Intel Core i5 8259U 's Advantages
Lower TDP (28W vs 35W)
AMD Ryzen 9 6900HS 's Advantages
Released 3 years and 9 months late
Better graphics card performance
Higher specification of memory (LPDDR5-6400 vs DDR4-2400)
Larger memory bandwidth (76.8GB/s vs 37.5GB/s)
Newer PCIe version (4.0 vs 3.0)
Higher base frequency (3.3GHz vs 2.3GHz)
Larger L3 cache size (16MB vs 6MB)