NVIDIA P128 User Guide - Page 133

NVIDIA Display Properties User's Guide Figure 9.18 OpenGL Settings: Single-Display Hardware Acceleration Performance & Compatibility Options Default Single-display Mode option for nView Standard mode Performance and Compatibility Options • Disable support for enhanced CPU instruction sets: Enable this option to disable driver support for enhanced instructions used by certain CPUs. Some CPUs support additional 3D instructions that complement your NVIDIA graphics processor and improve performance in 3D games or applications. This option allows you to disable support for these additional 3D instructions in the drivers. This can be useful for performance comparisons or for troubleshooting. • Enable conformant OpenGL texture clamp behavior: "Texture clamping" refers to how texture coordinates are handled when they fall outside the body of the texture. Texture coordinates can be clamped to the edge or within the image. • Use unified back/depth buffer: Enabling this option allows the OpenGL driver to allocate one back buffer and one depth buffer at the same resolution of the display. • When the option is enabled, OpenGL applications that create multiple windows use video memory more efficiently and show improved performance. • When the option is disabled, the OpenGL driver allocates a back buffer and depth buffer for every window created by an OpenGL application. NVIDIA Corporation 126