AMD EPYC 7443P 's Advantages
Higher base frequency (2.85GHz vs 2.6GHz)
Lower TDP (200W vs 235W)
Xeon 6553P B 's Advantages
Released 3 years and 11 months late
Higher specification of memory (6400 vs 3200)
Newer PCIe version (5 vs 4)
Larger L3 cache size (144MB vs 128MB)
More modern manufacturing process (5nm vs 7nm)