Intel Xeon E5 1660 's Advantages
Higher base frequency (3.3GHz vs 2.3GHz)
Lower TDP (130W vs 320W)
AMD EPYC 9645 's Advantages
Released 12 years and 7 months late
Higher specification of memory (6000 vs 3)
Newer PCIe version (5 vs 3)
Larger L3 cache size (256MB vs 15MB)
More modern manufacturing process (3nm vs 32nm)