Intel Xeon E5 2643 '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 10MB)
More modern manufacturing process (5nm vs 32nm)