https://wccftech.com/nvidia-dlss-ultra-quality-mode-discovered-in-ue5-alongside-version-2-2-9/

While AMD launched its FidelityFX Super Resolution (FSR) spatial upscaling technique last week, NVIDIA isn't sitting on the proverbial laurels with its Deep Learning Super Sampling (DLSS). As spotted a few hours ago by Reddit user Reinhardovich in the Unreal Engine 5 DLSS documentation notes, an Ultra Quality mode is under testing.

The asterisk warns Unreal Engine 5 developers that this DLSS mode is a 'placeholder for future feature updates', though, and therefore should not be enabled for the end user yet. Still, it's probably a good idea to offer it given that Quality Mode currently scales up from 66.6% of the input resolution, whereas FSR already comes with an Ultra Quality mode that scales up from 77% of the input resolution.