Phoronix published 13-Way IBM POWER9 Talos II vs. Intel Xeon vs. AMD Linux Benchmarks
A quote from the article:
Back in April we were able to run some IBM POWER9 benchmarks with remote access to the open-source friendly Talos II systems by Raptor Computer Systems. We were recently allowed remote access again to a few different configurations of this libre hardware with three different POWER9 processor combinations. Here are those latest benchmarks compared to Intel Xeon and AMD EPYC server processors.13-Way IBM POWER9 Talos II vs. Intel Xeon vs. AMD Linux Benchmarks