Intel Xeon W 2140B 's Advantages
Released 3 years and 3 months late
Higher specification of memory (2666 vs 2133)
Higher base frequency (3.2GHz vs 2.8GHz)
More modern manufacturing process (14nm vs 22nm)
Intel Xeon E5 2663 v3 's Advantages
Larger L3 cache size (25MB vs 11MB)
Lower TDP (105W vs 120W)