AMD Ryzen 5 3600 's Advantages
Newer PCIe version (4.0 vs 3.0)
Higher base frequency (3.6GHz vs 2.7GHz)
Larger L3 cache size (32MB vs 8MB)
AMD Ryzen 3 5425U 's Advantages
Released 2 years and 6 months late
Integrated graphics card
Higher specification of memory (4267 vs 3200)
Lower TDP (25W vs 65W)