Intel Xeon E5 2640 's Advantages
Higher base frequency (2.5GHz vs 2GHz)
Lower TDP (95W vs 240W)
AMD EPYC 7663 's Advantages
Released 9 years late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 3)
Larger L3 cache size (256MB vs 15MB)
More modern manufacturing process (7nm vs 32nm)