At some point Nvidia crippled their drivers if you didn't have a Quadro on Linux. Eg: No multi-monitor. Not sure how of that they do now. So some guy resoldered some resistors on a GTX 690 (at the time the highest spec card they sold). To make it identify as the Quado with same specs.

https://hackaday.com/2013/03/18/hack-removes-firmware-crippl...