They do still get around 60% speedup up according to phoronix https://www.phoronix.com/review/amd-zen4-avx512/6 https://www.phoronix.com/review/amd-zen4-avx512/

They do still get around 60% speedup up according to phoronix https://www.phoronix.com/review/amd-zen4-avx512/6 https://www.phoronix.com/review/amd-zen4-avx512/6 > On average for the tested AVX-512 workloads, making use of the AVX-512 instructions led to around 59% higher performance compared to when artificially limiting the Ryzen 9 7950X to AVX2 / no-AVX512.