Intel Xeon E5503 's Advantages
Lower TDP (80W vs 400W)
AMD EPYC 9565 's Advantages
Released 14 years and 7 months late
Higher specification of memory (6000 vs 3)
Newer PCIe version (5 vs 2)
Higher base frequency (3.15GHz vs 2GHz)
Larger L3 cache size (384MB vs 4MB)
More modern manufacturing process (4nm vs 45nm)