Re:Arm Announces New Mobile Armv9 CPU Microarchitectures
by api on Tuesday May 25, 2021 @11:50AM
(#27278392)
Everything I've heard says it's an M1 with more performance cores and possibly more cache and GPU cores. It seems awfully soon for it to be V9.
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Re:Arm Announces New Mobile Armv9 CPU Microarchitectures
by arnd on Wednesday May 26, 2021 @05:08AM
(#27288078)
M1 is Armv8.5-A, which is almost the same as Armv9.0-A, except that it lacks SVE2 vector instructions. Apple's CPUs tend to move to the latest architecture revision that is available at the time the instruction set gets nailed down, so the next generation (M2 and A15) would be Armv8.6-A if it lacks SVE2, or Armv9.1-A if it includes it.
Most likely the M2/A15 will include SVE2 but won't be available for another six months, while the M1+ in the coming Macbook Pro would still be Armv8.5-A.