Intel Core i7 8665U 's Advantages
Lower TDP (15W vs 35W)
AMD Ryzen 9 5900HS 's Advantages
Released 1 years and 9 months late
Higher specification of memory (4266 vs 2400)
Larger memory bandwidth (51.2GB/s vs 37.5GB/s)
Higher base frequency (3.0GHz vs 1.9GHz)
Larger L3 cache size (16MB vs 8MB)
More modern manufacturing process (7nm vs 14nm)