Intel Xeon E5 4620 's Advantages
Lower TDP (130W vs 140W)
Intel Xeon W 2175 's Advantages
Released 5 years and 5 months late
Higher specification of memory (2666 vs 3)
Higher base frequency (2.5GHz vs 2.2GHz)
Larger L3 cache size (19.25MB vs 16MB)
More modern manufacturing process (14nm vs 32nm)