AMD Ryzen 9 3950X 's Advantages
Released 5 years and 10 months late
Higher specification of memory (3200 vs 1600)
Newer PCIe version (4.0 vs 3)
Higher base frequency (3.5GHz vs 2.6GHz)
Larger L3 cache size (64MB vs 6MB)
More modern manufacturing process (7nm vs 22nm)
Pentium 1403 V2 's Advantages
Lower TDP (80W vs 105W)