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by chx 1809 days ago
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.