Released 1988: The Amiga 2500, also known as the A2500, was not a brand new Amiga model, but an Amiga 2000 factory fitted with a Motorola 68020 or 68030 CPU card with 32 bit RAM, in addition to SCSI controller and hard drive. The original Amiga 2000 shipped with just a single floppy drive for storage. This was followed up fairly early by the Amiga 2000/HD, which bundled an A2090 hard drive controller and a SCSI hard drive. In 1988, Commodore shipped the Amiga 2500/20, which added the Amiga 2620 CPU card to the CPU slot. It contains an 14.3 MHz 68020, a 68881 FPU, and a 68851 MMU along with 2 MB of 32-bit memory. The A2000’s original 68000 CPU remained installed on the motherboard, but is not used. In 1989, the A2500/20 was replaced by the Amiga 2500/30, which came with the A2630 CPU card, 25 MHz 68030 and the 68882 FPU with up to 4 MB of 32-bit memory.
The accelerator cards (A2620 and A2630) were also available separately as upgrades for the Amiga 2000 or Amiga 2500/HD.
Because the Amiga 2500 has a Motorola 68000 on the motherboard that goes unused, the design is not very cost-effective. A project to replace it with a 68020 on-board began, intending to be a Zorro-II-based (16-bit expansion slots) 68020 machine, but the project eventually became the Amiga 3000 when Dave Haynie sought to include his new Zorro-III bus (32-bit expansion slots).
The A2500 remained in production after the release of the Amiga 3000, maybe because the original NewTek’s Video Toaster (video broadcast and editing hardware) will not fit in an unmodified Amiga 3000 case. According to ex. Commodore employees, they still sold big numbers after the release of the Amiga 3000, customers seemed to like the bigger housing of the A2500. Until the release of the Video Toaster 4000, the Amiga 2500 was the fastest computer available for use with the Video Toaster.
A variant of the A2500 called the A2500UX was also available, which was supplied with Commodore Amiga UNIX (Amix) and tape drive.