Intel Xeon E5503 's Advantages
Lower TDP (80W vs 280W)
AMD EPYC 7763 's Advantages
Released 11 years late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 2)
Higher base frequency (2.45GHz vs 2GHz)
Larger L3 cache size (256MB vs 4MB)
More modern manufacturing process (7nm vs 45nm)