DLSS = Lower resolution image upscaled to your monitor's native.
DLAA = Higher resolution image downscaled to your monitor.
DLAA is not higher resolution, it uses the exact same resolution.
The entire pipeline is as follows:
- Have a desired output resolution, let's say 4k for this example
- Shove an image as input for your DLSS pipeline.
- For DLSS performance, the input resolution is 1080p (this is what your GPU renders.
- For DLSS balanced, input res is 1253p
- For DLSS quality, input res is 1440p
- For DLAA quality, input res is 4k
- Get output image at desired resolution
that just happen to work well together.
They don't work together. DLAA is a specific case of DLSS where the scaling factor is set to 1x
And I just noticed others have already explained the above. Well, I will not let my 5 minutes go to waste and post it anyways lol