Intel Core i3 7020U 's Advantages
Higher base frequency (2.3GHz vs 2.0GHz)
Lower TDP (15W vs 45W)
Intel Core i7 12800HX 's Advantages
Released 4 years and 1 months late
Better graphics card performance
Higher specification of memory (DDR5-4800 vs DDR4-2133)
Larger memory bandwidth (76.8GB/s vs 34.1GB/s)
Newer PCIe version (5.0 vs 3.0)
Larger L3 cache size (25MB vs 3MB)
More modern manufacturing process (10nm vs 14nm)