Intel Core i5 8259U 's Advantages
Better graphics card performance
Lower TDP (28W vs 55W)
AMD Ryzen 9 7945HX3D 's Advantages
Released 5 years and 3 months late
Higher specification of memory (DDR5-5200 vs DDR4-2400)
Larger memory bandwidth (83.2GB/s vs 37.5GB/s)
Newer PCIe version (5 vs 3.0)
Larger L3 cache size (128MB vs 6MB)