It's worth spending a bit more on the G512LW not just for its 2x faster graphics performance, but also for its significantly better display. The ghosting and poor colors on the G512LI display are disappointing for a dedicated gaming laptop.
https://www.notebookcheck.net/Asus-ROG-Strix-G15-G512LW-fixes-the-biggest-problem-we-have-with-the-ROG-Strix-G15-G512LI.502218.0.html