Intel Xeon W 2191B 's Advantages
Released 6 years and 8 months late
Higher specification of memory (2666 vs 1333)
Higher base frequency (2.3GHz vs 2GHz)
Larger L3 cache size (24.75MB vs 24MB)
More modern manufacturing process (14nm vs 32nm)
Xeon E7 4850 's Advantages
Lower TDP (130W vs 140W)