[zanny]

I've been using AMD GPUs since they first stabilized the radeonsi driver ~6 years ago.

7870 -> 290 -> 580 -> just got a 5700 XT yesterday.

They are good. It generally takes 6 months after a card is announced for the drivers to work properly, but I'm currently on linux-mainline 5.4r6 and mesa-git and the 5700 XT is working nicely. On 5.3 and Mesa 19.2 / LLVM 9 there were a lot of graphical glitches and crashes, so that series should be in place within a few months.

The other 3 just keep chugging along working nicely. The 7870 is too old to get AMDGPU / Vulkan support unless its turned on manually, but that has worked in light testing.

My only complaint is that hardware video encoding is awful - it hogs enough resources to substantially hamper game performance if used concurrently, enough that it makes more sense to software encode on a beefier CPU than to try to use the hardware encoder on the GPU.