Intel Xeon W 2191B 's Advantages
Released 4 years and 3 months late
Higher specification of memory (2666 vs 1866)
More modern manufacturing process (14nm vs 22nm)
Intel Xeon E5 1680 v2 's Advantages
Higher base frequency (3GHz vs 2.3GHz)
Larger L3 cache size (25MB vs 24.75MB)
Lower TDP (130W vs 140W)