Intel Core i5 8257U 's Advantages
Better graphics card performance
Larger L3 cache size (6MB vs 4MB)
AMD Ryzen 5 7520U 's Advantages
Released 3 years and 2 months late
Higher specification of memory (LPDDR5-5500 vs DDR4-2400)
Larger memory bandwidth (44.0GB/s vs 37.5GB/s)
Higher base frequency (2.8GHz vs 1.4GHz)