Apple · Macintosh

Macintosh Quadra 840AV

Released 1993

A 40 MHz 68040 tower with an AT&T digital signal processor, analogue video input and three NuBus slots.

Specifications

Processor: 68040 40 MHz (Macintosh Quadra 840AV)
CPU cores: 1
Memory: 4 MB
Storage: 230 MB to 1 GB
CPU: 40 MHz Motorola 68040 with integrated memory management and floating-point unit, 8 KB L1 cache and 32-bit data path; separate 66.67 MHz AT&T 3210 DSP
GPU: Built-in video with 1 MB VRAM supports 16-bit colour at 640 × 480 and 8-bit at 1024 × 768; 2 MB VRAM raises those to 24-bit and 16-bit respectively
Memory type: Four 72-pin SIMM slots; Apple supports 4–128 MB total with 60 ns memory
Storage type: Internal 1.44 MB floppy drive, SCSI hard drive in Apple's 230 MB–1 GB range and optional 2× CD-ROM drive
Expansion slots: Three NuBus slots

Ports: Ethernet
Back ports: Apple Desktop Bus, DB-15 video, DB-25 SCSI, GeoPort, printer and modem serial ports, AAUI-15 Ethernet, S-video and RCA video input and output, microphone input and speaker output
External displays: Built-in video supports up to 1152 × 870 pixels; colour depth depends on VRAM

Type: Tower
Weight: 11.48 kg
Width × depth × height: 196 × 400 × 356 mm
Operating system: macOS
Size and weight detail: Apple's 14 × 7.7 × 15.75 inch and 25.3 lb reference dimensions; metric fields are rounded conversions
Power supply: Maximum 200 W; 100–240 V AC, 50–60 Hz; 3.6 V lithium clock battery
In the box: Original System Software 7.1 with System Enabler 088. Apple lists 29 July 1993 as introduction; a separate first-sale month was not established.

Processor	Memory	Storage	Storage type
68040 40 MHz (Macintosh Quadra 840AV)	4 MB	230 MB	Hard drive
68040 40 MHz (Macintosh Quadra 840AV)	4 MB	1 GB	Hard drive

Model	Type	Processor	Memory	Storage	Screen	Weight	Released
AppleMacintosh Quadra 800	Tower	68040 33 MHz (Macintosh Quadra 800)	8 MB	230 MB	–	10.89 kg	1993
AppleMacintosh Quadra 900	Tower	68040 25 MHz (Macintosh Quadra 900)	4 MB	160 MB – 400 MB	–	16.7 kg	Oct 1991
AppleMacintosh Quadra 700	Tower	68040 25 MHz (Quadra 700)	4 MB	80 MB – 400 MB	–	6.2 kg	Oct 1991