Intel Core i7 8850H 's Advantages
Higher base frequency (2.6GHz vs 2.4GHz)
Intel Core i7 12800H 's Advantages
Released 3 years and 9 months late
Better graphics card performance
Higher specification of memory (5200 vs 2666)
Larger memory bandwidth (76.8GB/s vs 42.7GB/s)
Newer PCIe version (4.0 vs 3.0)
Larger L3 cache size (24MB vs 9MB)
More modern manufacturing process (10nm vs 14nm)