Intel Core i9 12900 's Advantages
Released 4 years and 8 months late
Higher specification of memory (DDR5-4800 vs DDR4-2666)
Larger memory bandwidth (76.8GB/s vs 42.7GB/s)
Newer PCIe version (5 vs 3.0)
Larger L3 cache size (30MB vs 6MB)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (65W vs 112W)
Intel Core i5 7640X 's Advantages
Higher base frequency (4.0GHz vs 2.4GHz)