Intel Core i9 12900HX 's Advantages
Integrated graphics card
Newer PCIe version (5.0 vs 4)
Higher base frequency (2.3GHz vs 1.5GHz)
Larger L3 cache size (30MB vs 10MB)
Intel Core Ultra 5 115U 's Advantages
Released 1 years and 7 months late
Higher specification of memory (7467 vs 4800)
Larger memory bandwidth (120GB/s vs 76.8GB/s)
More modern manufacturing process (7nm vs 10nm)
Lower TDP (15W vs 55W)