Xeon E 2456 's Advantages
Released 2 years and 8 months late
Higher specification of memory (DDR5-4800 vs DDR4-3200)
Newer PCIe version (5 vs 3)
Higher base frequency (3.3GHz vs 3.1GHz)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (80W vs 205W)
Intel Xeon Platinum 8354H 's Advantages
Larger L3 cache size (24.75MB vs 18MB)