Intel Xeon E3 1220 v5 's Advantages
Released 3 years and 5 months late
More modern manufacturing process (14nm vs 22nm)
Lower TDP (80W vs 87W)
Intel Xeon E3 1290 v2 's Advantages
Higher specification of memory (DDR3 vs DDR3)
Higher base frequency (3.7GHz vs 3GHz)