Intel Xeon E5 1607 v2 's Advantages
Higher base frequency (3GHz vs 2.3GHz)
Lower TDP (130W vs 140W)
Intel Xeon W 2191B 's Advantages
Released 4 years and 3 months late
Higher specification of memory (DDR4-2666 vs DDR3-1600)
Larger L3 cache size (24.75MB vs 10MB)
More modern manufacturing process (14nm vs 22nm)