https://wccftech.com/amd-demos-3rd-gen-epyc-milan-32-core-cpus-up-to-68-faster-than-intel-xeon/

During its CES 2021 keynote, AMD demonstrated the performance of its 3rd Generation EPYC Milan CPUs based on the Zen 3 core architecture versus Intel's Xeon chips based on the Cascade Lake design. The performance was demoed in WRF which is a climate research and weather forecast tool used by HPC to simulate weather and is used by 185 countries for that specific purpose.

AMD's CEO stated that the two Intel Xeon Gold 6258R CPUs they pitted against their own EPYC Milan CPUs are comparably configured. We know that the Xeon Gold 6258R features a total of 28 cores and 56 threads and has a boost clock of up to 4.00 GHz. It comes with a TDP of 205W and priced at $3950 US. No specifications for the 3rd Gen EPYC Milan CPU which was tested were listed aside from their core count which is 32 cores and 64 threads.