Intel Core i3 1215U 's Advantages
Better graphics card performance
Lower TDP (15W vs 55W)
Intel Core i9 13900HX 's Advantages
Released 11 months late
Higher specification of memory (5600 vs 5200)
Larger memory bandwidth (89.6GB/s vs 76.8GB/s)
Newer PCIe version (5.0 vs 4.0)
Higher base frequency (2.2GHz vs 1.2GHz)
Larger L3 cache size (36MB vs 10MB)