(security update 31 october) Sierra Driver 378.05.05.25f03 gives a black screen with my Geforce 980 and El Capitan driver 346.03.15f10 is not visible in google or at the website of MacVidCards. After the OS loads, I get a dialog box saying CUDA driver Version 418.163 'Update required.' On Windows and Linux, CUDA graphics drivers are bundled with the regular drivers for your NVIDIA GPU.
Keep in mind Apple has now deprecated OpenGL and OpenCL with macOS Mojave and is subject to removal in a future release. An internet connection is not required to run the software.
Update/fyi, the first post on this update in a previous thread on the cuda problem.