
Storage type
1.44 MB Apple SuperDrive with enlarged manual-insertion slot, replacing the Centris automatic-injection design. Maker ordering offers 8/160 with hard disk and no CD-ROM, or 8/230CD with 230 MB SCSI hard disk and AppleCD 300i double-speed drive
Expansion slots
One internal slot accepts either a processor-direct card or a seven-inch NuBus card with the required adapter. Internal bay for optional 5.25-inch half-height storage device; not a full-length NuBus chassis

Display

Screen
None built in

Connections

Ports
Headphone jack
Back ports
Two ADB, two RS-232/RS-422 serial mini-DIN-8, DB-25 SCSI, DB-15 video, mono sound input and stereo-capable sound output. AAUI-15 Ethernet included on the datasheet/catalogue versions; optional across the wider family and absent from the entry-level version. No USB or external floppy connector
External displays
Maker lists built-in support for Apple displays and compatible RGB/VGA/SVGA displays. Separate monitor and keyboard; catalogue setup image shows Macintosh Color Display and Apple Extended Keyboard II as separately ordered options
Speakers
Built-in mono speaker; stereo eight-bit sound chip supports external stereo headphones/equipment. Eight-bit monophonic sound input sampled at 11 or 22 kHz
Keyboard and mouse
Mouse, software and documentation in maker ordering list; monitor and keyboard ordered separately

Design and power

Type
Compact
Weight
6.4 kg
Width × depth × height
415 × 397 × 85 mm
Operating system
macOS
Size and weight detail
Exact datasheet metric dimensions retained: H8.5/W41.5/D39.7 cm; 6.4 kg varies with internal devices. Shared Service Source incorrectly prints depth4.2in/107mm; exact datasheet and archived support agree15.6in depth
Power supply
100–240 V AC with automatic configuration; exact datasheet gives 50–60 Hz and 210 W maximum excluding monitor. Shared Service Source lists 112 W excluding monitor; preserve the source disagreement rather than treat either as measured running consumption. 3.6 V lithium clock battery
In the box
System 7.1 with System Enabler 040 v1.1 per archived maker specifications. Apple introduction is21October1993, not adopted as first-sale day. Fall1993 maker catalogue offers ordering and a promotion through31December1993, supporting sold during1993; exact first-delivery month remains unconfirmed

Configurations

ProcessorMemoryStorageStorage type
Motorola 68040 25 MHz (Macintosh Centris 650)8 MB160 MBHard drive
Motorola 68040 25 MHz (Macintosh Centris 650)8 MB230 MBHard drive

Pros and cons

Pros

  • Low-profile case with internal CD-ROM option
  • Built-in video with expandable video memory
  • Floating-point unit and Ethernet on higher configurations

Cons

  • Entry version lacks a floating-point unit and Ethernet
  • Only one position for a PDS or seven-inch NuBus card
  • Separate monitor and keyboard required

Closest rivals

Model
TypeProcessorMemoryStorageScreenWeightReleased
CompactMotorola 68LC040 33 MHz (Macintosh LC 630 DOS Compatible)8 MB500 MB–8.6 kg–
CompactMotorola 68LC040 33 MHz (Macintosh LC 575)4 MB – 8 MB250 MB–7.7 kg1994
CompactMotorola 68LC040 25 MHz (Macintosh Quadra 610 DOS Compatible)8 MB160 MB––Mar 1994

Previous model: Macintosh Centris 610.

Sources

  1. support.apple.com/en-euro/112209
  2. 1000bit.it/ad/bro/apple/apple-macintoshquadra610black_whitedatasheet.pdf
  3. vintageapple.org/catalogs/pdf/The_Apple_Catalog_Fall_1993.pdf
  4. macdat.net/files/pdf/apple/developer_notes/macintosh_quadra_610_650.pdf
  5. macdat.net/files/pdf/apple/servicesource/quadra_610.pdf

Photo: Apple, original Macintosh Quadra 610 datasheet via 1000bit; scanned press photograph with optional CD-ROM installed

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