Nvidia's RTX 4090 (Laptop) is the unquestionable champion as AMD keeps paying more attention to the desktop segment. The fastest graphics card for laptops from AMD was only good for the 3rd place in our little list.https://www.notebookcheck.net/3-fastest-graphics-cards-for-a-gaming-laptop-in-mid-2023.737700.0.html
But GPU's are not only used for gaming these days.