Intel Xeon E5 1660 's Advantages
Higher base frequency (3.3GHz vs 2.75GHz)
Lower TDP (130W vs 290W)
AMD EPYC Embedded 9454 's Advantages
Released 11 years late
Higher specification of memory (4800 vs 3)
Newer PCIe version (5 vs 3)
Larger L3 cache size (256MB vs 15MB)
More modern manufacturing process (5nm vs 32nm)