Intel Xeon E3 1220 v2 's Advantages
Released 1 years and 1 months late
Higher base frequency (3.1GHz vs 2.4GHz)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (69W vs 130W)
Xeon E7 4870 's Advantages
Higher specification of memory (1333 vs 3)
Larger L3 cache size (30MB vs 8MB)