AMD EPYC 7451 's Advantages
Lower TDP (180W vs 350W)
AMD Threadripper PRO 7975WX 's Advantages
Released 6 years and 4 months late
Higher specification of memory (5200 vs 2666)
Newer PCIe version (5 vs 3)
Higher base frequency (4GHz vs 2.3GHz)
Larger L3 cache size (128MB vs 64MB)
More modern manufacturing process (5nm vs 14nm)