Conversely, if your game FPS is high, then input lag will be lower. If you are getting lower FPS in games, then you will have higher input lag. Frame Rate (FPS)Īnother thing that hugely affects input lag is the frame rate in games. So, if you want to reduce input lag in games, then it is better to turn off V-Sync completely and use other techniques to lock the frame rate that involves using a frame rate limiter software. The input lag introduced by the in-game V-Sync and graphics driver V-Sync can vary as one may introduce a greater or lower input lag depending on the game. V-Sync can be turned on or off in the in-game graphics menu and from the driver’s control panel. However, even when the graphics card is capable enough to keep the FPS above the monitor’s refresh rate, V-Sync does introduce some input delay in all games. V-Sync only works well when your GPU is powerful enough to deliver frame rates greater than the monitor’s refresh rate and if the frame rate drops below the refresh rate, then it induces a lot of input lag and cuts the original FPS in almost half. V-Sync helps to reduce screen tearing in games by synchronizing the game FPS to the refresh rate of the monitor. This means if you have a 60Hz refresh rate monitor, then enabling V-Sync will lock your game frame rate to 60 FPS only. V-Sync or vertical sync is a technology or setting that locks the game FPS to your monitor’s refresh rate. Here are the various factors that affect input lag in PC games. Phenomenonĭelay when the input controller is pressed, and the corresponding action is reflected on the screen, Lag feeling As I have told you before, both are different things and are independent of each other, and it is always preferable to keep both of them as low as possible for an enjoyable and smoother gaming experience. On the other hand, input lag is associated with a delay in the response on the screen whenever you press a button or key on the input controller (mouse/keyboard). So, if the pixel response time of your monitor is on the higher side, then you will experience ghosting in fast-paced games or whenever you make a quick move. Pixel response is also specified in milliseconds (ms) and is associated with ghosting and motion blur. Pixel Response Time is the time taken by a pixel on a monitor to change its color from one to another while input lag is the time between the input is triggered or activated from a controller by you, and the corresponding action is reflected on the screen. Most people confuse Pixel Response Time with Input Lag, but both are totally different things. Not good for competitive gaming and above 40ms is on the higher side Input Lagįor competitive gaming (FPS, Arcade, etc.) and eSports Input lag over 40ms is not good, and you may start to feel lag in the gameplay. If you are a competitive gamer, then you should always strive to keep it under 10ms, and if you are playing normal games, then anything under 25ms is pretty good. Also, some users are very sensitive to input lag, while some don’t even notice input lag unless it is substantially higher. There is no generalized answer to this question because input lag depends on many factors that include the game, monitor, controller (in the case of the wireless device), and how powerful your CPU and graphics card is. Total Input Lag = Game Input Lag + Monitor Display Lag + Input Lag due to Mouse/Keyboard The total input lag is the measure of input lag due to the game plus input lag due to other devices and components. It is also not the most accurate method because it may add up additional lag when you have to start and stop the stopwatch. This method involves a lot of work that includes analyzing the frames and then accurately measuring the time between them using a stopwatch. The most common way to measure input lag is using a high-speed or normal digital camera and then recording the time between the input you have triggered on the mouse/keyboard and its effect or action is seen on the monitor screen. In story-based games, role-playing games (RPG), and slow-paced games, input lag does not make that much of a difference, but in fast-paced FPS games (CS:GO, PUBG, Overwatch, etc.), competitive games, and esports games, it matters a lot and you should always try to keep the input lag as low as possible because if you have higher input lag, then competitors with lower input lag can have a significant advantage over you as they can make a move faster than you. Input lag is measured in milliseconds (ms), and in some cases, it can also specify in frames.
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