Intel Xeon E5 2603 v3 's Advantages
Lower TDP (85W vs 270W)
Intel Xeon w5 3435X 's Advantages
Released 8 years and 5 months late
Higher specification of memory (4800 vs 1600)
Newer PCIe version (5 vs 3)
Higher base frequency (3.1GHz vs 1.6GHz)
Larger L3 cache size (45MB vs 15MB)
More modern manufacturing process (10nm vs 22nm)