Xeon Platinum 8270 's Advantages
Larger L3 cache size (35.75MB vs 18MB)
Xeon E 2456 's Advantages
Released 5 years late
Higher specification of memory (4800 vs 4)
Higher base frequency (3.3GHz vs 2.7GHz)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (80W vs 205W)