Basically says what AMD says all along, and everyone confused it with DLSS, downscaling and upscaling.
It sharpens the textures, greatly improving the visuals, with barely any performance hit. Full stop.
By default is applied on driver level, it doesn't need from developers to code for it, yet there are developers who will explicitly develop their games based on that feature.
I can see now, how AMD is pushing this for the next round of consoles. Is a big boon to maintain performance, while greatly improving image quality on the same resolution.
And is not hidden in the spyware called NV Experience........