Intel Xeon E3 1220 v5 's Advantages
Released 3 years and 5 months late
Higher specification of memory (2133 vs 3)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (80W vs 87W)
Intel Xeon E3 1290 v2 's Advantages
Higher base frequency (3.7GHz vs 3GHz)