Intel Xeon E7 8850 's Advantages
Larger L3 cache size (30MB vs 24.75MB)
Lower TDP (130W vs 140W)
Intel Xeon W 2191B 's Advantages
Released 6 years and 8 months late
Higher specification of memory (2666 vs 3)
Higher base frequency (2.3GHz vs 2GHz)
More modern manufacturing process (14nm vs 32nm)