Intel Core i5 13420H 's Advantages
Newer PCIe version (5.0 vs 4.0)
Higher base frequency (2.1GHz vs 1.2GHz)
Larger L3 cache size (12MB vs 10MB)
Intel Core i3 1315U 's Advantages
Better graphics card performance
Higher specification of memory (LPDDR5x-6400 vs DDR5-5200)
Lower TDP (15W vs 35W)