EPYC 7552 's Advantages
Larger L3 cache size (192MB vs 18MB)
More modern manufacturing process (7nm vs 10nm)
Xeon E 2456 's Advantages
Released 4 years and 4 months late
Higher specification of memory (4800 vs 3200)
Newer PCIe version (5 vs 4)
Higher base frequency (3.3GHz vs 2.2GHz)
Lower TDP (80W vs 200W)