Intel Xeon E5 2667 v2 's Advantages
Released 2 years and 5 months late
Higher base frequency (3.3GHz vs 2GHz)
Larger L3 cache size (20MB vs 18MB)
More modern manufacturing process (22nm vs 32nm)
Xeon E7 4820 's Advantages
Higher specification of memory (1333 vs 3)
Lower TDP (105W vs 130W)