Xeon E5540 's Advantages
Lower TDP (80W vs 200W)
AMD EPYC 7443P 's Advantages
Released 12 years late
Higher specification of memory (3200 vs 1066)
Newer PCIe version (4 vs 2)
Higher base frequency (2.85GHz vs 2.533GHz)
Larger L3 cache size (128MB vs 8MB)
More modern manufacturing process (7nm vs 45nm)