Adaptive Degradation

Controls whether adaptive degradation is on or off. With adaptive degradation on, if performance goes below the specified level, effects are disabled or reduced in a certain order until performance returns to an acceptable level.

Degrade When FPS Is Below

Sets the level at which adaptive degradation begins in frames per second (FPS). The default speed is 5 FPS. Enter a number or choose a number from the list.

Degradation Order

Specifies the order in which effects are degraded. Items at the top are degraded first. Items that are not checked are not degraded. Click Move Up or Move Down to move a selected item up or down in the chain.

Move Up

Moves the selected item up in the chain.

Move Down

Moves the selected item down in the chain.

Hardware and Performance Tuning

Specifies hardware settings and performance tuning. The performance tuner reads your system and decides whether to use software or hardware implementation for features that support both. Features that work with your system are turned on, and features that cannot work with your system are turned off. A log file displays the results. You can make manual changes.

View Tune Log

Displays the Performance Tuner log.

Manual Tune

Displays the Manual Performance Tuning dialog box.

Check for Updates

Checks for updated versions of the graphics card and driver database that is used for performance tuning.

Get Download Info

This button is displayed after you have checked for updates and when a new driver is available and recommended.

Displays a Web page that describes the certification program for graphics cards and display drivers. You can download the latest list of certified cards and drivers at any time.

Graphics hardware certification indicates which graphics card and driver combinations that Autodesk has tested to ensure that it supports real-time 3D shading, shadows, smooth-line display, and texture compression features of AutoCAD 2007 (and later) based products. Autodesk certified graphics hardware is better suited for the 3D display features of AutoCAD 2007 and later releases, and non-certified graphics hardware may not support these features or may cause problems during use.

Graphics card information for the current system is available in the Performance Tuner Log, which you can view by clicking the View Tune Log button in this dialog box.

Remind Me When a New Driver Is Available

Specifies that a notification bubble is displayed when a new driver is available.