Yes – I had a pop up message when Resolve started that this software working better with two graphic cards – one for GUI and another for CUDA acceleration. If this GUI card is for display only – that, in my opinion, could be any card supporting full HD resolution – not necessarily another CUDA compatible NVidia . Why not i.e. my on-board chip ATI 4250? So I turned on my ATI and plugged my monitor to it. The pop up message is now gone, but slow rendering problem remains. That possibly means, sadly for me, that GTX 560 Ti with 1GB ram is not efficient enough to work with DaVinci Resolve.