I am planning to build a new system and I am contemplating to use a Quadro P600 or P1000 with a GTX 1070 Ti or comprable next to it to use for CUDA apps such as OctaneRender. There aren’t many people with this config so info is sparse.
However, what I did find is that nVidia does not like configs like this and blocks it driver-wise. Presumably, if you install a GTX-type card next to a Quadro, the Quadro wil start using the GTX’s driver essentially negating the benefits of the Quadro card i.e. increased viewport performance.
So, my alternative is to use a configuration I do have experience with: An GTX card combined with an AMD FirePro. I used to run a FirePro V4800 besides my GTX Titan and it worked like a charm.
Since Rhino 6 won’t be having problems/hassles with AMD card like Rhino 5, I am considering to get an AMD Radeon Pro WX 3100 or WX 4100 to run my UI and the GTX 1070 Ti for CUDA apps.