Xeon E 2456 's Advantages
Released 13 years and 9 months late
Higher specification of memory (4800 vs 1333)
Newer PCIe version (5 vs 2)
Higher base frequency (3.3GHz vs 1.866GHz)
Larger L3 cache size (18MB vs 12MB)
More modern manufacturing process (10nm vs 45nm)
Lower TDP (80W vs 105W)