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)
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)