description Amstrad CPC 664 Overview
The Amstrad CPC 664 is an 8-bit home computer introduced in 1985 as part of Amstrad's Colour Personal Computer range. It uses a Zilog Z80A processor and includes a built-in 3-inch floppy-disk drive, distinguishing it from the cassette-based CPC 464. Sold with either a color or monochrome monitor, it was intended for home computing, programming, education, and games.
help Amstrad CPC 664 FAQ
What does the Amstrad CPC 664 add over the CPC 464?
The CPC 664 replaces the CPC 464's cassette deck with a built-in 3-inch floppy drive while keeping the Z80A processor and 64 KB of RAM. It was introduced in 1985 as an intermediate model before the CPC 6128.
Can CPC 664 disks work with an Amstrad CPC 6128?
Both computers use Amstrad's 3-inch disk format and AMSDOS disk conventions, so many CPC disk programs are compatible between them. The CPC 6128 adds 128 KB of memory, but its disk-based software shares the same general ecosystem.
Why was the CPC 664 short-lived?
Amstrad introduced the CPC 664 in 1985 and soon followed it with the CPC 6128, which doubled the memory to 128 KB. That made the 664 a brief bridge between the cassette-based CPC 464 and the more capable 6128.
Can an Amstrad CPC 664 connect to a modern television?
The CPC 664 outputs RGB video for Amstrad's color or green-screen monitors rather than HDMI. A modern setup normally needs an RGB-to-HDMI converter and either original 3-inch disks or a compatible disk-image solution.
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