AMD EPYC 7402P 's Advantages
Lower TDP (180W vs 300W)
AMD EPYC 9455P 's Advantages
Released 5 years and 2 months late
Higher specification of memory (6000 vs 3200)
Newer PCIe version (5 vs 4)
Higher base frequency (3.15GHz vs 2.8GHz)
Larger L3 cache size (192MB vs 128MB)
More modern manufacturing process (4nm vs 7nm)