League of Legends like Hearthstone was more than happy to run at this laptop's native resolution, performing at the full 3200 x 1800, with all settings on high (apart from shadows: medium), vertical sync but no AA.
Results were taken using FRAPS throughout several standard games of ARAM, since those tend to have the most graphical effects on screen at once.
Partly as testament to the coding of the guys behind LoL and to the XPS' abilities, it maintained above 30 FPS even during the most hectic 5vs5 matchups and regularly almost hit 60FPS. This laptop is a perfect contender for a LoL gaming notebook.
This Dell XPS is so cool