Intel Core i9 12900T 's Advantages
Released 5 years late
Higher specification of memory (4800 vs 2400)
Larger memory bandwidth (76.8GB/s vs 35.76GB/s)
Newer PCIe version (5 vs 3.0)
Larger L3 cache size (30MB vs 3MB)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (35W vs 51W)
Intel Core i3 7100 's Advantages
Higher base frequency (3.9GHz vs 1.4GHz)