Intel Xeon W 2140B 's Advantages
Released 4 years and 3 months late
Higher specification of memory (DDR4-2666 vs DDR3)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (120W vs 130W)
Intel Xeon E5 2667 v2 's Advantages
Higher base frequency (3.3GHz vs 3.2GHz)
Larger L3 cache size (20MB vs 11MB)