Stockfish parallelizes well and makes heavy use of vector operations, and the Zen5 core has AVX-512 with 4x 512bit° EU per core and 16 cores, while the Apple still only uses 128-bit wide SIMD, with the 6 M5 "Super" cores having 4x128 EUs and the 12 "Performance" cores only having 2x128 EUs.

The M5 Pro is doing shockingly well given the massive disparity in execution resources. But still, it's optimized for web/desktop-like loads, you shouldn't really run heavy number crunching on that CPU.

0: 2x FMA/MUL + 2X ADD

> I have absolutely no idea what this is benchmarking or how

It's the best chess engine used by millions of people and part of SPEC2026, natively compiled