Intel Xeon E5603 's Advantages
Lower TDP (80W vs 200W)
AMD EPYC 9135 's Advantages
Released 13 years and 8 months late
Higher specification of memory (6000 vs 3)
Newer PCIe version (5 vs 2)
Higher base frequency (3.65GHz vs 1.6GHz)
Larger L3 cache size (64MB vs 4MB)
More modern manufacturing process (4nm vs 32nm)