Intel Xeon E5503 's Advantages
Lower TDP (80W vs 180W)
AMD EPYC 72F3 's Advantages
Released 11 years late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 2)
Higher base frequency (3.7GHz vs 2GHz)
Larger L3 cache size (256MB vs 4MB)
More modern manufacturing process (7nm vs 45nm)