Intel Xeon E3 1220 v3 's Advantages
Lower TDP (80W vs 120W)
Intel Xeon W 2125 's Advantages
Released 4 years and 2 months late
Higher specification of memory (2666 vs 1600)
Higher base frequency (4GHz vs 3.1GHz)
Larger L3 cache size (8.25MB vs 8MB)
More modern manufacturing process (14nm vs 22nm)