Intel Core i7 14700's Advantages
Integrated graphics card
Higher specification of memory (DDR5-5600 vs DDR5-4800)
Larger memory bandwidth (89.6GB/s vs 76.8GB/s)
Higher base frequency (2.1GHz vs 1.5GHz)
Larger L3 cache size (33MB vs 20MB)
Intel Core i5 14400T's Advantages
Newer PCIe version (5 vs 5.0)
Lower TDP (35W vs 65W)