Intel Xeon E5 2637 v3 's Advantages
Higher base frequency (3.5GHz vs 2.5GHz)
Lower TDP (135W vs 140W)
Intel Xeon W 2170B 's Advantages
Released 3 years and 3 months late
Higher specification of memory (2666 vs 2133)
Larger L3 cache size (19.25MB vs 15MB)
More modern manufacturing process (14nm vs 22nm)