Intel Xeon E5 1603 v3 's Advantages
Lower TDP (140W vs 270W)
Intel Xeon w5 3435X 's Advantages
Released 8 years and 5 months late
Higher specification of memory (4800 vs 1866)
Newer PCIe version (5 vs 3)
Higher base frequency (3.1GHz vs 2.8GHz)
Larger L3 cache size (45MB vs 10MB)
More modern manufacturing process (10nm vs 22nm)