I imagine if you are CPU bound then it's worth doing, but the performance hit seems pretty dang significant. In the games I've tested, even DLDSR with the 1.78x option (1920p is downscaled to 1440p) doesn't seem "that much" better looking to my eye though in games with crappy Anti-Aliasing it helps with image stability/aliasing very noticeably. One of the things I find a bit irritating is that you cannot set the DLDSR sharpness/smoothness value per profile and different games definitely need somewhat different values in my experience -- for example DOOM 2016 with the TSSAA (TX8) option is very soft looking and thus can benefit from a lower smoothness value but other games like Overwatch which do not have temporal anti-aliasing and rather use single frame SMAA and look very sharp as a result seem to look much better with a higher sharpness value to my eye. Another thing that seems interesting to me with all this is the Ultra Low Latency mode -- my understanding is that mode helps more when you are GPU bound and it perhaps can result in a bit more hitching if the CPU isn't fast enough for a moment and is thus late in delivering the current command buffer to the CPU (my understanding could be wrong). Thus maybe DLDSR + ULLM is a good fit as it ensures you're super duper GPU bound? Anyhow, just wondering what people's experience with the tech is, I haven't really been blown away by DLDSR considering it's very steep perf cost, but the better anti-aliasing is nice. I could see this being very useful in games that have built-in 60 fps caps when the user has the overhead like Dark Souls 3 or DS Remastered or some such.