Aside from 68K stuff, some of my intended #retrocomputing projects with PGA chips include the Intel Pentium 60/66 (original 5V version), i860, i960, and Motorola MC88110.
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i960 CPU transistor layout. Lot's of space dedicated to caches (about 1/3 of the chip)

« It's impossible to build cheap RISC systems, because you need such a large cache," says Hime. "Current memory technology can't keep up with RISC instruction cycles. »
[*] director of workstation products @Sun Micro.
#SPARC #VAX #VAX11 #retrocomputing #VintageComputing #MIPS #i960

i960 processor on 700/RX motherboard.

Speaking of HP 700/RX, its processor is a bit on the unusual side - Intel i960 running on 25 Mhz. i960 is more common on the embedded systems but never was popular processor on the desktop.
#intel #i960 #risc #hp #hp700rx