Intel Core i5 7400 's Advantages
Higher base frequency (3.0GHz vs 2GHz)
Intel Core i5 12500T '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 (18MB vs 6MB)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (35W vs 65W)