Comment by pixl97
12 hours ago
How about change that to "Anything with more than 6 cores". Anything with 4 cores only has one speed of core. At 6 cores it more of a mixed bag, some have all the same cores, some have a split of performance and efficient cores. Anything over an i5 will have E cores.
Hmm, I think Granite Rapids is all P-Cores and goes up to 86 cores (172 threads):
https://en.wikipedia.org/wiki/Granite_Rapids
Yep, there are still server CPUs with only P-cores.
They are a bit expensive but I wouldn't expect them to drop these skews in the long term for HPC & compute bound workloads. My guess is that diamond rapids will also have some P-skews and maybe AP skews.
Here there's weirdness, still, though because there's such a frequency difference you'll get between "low priority" and "high priority" cores.