Intel Xeon E3 1220 v2 's Advantages
Lower TDP (69W vs 80W)
Intel Xeon E3 1240 v5 's Advantages
Released 3 years and 5 months late
Higher specification of memory (2133 vs 3)
Higher base frequency (3.5GHz vs 3.1GHz)
More modern manufacturing process (14nm vs 22nm)