Posted April 14, 2017
adamhm: Framerates with the RX480 are worse than on the Nvidia card, but it's playable with reduced settings. In general I've found AMD GPUs to underperform on Linux (which is why I continued to use the 750 Ti in my main system even after getting the RX480), but AMD have been putting a lot more effort into their Linux drivers over the past year or so & they've seen (and are continuing to see) a huge amount of improvement. Although there's still a lot left to do, so performance is a bit mixed atm.
Adam have you tried using Gallium9 with your AMD card? I had framerate boost from 40 to 130.