AMD EPYC 9554 's Advantages
Released 2 years and 4 months late
Higher specification of memory (DDR5-4800 vs DDR4-3200)
Newer PCIe version (5 vs 4.0)
Larger L3 cache size (256MB vs 64MB)
More modern manufacturing process (5nm vs 7nm)
AMD Ryzen Threadripper Pro 3945WX 's Advantages
Higher base frequency (4.0GHz vs 3.1GHz)
Lower TDP (280W vs 360W)