devtrackers.gg
Lots of rigs would struggle with that resolution I have to think (maybe some RTX cards are exceptions). I have a GTX 1080 and I think 2160 is optimistic. It's a good option for 1440p and high/very high settings.
For me personally, ambient occlusion is the option that I find is too demanding, so I don't have the full version turned on. :)
flair: ubiresponse