Intel Core i3 1315U's Advantages
Lower TDP (15W vs 20W)
AMD Ryzen 7 8840HS's Advantages
Released 11 months late
Better graphics card performance
Higher specification of memory (LPDDR5x-7500 vs LPDDR5x-6400)
Larger memory bandwidth (89.6GB/s vs 76.8GB/s)
Higher base frequency (3.3GHz vs 1.2GHz)
Larger L3 cache size (16MB vs 10MB)