Intel Xeon E5 2420 v2 's Advantages
Lower TDP (80W vs 140W)
Intel Xeon W 2175 's Advantages
Released 4 years and 1 months late
Higher specification of memory (2666 vs 3)
Higher base frequency (2.5GHz vs 2.2GHz)
Larger L3 cache size (19.25MB vs 15MB)
More modern manufacturing process (14nm vs 22nm)