AMD has the ProRender engine - it is both CPU and GPU agnostic and uses both as a single engine. So far there are only 2 plug-ins for OSX software (Blender (cycles) and Maya) as well as 3DS Max, Solidworks, and Unreal on the Windows platform.You know, if newer AMD cards could somehow support CUDA nVidia would lose a big market, because thats one of the main reasons people who do rendering work prefer nVidia over AMD. I solved the issue quite easily:
1 x Workstation 2009 MP, frozen at Sierra and maxed out in terms of Ram/Speed etc for work only
1 x MacBook 2014 and 1x iMac 2013 with the newest OS for anything else
At least for the next couple of years that setup should be fine. Afte that, we might all switch to Apple GPU's anyway.
I don't think this qualifies as blocking, but what do I know
Clueless.NVIDIA already writes drivers for their cards, they run just fine under OSX, and at worst you just have to find the drivers on their website (so you're setting that up when normally you would expect Apple to sell the machine ready on boot up)
I don't see any major issues unless Apple explicitly removes complete PCI support, which I really doubt.