DLSS, FSR, TSR are for upscaling, not downscaling, so I’m not sure how they would apply anyway.
The creator hints a bit at things in this video: https://youtu.be/v9FMp5QgOvY?t=2m55s
The creator hints a bit at things in this video: https://youtu.be/v9FMp5QgOvY?t=2m55s
From the Wikipedia page for DLSS:
The goal of these technologies is to allow the majority of the graphics pipeline to run at a lower resolution for increased performance, and then infer a higher resolution image from this that approximates the same level of detail as if the image had been rendered at this higher resolution. This allows for higher graphical settings and/or frame rates for a given output resolution, depending on user preference.