Intel Xeon E5 1607 v3 's Advantages
Higher specification of memory (1866 vs 1600)
Higher base frequency (3.1GHz vs 2GHz)
Larger L3 cache size (10MB vs 6MB)
Intel Xeon E3 1278L v4 's Advantages
Released 9 months late
More modern manufacturing process (14nm vs 22nm)
Lower TDP (47W vs 140W)