AMD EPYC 7343 's Advantages
Released 12 years late
Higher specification of memory (3200 vs 1066)
Newer PCIe version (4 vs 2)
Higher base frequency (3.2GHz vs 2.533GHz)
Larger L3 cache size (128MB vs 8MB)
More modern manufacturing process (7nm vs 45nm)
Xeon E5540 's Advantages
Lower TDP (80W vs 190W)