Intel Core i5 14400T 's Advantages
Lower TDP (35W vs 65W)
Intel Core i9 14900 's Advantages
Integrated graphics card
Higher specification of memory (5600 vs 4800)
Larger memory bandwidth (89.6GB/s vs 76.8GB/s)
Newer PCIe version (5.0 vs 5)
Higher base frequency (2.0GHz vs 1.5GHz)
Larger L3 cache size (36MB vs 20MB)