Anyone decapped an OCS chipset to see the die sizes and get some sexy images online?
Wikipedia says that an 8500 transistor chip (Z80) on 4um was 18mm^2 (just over 4mm by 4mm. The 8086 was a 3um chip and had 29,000 transistors on a slightly larger die. The 68000 was a 4um chip, but it looks like it had denser logic than the Z80, partially offsetting the extra transistor count (or it doesn't contain 68000 transistors).