EPYC 7272 's Advantages
Higher base frequency (2.9GHz vs 1.9GHz)
Lower TDP (120W vs 250W)
Xeon 6766E 's Advantages
Released 4 years and 10 months late
Higher specification of memory (6400 vs 3200)
Newer PCIe version (5 vs 4)
Larger L3 cache size (108MB vs 64MB)
More modern manufacturing process (5nm vs 7nm)