Intel Xeon E5 1620 v2 's Advantages
Higher base frequency (3.7GHz vs 2.3GHz)
Lower TDP (130W vs 140W)
Intel Xeon W 2195 's Advantages
Released 3 years and 11 months late
Higher specification of memory (2666 vs 1866)
Larger L3 cache size (24.75MB vs 10MB)
More modern manufacturing process (14nm vs 22nm)