Intel Xeon E7 8891 v3 's Advantages
Larger L3 cache size (45MB vs 8.25MB)
Intel Xeon W 2135 's Advantages
Released 2 years and 2 months late
Higher specification of memory (2666 vs 1866)
Higher base frequency (3.7GHz vs 2.8GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (140W vs 165W)