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> why? As I understand it 256 bit avx has been standard on x86 CPUs for generations. The Atom-derived cores did not support AVX for quite a long time. Even the
by aleph_minus_one 3y ago
> why? As I understand it 256 bit avx has been standard on x86 CPUs for generations.
The Atom-derived cores did not support AVX for quite a long time. Even the Tremont microarchitecture (i.e. Elkhart Lake launched in September 2020 and Jasper Lake launched January 2021) does not support AVX. Only from the Gracemont microarchitecture on (launched in November 2021), there exist Intel Atom processors that support AVX/AVX2.
- Am4TIfIsER0ppos 3y agoAVX was also unavailable on Pentium and Celeron branded processors but I think that has changed.
- aleph_minus_one 3y agoThese are based on the same microarchitecture as the Atom cores, so it was also a problem up to Tremont. With the Gracemont microarchitecture, this "principally" changed, but until now Intel has not announced any processor of this microarchitecture that it branded "Pentium" or "Celeron": > https://en.wikipedia.org/w/index.php?title=Gracemont_(microarchitecture)&oldid=1170238307 https://en.wikipedia.org/w/index.php?title=Gracemont_(microa...
- Am4TIfIsER0ppos 3y agoAre they? (Were they?) I assumed they were the main Core architecture just with features removed, either by design or after production.
- RaisingSpear 3y agoBoth are true. Some Atom line processors were branded Pentium/Celeron. The low end big core SKUs were also branded Pentium/Celeron (and often had features disabled).