![]() ![]() They actuate at 1.2mm and travel up to 3.4mm.Then there are unique type of keyboards that allow you to adjust the actuation point. There are switches specifically made for faster key input, such as the Cherry MX speed switches. These are often coupled with a membrane computer board, which you should avoid at any cost if you’re into the least latency with the most reliability. But be aware, when a keyboard has rubber-dome type of switches, and any laptop with scissor switches. This means that a switch type like scissor-switch with a 1~2.5mm travel distance will often have the fastest physical key input. Also when you repeat a key press, any travel after the actuation point is wasted time. Such as pre-loading and not pressing till the end.In short, you could say a combination of the shortest travel distance and highest actuation point will result in the fastest key input. This is not taking into account any adjusted behavior to minimize travel. According to a project about keyboard latency by Dan Luu, travel time can account up to 10ms. Travel distance can have a huge impact in reaction time. Switch travel distance influences step 1, Key input. ![]() Now that you understand the journey of input latency, it’s time to look at what can influence it at a digestible level. KEYBOARD POLLING RATE TEST SOFTWAREPC software is the time your operating software (OS) and the particular program/game your using needs to process the input.USB polling is the frequency at which the PC checks for input from the keyboard.MCU processing is the time it takes for the microcontroller (MCU) to process the input.Scan rate is the frequency at which the keyboard microcomputer chip (MCU) reads the keys.Key input is the actual physical press of the key.It’s an oversimplification that only takes the main and most easy digestible parts. The parameters of inputīefore we step into what exactly influences the input latency, I’m going to dissect the steps a keyboard takes for an input to PC. I’m going to focus solely on input latency from here on out. You can increase your accuracy not only with the shortest input delay but also by coupling the point of most impact with the point of activation. Your reaction time will likely consume the most, and the best way to combat it is by tapping at a rhythm and knowing exactly what’s going to come next. This needs to account for your reaction time, movement, and input lag. Each action in OSU has a 80ms time frame to react or less for a perfect 300 score. In Rhythm games, like OSU, you want the fastest input speed, but also the highest accuracy. If you only need consistency in repeated presses, you’re looking at getting the best accuracy. If you only need the fastest reactions, you’re looking at getting the least input lag. There’s a difference between the input latency and accuracy of a press. It definitely doesn’t mean it’s optimized for (competitive) gaming. If a product has “gaming” in its title these days, it’s for marketing, an excuse for its ridiculous design and RGB effects. ![]()
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