AMD EPYC 9015 's Advantages
Released 10 months late
Higher specification of memory (6000 vs 4800)
Higher base frequency (3.6GHz vs 3.3GHz)
Larger L3 cache size (64MB vs 18MB)
More modern manufacturing process (4nm vs 10nm)
Xeon E 2456 's Advantages
Lower TDP (80W vs 125W)