An 8086 die photo with the locations of various ROMs and PLAs indicated.

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1. Ken Shirriff (kenshirriff@oldbytes.space)'s status on Sunday, 15-Jan-2023 04:14:44 JST Ken Shirriff

   in reply to

   Looking at all the ROMs and PLAs on the 8086 die finds 9659 vacant transistor sites. This boosts the transistor count from 19,618 "real" transistors to 29,277 "potential" transistors. So the published 29,000 number is right if you count "missing" transistors too.