Xeon E 2456 's Advantages
Released 8 years and 6 months late
Higher specification of memory (4800 vs 1866)
Newer PCIe version (5 vs 3)
Higher base frequency (3.3GHz vs 3GHz)
Larger L3 cache size (18MB vs 6MB)
More modern manufacturing process (10nm vs 14nm)
Intel Xeon E3 1270L v4 's Advantages
Lower TDP (45W vs 80W)