AMD Launches EPYC 9004 "Genoa" Processors - Up To 96 Cores, AVX-512, Incredible Performance

[brucethemoose]

Couldn't it be because RISC architectures like ARM don't benefit as much as x86 from SMT?

I wouldn't call ARM, especially ARMv9, "RISC" in comparison to x86 anymore.


Anyway, Broadcomm touted some significant benefits with 4-way SMT in their ARM server processors, but I suspect they canned them due to lack of interest rather than lack of performance. With Apple and such, I think its a design choice due to a number of factors more than a fundamental ISA issue.

[coder]

I wouldn't call ARM, especially ARMv9, "RISC" in comparison to x86 anymore.

Well, it still has fixed-size instruction words and is a register-to-register ISA, both of which remain true to the classic RISC orthodoxy.

I think we haven't seen a "pure" RISC CPU in a while, but there's no doubt AArch64 is a more RISCy ISA than x86-64.