AMD EPYC 7643P 's Advantages
Higher base frequency (2.3GHz vs 2GHz)
Larger L3 cache size (256MB vs 64MB)
AMD EPYC 8124PN 's Advantages
Higher specification of memory (4800 vs 3200)
Newer PCIe version (5 vs 4)
More modern manufacturing process (5nm vs 7nm)
Lower TDP (100W vs 225W)