(application-setting, app-hint) Since Direct3D is not always implemented in the same way some graphics boards perform best with some features turned off, and others tweaked to perform in a different way.

In the case of 3Dfx you can use a separate program called Tweak to add customization.

The PowerVR chipset has its own built in interface on its driver tab that allows the user to customize the settings for a particular game. VideoLogic and Matrox have supplied a long list of pre-configured games, but as new games come out more will be added in driver updates. The user can also update his own settings by going into the advanced settings for the PowerVR driver.