Intel Xeon W 2140B 's Advantages
Released 3 years and 3 months late
Higher specification of memory (DDR4-2666 vs DDR4-1866)
Higher base frequency (3.2GHz vs 2.4GHz)
More modern manufacturing process (14nm vs 22nm)
Intel Xeon E5 2620 v3 's Advantages
Larger L3 cache size (15MB vs 11MB)
Lower TDP (85W vs 120W)