AMD Ryzen 3 4100 's Advantages
Released 4 years and 9 months late
Higher specification of memory (DDR4-3200 vs DDR4-2666)
Higher base frequency (3.8GHz vs 3.1GHz)
More modern manufacturing process (7nm vs 14nm)
AMD Ryzen 3 1200 's Advantages
Newer PCIe version (3.0 vs 3)
Larger L3 cache size (8MB vs 4MB)