NVIDIA VCQFX550PCIEPB User Guide - Page 125

Chapter 7 Configuring Key ForceWare Graphics Driver Features • Select SLI antialiasing if you want to enable additional SLI-specific "advanced" antialiasing settings (SLI 8x and SLI 16x) - see "Antialiasing Settings" on page 113. • Select Single GPU rendering if, for example, you prefer not to use multi-GPU rendering for a specific application. The NVIDIA driver selects the GPU to use for single-GPU rendering. Note: This is not the same as completely disabling SLI. If you are trying to solve a compatibility issue, you may want to completely disable SLI by clearing the Enable SLI multi-GPU check box on the SLI page. You will then have to restart your computer. About Using Other SLI-based Advanced Settings For additional information on SLI and configuring advanced SLI settings, go to the following Web address: http://www.slizone.com/page/ slizone_appprofile.html Negative LOD bias To access the Negative LOD bias option, make sure the View advanced settings option is selected from the View list. Applications sometimes use negative LOD bias to sharpen texture filtering, which sharpens the stationary image but introduces aliasing when the scene is in motion. Anisotropic filtering provides texture sharpening without unwanted aliasing, so it is desirable to clamp LOD bias (move the Negative LOD bias status slider to the Clamp setting) when anisotropic filtering is enabled for better image quality. The default setting is Allow. Triple Buffering Note: Triple buffering is not available in an SLI configuration. • On - Enables triple buffering to improve the frame rate when the Vertical Sync setting is on and the frame rate is less than the vertical sync value. For example, under a 72 Hz refresh rate setting, an application that runs at 61 fps (frames per second) with Vertical Sync off will run at 36 fps with Vertical Sync on under double buffering but will run at 54 fps under triple buffering. • Off - disables triple buffering. NVIDIA Corporation 125