Intel Xeon E3 1278L v4 's Advantages
Released 1 years and 9 months late
More modern manufacturing process (14nm vs 22nm)
Lower TDP (47W vs 130W)
Intel Xeon E5 1607 v2 's Advantages
Higher base frequency (3GHz vs 2GHz)
Larger L3 cache size (10MB vs 6MB)