Intel Core i5 8265U 's Advantages
Lower TDP (15W vs 54W)
AMD Ryzen 9 5900HX 's Advantages
Released 2 years and 5 months late
Higher specification of memory (4266 vs 2400)
Larger memory bandwidth (68.27GB/s vs 37.5GB/s)
Higher base frequency (3.3GHz vs 1.6GHz)
Larger L3 cache size (16MB vs 6MB)
More modern manufacturing process (7nm vs 14nm)