For a project that I’m currently helping with, we needed recent OpenGL features that are only available on NVIDIA drivers with version 340 and later. Unfortunately, I have one of those NVIDIA Optimus laptops. Up to now, Bumblebee worked a treat (I would recommend this system in most cases), but for this project I needed the whole of X to run on the NVIDIA, so I had to make use of nvidia-prime to switch between Intel and NVIDIA mode.
