Intel Core i7 8665U 's Advantages
Lower TDP (15W vs 54W)
AMD Ryzen 7 4800HS 's Advantages
Released 11 months late
Better graphics card performance
Higher specification of memory (4266 vs 2400)
Larger memory bandwidth (68.27GB/s vs 37.5GB/s)
Higher base frequency (2.9GHz vs 1.9GHz)
More modern manufacturing process (7nm vs 14nm)