I recently upgraded my Ubuntu 16.10 desktop with an NVidia GeForce 730 graphics adapter. My experiences with the nouveau opensource driver haven’t been good so I decided to install the binary drivers from NVidia. Ubuntu makes this process INCREDIBLY easy. To install the latest NVidia drivers you can click the “Search your Computer” icon in the Unity menu, type in “Drivers” and then click additional drivers. That should present you with a screen similar to the following”
Clicking “Using NDIVIA Binary Driver” and then “Apply Changes” should load the correct driver for your card. Once the driver loads and your X11 configs are updated you should be able to reboot into a desktop environment that is powered by the NVidia closed source graphics driver. So far it’s working well!