"A4000, the Holy Grail of Amiga Computing"

Released in October 1992 by Commodore, the Amiga 4000 is the last and most powerful Amiga computer ever built. Featuring a 32-bit architecture and AGA graphics (24-bit), A4000 offers access to the full library of Amiga software. The computer is highly upgradeable, including accelerators, memory, CD-Roms, graphic cards, audio cards, and even a 486DX card for running old IBM PC software.

  • The Amiga 4000/40 was originally sold for $3,700 ($7,620 in today's money), later, the Amiga 4000/30 was sold for $2,400 ($4,900 in today's money)
  • Only 35,000 desktop A4000 were ever sold
  • There was also a tower model, only 3,000 towers (A4000T) were ever sold, it is estimated that Commodore sold 200 A4000T, and the rest were sold by Escrom


  • Compatible with old Amigas (OCS & ECS)
  • 68030 at 25MHz or 68040 at 25MHz CPUs for the desktop A4000
  • 68040/68060 CPUs for the tower variant (A4000T)
  • 3.0/3.1 Amiga Operating System
  • GUI and preemptive multitasking / no-protected memory
  • AGA graphics (24-bit color / 16.8 million colors)
  • 4 PCM sound channels (27 kHz)
  • 2 MB Chip RAM, and up to 16 MB RAM on board, 128 MB RAM via the CPU, and more memory via Zorro III slots
  • 512 KB Kickstart ROM
  • 880K floppy disk drive (built-in)
  • Highly expandable computer (5 × Zorro III slots, 4 × 16-bit ISA slots, 2 × AGA video slots)
  • The SCSI of previous Amigas was replaced by the Parallel ATA


Amiga 4000 Desktop Models

There are two main desktops A4000 models:

  • A4000/040 with a Motorola 68040 CPU at 25MH, released in October 1992
  • A4000/030 with a Motorola 68EC030 at 25MH, released in April 1993

Amiga 4000 Tower

Released in 1994, the Amiga 4000 tower is featuring a 68040 or a 68060 CPU.

The Amiga 4000T was originally released by Commodore with a 25 MHz Motorola 68040 CPU. Later, in 1995, it was upgraded and re-released in greater numbers by Escom. The Escrom A4000T features a 50 MHz Motorola 68060 CPU. The Escrom Amiga 4000T was in production until 1997.

  • Can have 16 MB of RAM on the motherboard, up to 128 MB of RAM on CPU boards, and more RAM on Zorro cards
  • Offers 2 Video Slots, 5 Zorro III slots, and 4 ISA slots
  • The A4000 tower is the only Amiga to have (built-in) on the motherboard both SCSI and IDE interfaces
  • Can accommodate up to 6 drives


Colors & Graphic Modes

Amiga 4000 TowerThe A4000 features 24-bit graphics via the Commodore's Advanced Graphics Architecture (AGA) chipset. The computer offers the same graphic modes as the CD32 console and the A1200 computer.

  • 24-bit (16.8 million colors), up to 256 on-screen colors
  • 262,144 on-screen colors in HAM-8 mode
  • Resolutions from: 320×200 to 1504x576 overscan (PAL)
  • Improved hardware sprites and scrolling compared to OCS/ECS Amigas


  • 320×200 to 1280×400, 1504x484 overscan (NTSC)
  • 320×256 to 1280×512, 1504x576 overscan (PAL)
  • 640×480 (VGA)


Sound Capabilities

A4000 offers the same sound chipset as other Amigas.

  • 2 stereo channels (4 × 8-bit PCM)
  • 28 kHz DMA sampling rate, and up to 57 kHz
  • The hardware channels have independent volumes (65 levels)
  • Software controllable low-pass audio filter


NASA used the Amiga 4000... that particular was used for Video TitlingI/O Ports

  • 2 × Mouse/Gamepad 9-pin ports
  • Keyboard (5-pin DIN)
  • RGB monitor output (DB-23M)
  • Audio out Left & Right (2 × RCA)
  • Audio out (3.5mm headphone jack)
  • Standard 25-pin RS-232 serial port (DB-25M)
  • Centronics style parallel port (DB-25F)
  • Fast SCSI-2 (D-High density DB-50F)

Expansions Slots

  • 5 × Zorro III slots (100pin, 32-bit)
  • 4 × 16-bit ISA slots (require bridgeboard)
  • 2 × AGA video slots
  • 1 × CPU expansion slot (200-pin)
  • 4 × SIMM slots (72-pin)



 A4000 can be connected to TVs, RGB monitors, 15-kHz VGA monitors, or even modern HDMI monitors with the right video upscaling hardware.

  • Commodore monitors (1084, 1942, etc.)
  • Other RGB monitors (Philips CM 8833, etc.)
  • 15 kHz VGA monitors with an RGB to VGA adapter (monitors such as the BenQ) 
  • TVs via SCART cable (RGB to SCART cable)
  • Modern VGA/HDMI monitors via video upscaling hardware


Expansions & Upgrades

By adding an 8MB Fast RAM and an SD card hard drive you can use the Amiga WHDload software. WHDload enables access to thousands of Amiga games and apps.

  • 68040/68060 accelerators for desktop models
  • Graphic cards (Picasso IV, ZZ9000)
  • Indivision AGA flicker fixer (improves VGA output)
  • Audio cards (Prisma Megamix, ZZ9000AX, SoundBlaster, etc.)
  • Network cards
  • On-board IBM-PC-compatible hardware emulation (80286/80386 or 80486)
  • The iconic Video Toaster
  • Internal CD-ROM drive
  • Internal Gotek drive
  • Internal ZIP drive


■ Amiga 4000

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