Half life source mouse lag3/27/2023 ![]() ![]() Some would much prefer a screen with next to no input lag (<4ms for example) whilst others would happily use a screen with much higher input lag (16ms+). However the figures have been derived, it’s important to appreciate that different people have different tolerances to input lag. Sometimes users will sweat over a few milliseconds difference, the sort of difference that could be accounted for purely by the measurement method’s margin of error. Many people have become obsessed with comparing input lag values, even without appreciating the inherent inaccuracies of many of the figures they’re seeing. ![]() Further information on supporting our work. Where possible, you’ll be redirected to your nearest store. ![]() It’s often included in what most websites and users will refer to as input lag, though what people are usually more interested in is how the monitor will feel, which is more heavily weighted towards the signal delay element.Īs an Amazon Associate I earn from qualifying purchases made using the below link. But really, the pixel response affects what we like to call ‘visual latency’ rather than ‘felt latency’. What we ‘see’ and ‘feel’ can of course be closely connected. Response times primarily affect how the monitor looks, as we focus on later. It is important to differentiate between these two as the signal delay significantly affects how responsive a monitor feels. Because they rely on a visual interpretation of a display’s output they are influenced by the pixel transitions themselves (response time) and not just the pure signal delay. Such methods can give a reasonable idea of input lag, particularly if you have a good reference screens (known input lag) to benchmark against. This will be done using a stop clock or special software such as SMTT (Small Monitor Test Tool). Often when websites or users measure input lag they will be using a camera to capture apparent differences between a display of known input lag and their display of choice. This will allow you to specifically determine the signal delay rather than the overall latency. To measure the signal delay accurately requires specialist equipment such as an oscilloscope and photo diode. Manufacturers will sometimes give PC monitors a dedicated mode which will bypass much of the signal processing sometimes a dedicated ‘low input lag’ or similar setting that can be activated through the OSD (On Screen Display). running the monitor at its native resolution). Sometimes the signal must pass through the scaler even if scaling is not required (i.e. It is not too uncommon for higher end screens in particular to use internal scalers to handle non-native resolutions, which can add significant input lag. Monitors will process the image in various ways before outputting it – some models do this more extensively than others. ![]() A lower input lag is advantageous because it leads to a snappier feeling when you interact with the display using your mouse or other controller. This is covered in this excellent article by AnandTech, but we shall be focusing on just the monitor here. There are of course other sources of latency beyond simply this signal delay and not all of it comes from the display itself. The basic component of input lag which affects the feel is referred to as the signal delay and is commonly measured in milliseconds. Input lag is all about the delay between the graphics card sending a frame to the monitor and the monitor displaying that frame. When considering the responsiveness of a monitor you must consider what the user feels when trying to interact with the monitor as well as what they see with their eyes. In this article we break through the confusion, taking a detailed look at the key factors affecting responsiveness. Unfortunately for the consumer, a true picture of ‘responsiveness’ is never painted by manufacturer specifications. As with other factors affecting the overall image quality, there are a lot of different aspects to consider here. Some users, particularly gamers, are also quite particular about the motion performance of a monitor and will be looking for something that is responsive. If you ask a user what they look for when buying a monitor they may respond by saying “a good resolution”, “good colours” or “good image quality”. ![]()
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