Phoronix published a review on the 3rd generation AMD EPYC 7003 "Milan" CPUs running on Linux.

AMD EPYC 7003 "Milan" Linux Benchmarks - Superb Performance Review

It's been one and a half years already since the EPYC 7002 "Rome" processors launched. It's hard to think it's been that long due not only to the pandemic but the incredible performance of these Zen 2 server processors. The EPYC 7002 series continues to largely outperform Intel's Xeon Scalable processors and while Ice Lake is coming soon, for now AMD is expanding their lead with today's EPYC 7003 "Milan" processor launch. We have begun our testing of AMD EPYC Milan processors in recent weeks under Linux and have preliminary performance figures to share today as well as more information on these next-gen server/HPC processors.

AMD EPYC 7003 "Milan" Linux Benchmarks - Superb Performance Review - Phoronix