Intel Xeon E5 1660 's Advantages
Higher base frequency (3.3GHz vs 2.8GHz)
Lower TDP (130W vs 225W)
AMD EPYC 7543 '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)