YOU KNOW the feeling—you’ve got a shiny new toy and can’t wait to see what it can do. In the case of the RTX 4090, that means throwing the most demanding games at it, trying out the first DLSS 3 titles, and pairing it with a 4K monitor. If you followed our guide to building your high-end gaming system, that’s the hard part done, now it’s about sitting back, making the most of that $1,600 you just dropped on a GPU, and enjoying the best gaming experiences on the planet. So get that Steam wishlist at the ready, here’s what you need to do first.