Intel Core i5 8257U 's Advantages
Better graphics card performance
Intel Core i5 10310U 's Advantages
Released 10 months late
Higher specification of memory (LPDDR4-2933 vs DDR4-2400)
Larger memory bandwidth (45.8GB/s vs 37.5GB/s)
Higher base frequency (2.2GHz vs 1.4GHz)
Lower TDP (10W vs 15W)