I wish comparison was made with the same laptop chassis. Neo 16 with the same config, except CPU. 5% gaming difference in 1k-4K resolutions could point to laptop difference, not CPU difference. I would expect significantly more difference at 1k as opposed to 4k if the CPU was faster.
So one ... erm, "good"... thing about the 5090M really being a desktop 5070Ti is that it limits gaming to the point any flavour of R9 or U9 is going to perform almost identically?...
Avoiding the P core vs E core scheduling issues on this 13900HX would have me favour the R9, if pricing and availability aren't as much an issue they have been with Ryzen laptops for the past 2+ years... But right now it's looking even worse 🤬
Together with the new RTX 5000 laptop GPUs, the new HX CPUs from AMD and Intel have arrived as well. We compare the AMD Ryzen 9 9955HX with the Intel Core Ultra 9 275HX and compare not only the pure CPU performance but also the gaming performance in conjunction with the new RTX 5090 Laptop GPU.