I have no problem running most games under radeonSI. Only ones I have that don't work are Natural Selection 2 and Metro Last Light, which is mostly waiting on G

I have no problem running most games under radeonSI. Only ones I have that don't work are Natural Selection 2 and Metro Last Light, which is mostly waiting on GL 3.3 in LLVM 3.5. For example, DOTA2 / Portal 2 / TF2 all run at ~60 fps with high / ultra settings on my 7870. There is nothing about driver openness that would impede their ability to run OpenGL games besides the version support, and that is rapidly being remedied.