Nvidia calls it DSR, you’re going to want to set it to 4.00X and add a fair bit of sharpening too.
On AMD, you can do an overlay of the drivers and make these tweaks in-game, with Nvidia you’ll have to open and close the game for every change you make.
After you’ve enabled DSR (Your monitor will flicker on and off while it enables), make sure you set your in-game resolution higher than your native res, and turn the resolution scaling down to 50 or 60.