Intel Core i7 12850HX 's Advantages
Newer PCIe version (5.0 vs 4.0)
Larger L3 cache size (25MB vs 24MB)
Intel Core i9 12900HK 's Advantages
Better graphics card performance
Higher specification of memory (LPDDR5-5200 vs DDR5-4800)
Higher base frequency (2.5GHz vs 2.1GHz)
Lower TDP (35W vs 45W)