Intel Core i5 8257U 's Advantages
Released 6 months late
Larger memory bandwidth (37.5GB/s vs 35.76GB/s)
Larger L3 cache size (6MB vs 4MB)
Lower TDP (15W vs 35W)
AMD Ryzen 3 3300U 's Advantages
Better graphics card performance
Higher specification of memory (2400 vs 2400)
Higher base frequency (2.1GHz vs 1.4GHz)
More modern manufacturing process (12nm vs 14nm)