![]() ![]() When conventional vsync is enabled, the GPU is no longer able to replace the contents of the monitor buffer with a new frame, before the old frame gets its 16.66 ms of fame. Because the display can only output frames so fast (1 frame every 16.66 ms for 60 Hz panels), screen tearing happens when a new frame arrives before the previous frame's out of the picture. When vsync is turned off, your GPU sends rendered frames to the display as fast as it can. TVs (which often use VA panels) tend to be the worst performers, with some that go as high as 30 ms or more. VA panels tend to have more input lag, with many panels in the 8-10 ms. High-refresh rate IPS and TN panels deliver the lowest input latency out of the box. This is typically dependent on the type of panel being used. A few ms of input lag could mean the difference between getting that headshot or getting scoped yourself.Īll monitors (and TVs) add a certain amount of input lag by default. However, in competitive situations like esports shooters, every millisecond counts. When you're using your computer to browse or playing casual games, it doesn't tangibly affect the experience.Īlso read: How Many FPS Do You Need? Frames Per Second, Explained This lag is so minor that it's measured in milliseconds. ![]() What does that actually mean? When you type on your keyboard or move your mouse, there's a slight, almost imperceptible lag between the action you take and the output on your display. Low-lag vsync on is a technique that helps to reduce your input latency. Horrible screen tear with vsync off What is input latency?īefore getting into the how-to, it's a good idea to understand exactly what we're doing. What the heck is it? And how do you do it? We'll walk you through, step by step, in this guide. This is one of those rare PC tweaks that can massively improve your gaming experience with minimal tradeoffs and no investment. The result? Clear, tear-free image quality and input latency that's up to 50 ms lower than conventional vsync. But if you have a regular, fixed refresh rate monitor, or if you like to play games on your TV, this guide will help you get a tangibly better experience in terms of screen tearing and input lag.īy leveraging millisecond-accurate frame-capping in RTSS (Rivatuner Statistics Server), you can enable low-lag vsync on. If you already have a modern gaming monitor that supports variable refresh rate ( FreeSync or G-Sync), you don't need to use this guide at all. You could either have a tear-free, properly frame-paced image or low input latency. Screen tear or input lag? To vsync or not to vsync? For the longest time, this was an either-or question in the PC gaming space. ![]()
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