Edit:
Oops! I assumed he was talking about today's round of benchmarks! My comments were written against
this Phoronix article:
A key detail of these benchmarks is that all instances had SMT disabled. I thought it was impressive to see the (lower-clocked?) Graviton 4 manage a few decisive victories over EPYC (both with the same core count). If you excluded the benchmarks where AVX-512 plays a significant role, I think the results would've tipped even more in Graviton 4's favor.
It's great to see Emerald Rapids and Sierra Forest in the mix, even with the former competing at a core-count disadvantage (and the latter obviously leaning far in the opposite direction, with 144 E-cores).
BTW, the author (Anton) neglected to mention the final Geomean, which went 21.3% in favor of EPYC 9684X. The EPYC 9654 even beat it by 11.5%.
Regarding the Phoronix tests actually discussed in the article, I have only two observations I'd like to note:
- The Intel CPU (Sapphire Rapids Xeon 8488C) was the only processor with SMT/Hyperthreading enabled, putting it at a substantial disadvantage.
- The Geomean of EPYC 9R14 was 24.9% greater than that of the Graviton 4, which is a much better win for AMD at 64 cores than the 11.5% they managed with the non-X3D 96-core CPU (above).