Xeon E6540 's Advantages
Lower TDP (105W vs 240W)
AMD EPYC 7663P 's Advantages
Released 13 years and 6 months late
Higher specification of memory (3200 vs 1333)
Newer PCIe version (4 vs 2)
Larger L3 cache size (256MB vs 18MB)
More modern manufacturing process (7nm vs 45nm)