Intel Xeon E3 1278L v4 's Advantages
Released 3 years and 3 months late
Higher specification of memory (1600 vs 3)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (47W vs 130W)
Intel Xeon E5 2667 's Advantages
Higher base frequency (2.9GHz vs 2GHz)
Larger L3 cache size (15MB vs 6MB)