Intel Xeon W 2191B 's Advantages
Released 3 years and 3 months late
Higher specification of memory (DDR4-2666 vs DDR4-2133)
More modern manufacturing process (14nm vs 22nm)
Intel Xeon E5 2690 v3 's Advantages
Higher base frequency (2.6GHz vs 2.3GHz)
Larger L3 cache size (30MB vs 24.75MB)
Lower TDP (135W vs 140W)