One step below AMD's current top-end EPYC 7601 server processor is the EPYC 7551. The EPYC 7551 costs around $800 USD less than the 7601 while still being a 32 core / 64 thread part but with slightly lower clock frequencies. In this article is a look at the EPYC 7251 / 7351P / 7401P / 7551 / 7601 Ubuntu Linux performance compared to various Intel Xeon CPUs in our lab.