Updating graphics card mac
Once you've chosen the e GPU that's best for you, you'll want to read about How to use an e GPU with a Mac.
Visit Stack Exchange I don't know how to update Nvidia graphic card drivers on Mac Book Pro Retina.
Looks like plenty of options for many operating systems.
(Mac OS X NVIDIA drivers are only available for Quadro-series boards, tho'.) It looks like Apple doesn't really bother to update the graphics driver...
I only realized all this because I had massive performance issues after the upgrade to High Sierra (with its brand new graphics subsystem, Metal2), so basically I wondered the same thing, "Do I need to update the drivers? With the drivers from Nvidia it's now a lot smoother.
In this article we explain the advantages of using an external graphics card with your Mac or Mac Book, and round up the best buying options currently available.