AMD Ryzen 3 5425U 's Advantages
Lower TDP (25W vs 120W)
AMD Ryzen 9 9900X 's Advantages
Released 2 years and 5 months late
Higher specification of memory (5600 vs 4267)
Larger memory bandwidth (89.6GB/s vs 51.2GB/s)
Newer PCIe version (5.0 vs 3.0)
Higher base frequency (4.4GHz vs 2.7GHz)
Larger L3 cache size (64MB vs 8MB)
More modern manufacturing process (4nm vs 7nm)