Intel Core i9 12900 's Advantages
Released 1 years and 9 months late
Higher specification of memory (DDR5-4800 vs DDR4-3200)
Larger memory bandwidth (76.8GB/s vs 51.2GB/s)
Newer PCIe version (5 vs 4.0)
Larger L3 cache size (30MB vs 16MB)
AMD Ryzen 3 3100 's Advantages
Higher base frequency (3.6GHz vs 2.4GHz)