AMD Ryzen 5 1400's Advantages
Higher base frequency (3.2GHz vs 2.4GHz)
Intel Core i9 12900's Advantages
Released 4 years and 9 months late
Higher specification of memory (DDR5-4800 vs DDR4-2666)
Larger memory bandwidth (76.8GB/s vs 39.74GB/s)
Newer PCIe version (5 vs 3.0)
Larger L3 cache size (30MB vs 8MB)