Intel Xeon E3 1278L v4 's Advantages
More modern manufacturing process (14nm vs 22nm)
Lower TDP (47W vs 120W)
Intel Xeon E5 2669 v3 's Advantages
Higher specification of memory (2133 vs 1600)
Higher base frequency (2.3GHz vs 2GHz)
Larger L3 cache size (30MB vs 6MB)