Can't find Nvidia D-noise in blender 2.82. And add-on for 2.81 is unavailable to download - Compositing and Post Processing - Blender Artists Community
Blender 2.82 Released with AI Denoiser for Nvidia RTX GPUs, More - 9to5Linux
Blender Cycles X - Render Speed Test in ArchViz Scenes - Evermotion.org
Optix AI Denoiser - Latest News - Blender Artists Community