Intel Xeon E5 2687W 's Advantages
Higher base frequency (3.1GHz vs 2.5GHz)
Larger L3 cache size (20MB vs 19.25MB)
Intel Xeon W 2170B 's Advantages
Released 5 years and 9 months late
Higher specification of memory (2666 vs 3)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (140W vs 150W)