Intel Xeon E3 1220 v3 's Advantages
Released 1 years and 3 months late
Higher specification of memory (1600 vs 3)
Higher base frequency (3.1GHz vs 2.9GHz)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (80W vs 130W)
Intel Xeon E5 2667 's Advantages
Larger L3 cache size (15MB vs 8MB)