Intel Xeon E3 1220 v2 's Advantages
Higher base frequency (3.1GHz vs 2.9GHz)
Lower TDP (69W vs 120W)
Intel Xeon W 2102 's Advantages
Released 5 years and 3 months late
Higher specification of memory (2666 vs 3)
Larger L3 cache size (8.25MB vs 8MB)
More modern manufacturing process (14nm vs 22nm)