Intel Core i9 12900 's Advantages
Larger memory bandwidth (76.8GB/s vs 51.2GB/s)
Newer PCIe version (5 vs 3.0)
Larger L3 cache size (30MB vs 8MB)
AMD Ryzen 3 5425U 's Advantages
Integrated graphics card
Higher specification of memory (LPDDR4x-4267 vs DDR5-4800)
Higher base frequency (2.7GHz vs 2.4GHz)
Lower TDP (10W vs 65W)