Intel Xeon E5 4603 's Advantages
Lower TDP (95W vs 200W)
Intel Xeon w5 2455X 's Advantages
Released 10 years and 9 months late
Higher specification of memory (4800 vs 3)
Newer PCIe version (5 vs 3)
Higher base frequency (3.2GHz vs 2GHz)
Larger L3 cache size (30MB vs 10MB)
More modern manufacturing process (10nm vs 32nm)