AMD EPYC 9734 's Advantages
Released 3 years and 9 months late
Higher specification of memory (4800 vs 3200)
Newer PCIe version (5 vs 4)
More modern manufacturing process (5nm vs 7nm)
AMD EPYC 7H12 's Advantages
Higher base frequency (2.6GHz vs 2.2GHz)
Lower TDP (280W vs 340W)