Opteron 6344 's Advantages
Lower TDP (115W vs 350W)
AMD Threadripper PRO 7975WX 's Advantages
Released 10 years and 11 months late
Higher specification of memory (5200 vs 1866)
Newer PCIe version (5 vs 2)
Higher base frequency (4GHz vs 2.6GHz)
Larger L3 cache size (128MB vs 8MB)
More modern manufacturing process (5nm vs 32nm)