Intel Xeon E5 4620 v3 's Advantages
Released 3 years and 3 months late
Higher specification of memory (DDR4-1866 vs DDR3)
Larger L3 cache size (25MB vs 15MB)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (105W vs 130W)
Intel Xeon E5 2667 's Advantages
Higher base frequency (2.9GHz vs 2GHz)