Intel Core i7 12800HX 's Advantages
Released 2 years and 10 months late
Higher specification of memory (4800 vs 2400)
Larger memory bandwidth (76.8GB/s vs 37.5GB/s)
Newer PCIe version (5.0 vs 3.0)
Higher base frequency (2.0GHz vs 1.4GHz)
Larger L3 cache size (25MB vs 6MB)
More modern manufacturing process (10nm vs 14nm)
Intel Core i5 8257U 's Advantages
Better graphics card performance
Lower TDP (15W vs 55W)