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Apple Macintosh Quadra 840AV Specs

All Macintosh Quadra Models | All 1993 Models | Dynamically Compare This Mac to Others

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Apple Macintosh Quadra 840AVThe Apple Macintosh Quadra 840AV, designed to replace the Quadra 950, features a 40 MHz 68040 processor, a 66.7 MHz AT&T 3210 DSP processor to accelerate multimedia functions, 8 MB or 16 MB of RAM, a 230 MB, 500 MB, or 1.0 GB hard drive, an optional 2X CD-ROM drive, and an Audio-Visual card with S-video and RCA video input/output in an expandable tower case.

The Macintosh Quadra 840AV is the fastest in the Quadra series, and the fastest 68k-based Macintosh.

To purchase or upgrade a vintage Mac -- and newer Macs -- see site sponsor OHS.


  • Tech Specs
  • Ports

Click on the category for related details. The most commonly needed info is "open" by default, but all info is important.


July 29, 1993 July 18, 1994
Details: The "Introduction Date" refers to the date a model was introduced via press release. The "Discontinued Date" refers to the date a model either was replaced by a subsequent system or production otherwise ended.

Also see: All Macs introduced in 1993.
40 MHz* 68040
Details: *The Macintosh Quadra 840AV has a 32-bit processor and a 32-bit data path. Sometimes this model is designated as having an 80 MHz processor, since the clock input runs at 80 MHz. However, the processor itself is not "clock doubled," so technically it only is a 40 MHz processor.
N/A Integrated
Details: N/A
40 MHz N/A
Details: N/A
Macintosh ROM 2 MB
Details: N/A
8k N/A
Details: N/A
72-pin SIMM 60 ns
Details: N/A
8 MB, 16 MB 128 MB
Details: This model can be upgraded to 128 MB of RAM with four 32 MB SIMMs.

Also see: Actual Max RAM of All G3 & Later Macs.
None 4
Details: N/A
Dedicated* VRAM SIMM*
Details: *This model has slots for four 80 ns VRAM SIMMs.
1 MB* 2 MB*
Details: *1 MB of VRAM soldered. Four VRAM slots can be filled with 256k VRAM SIMMs for a total of 2 MB of VRAM.
Single Display* 512x384-1152x870*
Details: *By default, the Macintosh Quadra 840AV only supports a single display, but a second one can be supported with the addition of a NuBus video card. With the standard 1 MB of VRAM, the system is capable of supporting 512x384 and 640x400 at 24-bit, 640x480, 800x600, and 832x624 at 16-bit, and 1024x768 and 1152x860 at 8-bit. With 2 MB of VRAM installed, it can support 512x384, 640x400, 640x480, and 800x600 at 24-bit and 832x624, 1024x768, and 1152x870 at 16-bit.
Single Display* Variable*
Details: *This model can support a second display with the addition of a video card. By default, it only supports a single display.
230 MB, 500 MB, 1 GB SCSI
Details: *By default, this model is configured with a 230 MB, 500 MB or 1 GB internal SCSI hard drive.
2X CD-ROM (Optional*) 1.44 MB (Either**)
Details: *The entry-level M9025LL/A configuration shipped without a standard CD-ROM drive. Standard in other configurations.

**This model is compatible with both auto and manual-inject floppy disk drives.
None AAUI-15
Details: N/A
3 NuBus 1 (5.25")*
Details: *If the CD-ROM drive is not installed, a second external 5.25" bay is available.
Tower Mac Quadra 800
Details: N/A
M9025LL/A* Macintosh Quadra 840AV
Details: *M9025LL/A refers to the configuration with 8 MB of RAM and a 230 MB hard drive. The configuration with 8 MB of RAM, a 230 MB hard drive and internal 2X CD-ROM drive is M9028LL/A, 16 MB of RAM and a 500 MB hard drive is M1836LL/A, 16 MB of RAM, a 500 MB hard drive and a 2X CD-ROM is M1837LL/A, and finally, 16 MB of RAM, a 1 GB hard drive and a 2X CD-ROM is M1838LL/A.
M9020 78
Details: Please note that these identifiers commonly refer to multiple models.

Also see: All Macs with the M9020 Model Number and 78 Gestalt ID.

For more about identifiers and how to locate them on modern Macs, please refer to EveryMac.com's Mac Identification section.
3.6V Lithium N/A
Details: N/A
7.1 7.1-7.5.1, 7.5.3-8.1
Details: Earlier and later versions of the Macintosh System/Finder and Mac OS are not supported.

For systems capable of running older versions of the Mac OS -- as well as modern ones -- please see site sponsor OHS. OHS specializes in heavily upgraded Macs capable of running both Mac OS X and Mac OS 9 applications.
14.0 x 7.7 x 15.75 25.3 lbs (11.5 kg)
Details: In inches - height by width by depth, (35.6 cm, 19.6 cm, 40 cm).
US$4100, US$5100 N/A
Details: Photo Credit: Apple Computer, Inc.


Click on a category for additional details. The most commonly needed info is "open" by default, but all info is important. The icons correspond with the icons for each port on the computer.


1 (DB-15) None
Details: N/A
1 1 (DB-25)
Details: N/A
None 2*
Details: *Two Geoport serial ports standard (one printer, one modem).
None 1 (AAUI-15)
Details: AAUI-15 Ethernet standard.
1* 1*
Details: *Also includes composite video in/composite video out (RCA) ports.
1 (PlainTalk) None
Details: N/A
1 (16-Bit Stereo) None
Details: N/A
1 None
Details: N/A
1 N/A
Details: 100V-240V AC, 50-60 Hz Frequency, 200 Max Watts.

Icon Credit: Apple Computer, Inc.

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