Intel Xeon E3 1278L v4 's Advantages
Released 3 years and 1 months late
More modern manufacturing process (14nm vs 22nm)
Lower TDP (47W vs 87W)
Intel Xeon E3 1290 v2 's Advantages
Higher base frequency (3.7GHz vs 2GHz)
Larger L3 cache size (8MB vs 6MB)