AMD EPYC 7551 's Advantages
Lower TDP (180W vs 500W)
Xeon 6979P 's Advantages
Released 7 years and 3 months late
Higher specification of memory (8800 vs 2666)
Newer PCIe version (5 vs 3)
Higher base frequency (2.1GHz vs 2GHz)
Larger L3 cache size (504MB vs 64MB)
More modern manufacturing process (5nm vs 14nm)