Integrated graphics in most ultraportables are not as useless as they once were. It is actually possible to game on an ultrabook, it's just a matter of choosing the game and its settings carefully. We've tested 34 games on a ThinkPad X1 Carbon to give you an idea of what games are actually playable on modern ultraportables.
https://www.techspot.com/article/1446-play-games-ultraportable-laptop/