Intel Xeon E5 1603 v3 's Advantages
Higher base frequency (2.8GHz vs 2.5GHz)
Lower TDP (140W vs 270W)
Intel Xeon W 3375 's Advantages
Released 6 years and 10 months late
Higher specification of memory (3200 vs 1866)
Newer PCIe version (4 vs 3)
Larger L3 cache size (57MB vs 10MB)
More modern manufacturing process (10nm vs 22nm)