AMD EPYC 7551 's Advantages
Lower TDP (180W vs 340W)
Xeon w9 3575X 's Advantages
Released 7 years and 2 months late
Higher specification of memory (4800 vs 2666)
Newer PCIe version (5 vs 3)
Higher base frequency (2.2GHz vs 2GHz)
Larger L3 cache size (97.5MB vs 64MB)
More modern manufacturing process (10nm vs 14nm)