What I'm here to address is Vsync, some people seem to think that it doesn't limit your FPS or rendering speed when in fact it does. 1st off I will try to explain Vsync as easily as I can, Vsync is when your video card waits for your monitor to refresh the vertical on your screen. Some of you are thinking: So what? How is that important? Well, on some monitors, turning off Vsync will stretch the vertical (up and down) too much and cause tearing in the textures, making the game hard to play. That is what I experience. But the real stir is wether is makes a difference on or off. I'm here to straighten that out.
Monitors have a refresh rate which is measured in Hertz (Hz) most of the monitors default to 60Hz.. Your average user will stay on that without knowing that there is better. I run my desktop at 1024x768 and 75Hz. That is about normal for advanced users, even getting into the low category. The higher the Hz the faster the monitor refreshes the screen making less flicker and much easier on the eyes. But what does this have to do with games? Most games have Vsync enabled by default... so that means that your game can't run faster than your refresh rate. If you have a 60Hz refresh rate, you can't get higher than 60 FPS in most games and usually lower. People that "tune" their system usually turn this off to allow the game to render as fast as it can, thus making more FPS. For some people there is no stretching and barely any flickering. But for a lot of people, including me, their screens get stretched so far that the game becomes unplayable.
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