AMD EPYC 9254 's Advantages
Higher base frequency (2.9GHz vs 2.4GHz)
Lower TDP (200W vs 400W)
AMD EPYC 9745 's Advantages
Released 1 years and 11 months late
Higher specification of memory (6000 vs 4800)
Larger L3 cache size (256MB vs 128MB)
More modern manufacturing process (3nm vs 5nm)