Nowadays I'm mostly playing World of Warcraft, and have easily run max settings with my Vega (with new and improved minimums from my new 3900x). I saw they enabled RIS for Vega in the newest drivers, so I gave it a try without expecting much.
Wow, what a difference! Without changing my resolution from native 3440x1440, I saw clearer details on backgrounds, characters, and textures from near to far. All of this without touching framerate at all. I'm not sure if the improvement is clearly visible in these screenshots, but it is certainly immediately apparent in game. Thanks, AMD!