Reviving this old post because I found a way to use DSR in nullDC. Even though emusa found a solution using those old multi-letter AA methods (eg sgssaa), I believe that DSR is even better. First thing to do is enable DSR resolutions in the NVIDIA control panel. Then set the desktop resolution to the DSR resolution. In my case, I have a 1080p TV, so I set the desktop to 4k. Also, it's normal for the UI to look a little blurry at this point. The next part is crucial: Go into the display properties and look for the slider "Change the size of text, apps..." For me, it shot up to 225% after I set the desktop to the DSR resolution. You need to make sure this is 100%. There is no full-screen resolution setting in nullDC. I suspect it grabs the current resolution from WinAPI. But because of the resolution scaling, that's going to be reported as 1080p even though the desktop resolution is 4k . The results are totally worth it. It works especially well on games that lack MIP mapping like Metropolis Street Racer. That was a really good game, but the texture crawling in particular was a major annoyance. Running a 4k DSR resolution downsampled to 1080p completely fixes it.