Intel Xeon E5 1620 v3 's Advantages
Larger L3 cache size (10MB vs 8.25MB)
Intel Xeon W 2125 's Advantages
Released 2 years and 11 months late
Higher specification of memory (2666 vs 2133)
Higher base frequency (4GHz vs 3.5GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (120W vs 140W)