Nvidia control panel vsync
In this environment, if double buffering is used, and your framerate falls below the refresh rate, the GPU may fill both frame buffers and become temporarily idle while it waits for the display's next refresh cycle so it can free up one of the buffers. When Vertical Synchronization (See the Vertical Sync setting further below) is enabled in a game, your GPU will become synchronized to your monitor's refresh rate. Triple Buffering: In normal rendering, the GPU uses a technique known as Double Buffering to store two graphics frames in the Video RAM - one frame of graphics which the GPU is currently working on, and one frame which has been completed and is sent to the display. You can turn this setting Off under the Program Settings tab for particular (typically old) games which have problems at the Auto or On setting.
NVIDIA CONTROL PANEL VSYNC HOW TO
This will allow the driver to determine if and how to use threaded optimization for various games. It is recommended that Threaded Optimization be set to Auto under Global Settings. User feedback indicates that some older games, as well as some OpenGL games, will exhibit problems if Threaded Optimization is set to On.
It should be noted however that none of the games I tested were old enough to have been developed before multi-core CPUs became available to consumers (around 2005). In testing this setting in several games, I saw no performance impact. Auto allows the GeForce driver to determine if it applies threaded optimization, On forcibly enables it, and Off disables it.
The available settings are Auto, On and Off. In theory, by allowing the driver to offload certain GPU-related processing tasks as separate thread(s) on available CPU cores, performance can be improved. Threaded Optimization: This setting controls the use of multithreaded optimization for games on systems with multi-core/HyperThreaded CPUs. Nvidia GeForce Tweak Guide Nvidia Control Panel (Pt.4)