NVIDIA GeForce 600 "Kepler" On Open-Source: It's Uselessly Slow
Written by Michael Larabel in Display Drivers on 8 January 2013 at 11:08 AM EST. Page 4 of 5. 27 Comments.
The differences remain huge for the other ioquake3 games.
For GeForce 600 series GPUs, Nouveau is no competition at all to NVIDIA's binary graphics driver.