Intel Xeon E5 2686 v3 's Advantages
Larger L3 cache size (45MB vs 8.25MB)
Lower TDP (120W vs 140W)
Intel Xeon W 2133 's Advantages
Released 2 years and 11 months late
Higher specification of memory (2666 vs 2133)
Higher base frequency (3.6GHz vs 2GHz)
More modern manufacturing process (14nm vs 22nm)