Intel Core i7 1280P 's Advantages
Released 2 years and 7 months late
Better graphics card performance
Higher specification of memory (5200 vs 2400)
Larger memory bandwidth (76.8GB/s vs 37.5GB/s)
Newer PCIe version (4.0 vs 3.0)
Higher base frequency (1.8GHz vs 1.4GHz)
Larger L3 cache size (24MB vs 6MB)
More modern manufacturing process (10nm vs 14nm)
Intel Core i5 8257U 's Advantages
Lower TDP (15W vs 28W)