DLSS3 - Higher Picture Quality the Higher the FPS

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A while ago I watched DigitalFoundries video on DLSS3 and one particular thing struck me as odd. Check out the timestamped part of the video (I would still recommend the whole video though):

Thus, it appears even DLSS2 has a better image quality the higher the FPS it can deliver. As a result, DLSS Perormance Mode 2160p@60fps will have less image quality than DLSS Perormance Mode 2160p@240fps. I’m wondering how DLSS Quality Mode 2160p@30fps would compare to LSS Perormance Mode 2160p@240fps.

This is something entirely new and I have not heard that before, which is why I wanted to share it here. Furthermore, I’m wondering if this is the same for FSR and XeSS.

One reason how I would be able to explain this is that one or all of these statements hold true:

  • Given that DLSS uses motion vectors, i.e. it remembers previous frames, it is easy to reconstruct an image if the difference between frame n and frame n-1 is as small as possible
  • Maybe DLSS uses all frames of the past x seconds, which would result in a higher framerate delivering more data.

Do you have any other ideas or input?

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