== CPC464 Original version 1 (A and B) ==
[[Image:CPC464 pcb r1.jpg|200px]]
* Board: PT NO 270100 (this one is 270100, not Z70100), MC0001A, Copyright 1983
== CPC464 Revision 1 version 2 ==
* Board: PT NO Z70200, MC0002D, Copyright 1984
* Big mainboard, separate soldering points for old and new Gate Array (with changed pin-outs). Fragile plastic wires going to keyboard.
== CPC464 Revision 2 version 3 ==
* Board: PT NO Z70374, MC0044A
* Medium sized mainboard. Seems to be same as Revision 1, but components arranged more tightly.
== CPC464 Revision 3 version 4 (cost-down) ==
[[Image:CPC464 pcb r3.jpg|200px]]
* Tiny mainboard. Uses 100pin SMD Gate Array (combines the old Gate Array, CRTC, and some FDC/DRAM/RESET logic in one chip).
== CPC664 Original version? ==
[[File:CPC664 PCB Top.jpg|200px]]
* Board: PT NO Z70290, 94HB, R1706, Copyright 1985
== CPC6128 version 4 (cost-down) ==
* Board: PT NO Z80330 (1988)