Y-Cruncher is a multi-threaded Pi calculation benchmark. Its author, Alexander Yee, has access to an AMD Ryzen 9 7950X 16-core/32-thread sample, and has developed the latest version 0.7.10 of the Y-Cruncher binary with optimization for the "Zen 4" microarchitecture, and to take advantage of the AVX-512 instruction-set on these chips. Without disclosing the juicy performance numbers obtained in his testing, Yee posted a screenshot of Y-cruncher with the 7950X, on a machine with Windows 11 22Hx, and 64 GB of memory. You know it's optimized, since the multi-core efficiency is as high as 98% (all threads are being saturated with the Pi calculation workload).