AMD EPYC 7773X 's Advantages
Released 12 years late
Higher specification of memory (3200 vs 1333)
Newer PCIe version (4 vs 2)
Larger L3 cache size (768MB vs 18MB)
More modern manufacturing process (7nm vs 45nm)
Xeon X7542 's Advantages
Higher base frequency (2.666GHz vs 2.2GHz)
Lower TDP (130W vs 280W)