AMD Ryzen 5 2600X's Advantages
Higher base frequency (3.6GHz vs 3.5GHz)
Lower TDP (95W vs 280W)
AMD Ryzen Threadripper Pro 3975WX's Advantages
Released 2 years and 3 months late
Higher specification of memory (DDR4-3200 vs DDR4-2933)
Larger memory bandwidth (204.8GB/s vs 43.71GB/s)
Newer PCIe version (4.0 vs 3.0)
Larger L3 cache size (128MB vs 16MB)
More modern manufacturing process (7nm vs 12nm)