Intel Xeon E5 2670 v2 's Advantages
Higher base frequency (2.5GHz vs 2GHz)
Larger L3 cache size (25MB vs 6MB)
Intel Xeon E3 1278L v4 's Advantages
Released 1 years and 9 months late
Higher specification of memory (1600 vs 3)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (47W vs 115W)