Intel Xeon E5 2670 v3 's Advantages
Larger L3 cache size (30MB vs 8.25MB)
Lower TDP (120W vs 140W)
Intel Xeon W 2135 's Advantages
Released 2 years and 11 months late
Higher specification of memory (2666 vs 2133)
Higher base frequency (3.7GHz vs 2.3GHz)
More modern manufacturing process (14nm vs 22nm)