Intel Core i9 13900HX 's Advantages
Newer PCIe version (5.0 vs 4.0)
Higher base frequency (2.2GHz vs 1.6GHz)
Larger L3 cache size (36MB vs 12MB)
Intel Core i5 1345U 's Advantages
Better graphics card performance
Higher specification of memory (LPDDR5x-6400 vs DDR5-5600)
Lower TDP (12W vs 45W)