Performing this duty gets a little tricky in a system that runs multiple monitors simultaneously but even if you have just one monitor, you may want to adjust some important settings. Your GPU has one crucial job: to drive your PC monitor through analog (VGA) or digital (DisplayPort, DVI, or HDMI, for example) interfaces. But turning on antialiasing from your dektop’s GPU control panel may apply it to every pixel of every frame at all times, dramatically reducing (in some cases) the frame rate your system can deliver. Consider antialiasing, which eliminates jagged edges but tends to reduce your frame rate: The game’s designers have optimized in-game antialiasing settings for the game, applying antialiasing algorithms only when they consider those adjustments necessary.

GPU control panels let you tweak various 3D settings, but the settings they may be impractical and imprecise. When possible, use in-game controls to change 3D settings: Changing settings inside a game is the best way to control image quality and performance. For example, you can set up Windows for multimonitor support, but if you want additional features such as bezel compensation (which lines up pixels on bezel boundaries to create a seamless image), you should use the graphics control panel. You’ll still want to use the graphics control panels to deal with GPU-specific settings. In contrast, if you handle the operation through Windows, the behavior will remain the same. Sure, you could work in the GPU control panel instead, but if you ever changed graphics cards later on, you’d need to learn a new control panel. Use Windows system controls for basic settings: If all you need to do is set the resolution for one monitor, work from the display control panel built directly into your operating system. Before plunging into control-panel specifics, we should review two important guidelines that everyone ought to follow.

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