NVIDIA has just released their first alternate graphics drivers for OS X El Capitan 10.11. These are separate from the drivers Apple ships as standard, and should be considered experimental. These drivers have been known to solve OpenCL issues with certain applications, as well as providing better native GPU power management for certain devices. NOTE: These drivers are currently the only method to get full acceleration for NVIDIA GeForce GTX 750, 750 Ti, 950, 960, 970, 980, 980 Ti, and TITAN X 'Maxwell' graphics cards. There are no current Macs with these cards, so support is absent natively in OS X. If you've installed the drivers before, you may get a notification to update to the new drivers from the built in System Preferences pane. NVIDIA Alternate Graphics Drivers for OS X 10.11.0 http://www.nvidia.com/download/driverResults.aspx/92192/en-us How to Install the Web Drivers: In order to use the alternate drivers on a CustoMac, you must first install the driver package. Also make sure to choose NVIDIA Web Driver using the standard menubar or system preference pane then reboot. Common Problems and Solutions: http://www.tonymacx86.com/graphics/161256-solving-nvidia-driver-install-problems.html Related: http://www.tonymacx86.com/graphics/...ate-graphics-drivers-10-10-5-346-02-03-a.html http://www.tonymacx86.com/graphics/...ate-graphics-drivers-10-10-4-346-01-03-a.html http://www.tonymacx86.com/graphics/...ate-graphics-drivers-10-10-3-346-01-02-a.html http://www.tonymacx86.com/graphics/...ate-graphics-drivers-10-10-3-346-01-02-a.html http://www.tonymacx86.com/graphics/...ate-graphics-drivers-10-10-2-343-02-02-a.html http://www.tonymacx86.com/graphics/...ate-graphics-drivers-10-10-1-343-01-02-a.html http://www.tonymacx86.com/threads/n...01-01-with-maxwell-geforce-gtx-970-an.143435/ Please note that these drivers should be considered experimental. If you aren't having any issues, do not install- the native OS X drivers work great for most people.