AMD Ryzen 5 2600X 's Advantages
Higher base frequency (3.6GHz vs 3.5GHz)
Lower TDP (95W vs 105W)
AMD Ryzen 9 3950X 's Advantages
Released 1 years and 7 months late
Higher specification of memory (3200 vs 2933)
Larger memory bandwidth (47.68GB/s vs 43.71GB/s)
Newer PCIe version (4.0 vs 3.0)
Larger L3 cache size (64MB vs 16MB)
More modern manufacturing process (7nm vs 12nm)