Intel Xeon W 2191B 's Advantages
Released 5 years and 7 months late
Higher specification of memory (2666 vs 3)
Higher base frequency (2.3GHz vs 2GHz)
Larger L3 cache size (24.75MB vs 8MB)
More modern manufacturing process (14nm vs 32nm)
Intel Xeon E3 1125C 's Advantages
Lower TDP (40W vs 140W)