Intel Xeon E3 1278L v4 's Advantages
Released 9 months late
Higher base frequency (2GHz vs 1.8GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (47W vs 75W)
Intel Xeon E5 2648L v3 's Advantages
Higher specification of memory (2133 vs 1600)
Larger L3 cache size (30MB vs 6MB)