AMD EPYC 9634 's Advantages
Released 1 years and 8 months late
Higher specification of memory (DDR5-4800 vs DDR4-3200)
Newer PCIe version (5 vs 4)
Larger L3 cache size (384MB vs 256MB)
More modern manufacturing process (5nm vs 7nm)
AMD EPYC 7543 's Advantages
Higher base frequency (2.8GHz vs 2.25GHz)
Lower TDP (225W vs 290W)