https://en.wikichip.org/wiki/amd/microarchitectures/zen_3 https://en.wikichip.org/wiki/amd/microarchitectures/zen_3 > 512 KiB per core, 8-way set associative

https://en.wikichip.org/wiki/amd/microarchitectures/zen_3 https://en.wikichip.org/wiki/amd/microarchitectures/zen_3 > 512 KiB per core, 8-way set associative So the 64 core 7763 / 7713 you are looking at 32 megabytes of L2. The 11/70 in 1975 already had 22 bit address space and like 10MB disks. So -- yes, it's not unlikely with a bit of hand crafting you could keep the whole shebang in L2 but you need a top end CPU.