Joinsubscribers and get a daily digest of news, geek trivia, and our feature articles. Gaming mice are advertised with high DPIs and polling rates. These specifications generally matter most to gamerswhich is why you tend to see the values prominently displayed in advertising and on packaging for gaming mice. Arguably, though, a mouse with good precision also can be important to graphic artists and designers.
There was a time when a computer mouse contained a rubber ball that rolled and picked up dirt as you moved it across a mouse pad. Those days are over, and today we have optical and laser mice. Modern optical mice contain a light— usually a red one—and a little camera. As you move the mouse around, the light shines on the surface below the mouse and the camera takes hundreds of pictures per second.
The mouse then sends this movement data to your computer as mouse input, and the computer moves the cursor across your screen. Laser mice function similarly, but use infrared light instead of visible light. Dots per inch DPI is a measurement of how sensitive a mouse is. A mouse with a higher DPI setting detects and reacts to smaller movements.
On the other hand, a higher DPI setting helps your mouse detect and respond to smaller movements so you can point at things more accurately. When zooming in with a sniper rifle and trying to aim precisely at small targets, a high DPI could be valuable by allowing you to smoothly aim with small mouse movements. When playing the game normally without a zoomed-in sniper rifle, this high DPI may be too sensitive.
This is why many high-end gaming mouse have buttons that you can flick to switch between DPI settings on the fly when playing a game. You can also see why more sensitive mice are attractive to designers that need to make minute adjustments in their designs.
DPI is different from the typical mouse sensitivity setting. High DPI mice are more useful if you have a higher-resolution monitor.
Polling rate is measured in Hz. If a mouse has a Hz polling rate, it reports its position to the computer times every second—or every 8 milliseconds.
A Hz rate means that the mouse is reporting its position to the computer every 2 milliseconds. A higher polling rate can decrease the lag that occurs between when you move your mouse and when the movement shows up on your screen. On the other hand, a higher polling rate will use more CPU resources as the CPU has to query the mouse for its position more often.
A mouse that officially supports a higher polling rate will generally allow you to select a polling rate in its control panel. Some mice may have hardware switches to adjust their polling rate on the fly, too. DPI and polling rates are a subject of great debate.
Everyone has an opinion, and even some gaming mouse manufacturers have said that DPI is a fairly irrelevant specification to talk about. An extremely high DPI would cause the mouse cursor to fly across your entire screen when you nudge the mouse. A higher polling rate could be useful, but the difference between Hz and Hz will be hard to notice.
A higher polling rate also uses more CPU resources, so setting the polling rate too high will just waste CPU resources for no benefit. And, there are a lot of other factors important in choosing a good gaming mouseincluding things like size, weight, grip style, and button placement.
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Smarthome Office Security Linux.Most of USB devices can actually perform better by being polled more often without any side effects. For more results, click here! When you connect your controller, type that command to see what polling rate was applied to your controller. Most popular controllers use this. There is no practical difference here. On this black magic chapter, we will set it to 1ms for pretty much When changing this file, please make sure there is a new empty line.
With this setting, it's possible OSD will now start responding to faster inputs such as double input. This binary does more than fixing doulbe-inputs. The link has full list of features. To see what version from the main it is based on, just check on the dates on that download page. There is no way to know until you plug in your controller with the settings above. It would behave weird, and you will be able to tell quite easily. However, we have not seen any controllers that wouldn't work with the value so far.
Skip to content. Here's a well-sampled test result of default polling vs.
Overclock USB Controllers Polling Rate
This shouldn't go above 8. This value is not implemented yetbut coming soon. It is normal to not have this in your u-boot. If you put it too high e. You must reboot MiSTer for changes to take effect.
Reboot your MiSTer. That's it! Enjoy your improved USB controllers. Double-Input issues With this setting, it's possible OSD will now start responding to faster inputs such as double input. How to identify which controller isn't working at the fastest polling There is no way to know until you plug in your controller with the settings above.
Pages You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window.It is human tendency to assume that any modern peripheral would be faster than the previous generation by several orders of magnitude, but it turns out that it is actually not true.
Despite the higher transistor count and faster clocks than first generation PCs, modern keyboards actually have high key press latencies compared to the entire key press pipelines from yesteryear computers. When on the lookout for a high-end PC, keyboards are often given the after-thought. Except for enthusiasts no one actually spends time in perusing the keyboard specifications. Those on the lookout for purchasing gaming hardware will generally find themselves to be drawn towards keyboard latency and the mechanical nature of pro-gamer keyboards.
It is also a common perception that keyboards having high polling rates are better suited for gaming given their perceived low input lag and low response times. So do response times and polling rates matter when in the hunt for a good gaming keyboard or is it just a marketing gimmick? Ex-Microsoft engineer Dan Luu's little experiment might just have the answer.
Before we move to learn more about this interesting study, let us familiarize ourselves with some jargon. A keyboard having a Hz polling rate is queried by the host CPU times a second or times every 8ms. Although not an issue with modern processors, high poll rates do take up considerable CPU resources. Matrix Scan Rate - This is the rate at which the keyboard's microprocessor scans the entire keyboard matrix the rows and columns of keys to see which key has been pressed.
If it detects a key press — basically a binary 0 — it registers the input and sends it to the host. The rate at which the keyboard matrix is scanned depends on the firmware and is generally not visible to the end user. Debounce Algorithm - Given the mechanics of a key press, a key often 'bounces' or strikes its contacts multiple times before coming to rest.
The time period before it comes to rest is not usually perceivable but still enough to electronically register extra keystrokes.
A debouncing algorithm is usually incorporated in the keyboard's firmware to nullify the effect of these extra oscillatory strokes. Using a logic analyzer and a high-speed camera, Luu found that keyboards that actually advertise high speeds turn out to be slower. The latency was measured from the time the key started moving to the time the corresponding USB packet moved out of the USB bus in this case, Luu pressed the Z key on the keyboard, which sends a byte 29 on the USB bus.
Numbers were rounded to the nearest 5ms. Keyboards varied in the way they used the USB connection. Most keyboards just use the USB protocol, which is clocked lower. Popular conventional and gaming keyboards were compared among themselves to see which ones had the lowest latency. Best Displaysfor University Students. Luu's observations come as quite a bit of a surprise. The Apple Magic keyboard 2 apparently had the lowest latency of just 15ms while gaming keyboards such as the Razer Ornata Chroma and Easterntimes aka Tomoko MMC had high latencies of 35ms and 50ms respectively.
Gauging by the numbers, we find that many keyboards have latencies higher than the entire end-to-end pipeline of an yesteryear computer such as the Apple 2. Therefore, in the entire workflow of pressing a key and seeing the character on the terminal, a lot of delay is contributed by the nature of the keystroke itself.
Why do we see low latency in the Apple keyboard, which is not even marketed as a low latency keyboard while supposedly gaming keyboards show higher latencies? The answer could be in the key travel. When measured with a camera that captures images at fps 4ms per frameLuu observed that a complete key press takes about frames. Although in mechanical keyboards the key press will start registering even before the key is fully pressed, the key travel time can add up to 10ms delay which will vary depending on the switch mechanism underneath.
The Apple keyboard's key travel was so short that it could not be captured by the high speed camera. Apart from the key travel, other factors such as the keyboard matrix and the debouncing algorithm also contribute to the delay. Since the microprocessor in the keyboard has to scan the entire matrix looking for key presses, it can induce noticeable delays in the key press pipeline.
However, keyboard manufacturers can alleviate this by designing keyboards with faster matrix scan rates and better debouncing algorithms. Although many people claim that humans cannot notice latencies below ms, with the entire pipeline right from the key press to seeing the character on screen being a lengthy one, it is very much possible that any latency induced along this pipeline will be instantly noticeable. Keyboard latency is an oft ignored aspect of building a PC.Home Discussions Workshop Market Broadcasts.
Change language. Install Steam. Store Page. Global Achievements. At once I noticed that my sensitivity almost felt lower on wrist movements but higher on arm movements.
I am on on windows 8 heard they changed mouse ballistics and such and would like to know what you guys think. Showing 1 - 15 of 47 comments. Last edited by nick ; 12 Mar, pm. Originally posted by ezk :. Last edited by MillyG ; 12 Mar, pm.
Originally posted by Ill Gill. Last edited by nick ; 13 Mar, pm. Less random variances in the X and Y positions even when you ignore the positions in between. Less Input Lag at Hz: The higher frequency is a bonus because of less input lag -- the X and Y positions are delivered more freshly. At fps, you gain tiny near-invisible tearlines per second, is much better than coarse bigger-offset tearlines per second that are more noticeable.
Less aliasing between Mouse Hz and Display Hz: Dragging a window on a Hz display using a cheap Hz mouse, causes 5 stutters per second in the move the beat frequencybecause the mouse "jumps forward two times in one refresh" 5 times a second. By having samples per second, the window dragging position error is "off by 1 millisecond worth of movement" rather than "off by 8 millisecond worth of movement".
The same applies to video game movements, e. Originally posted by Arduous :. Energon View Profile View Posts. Originally posted by Cookybiscuit :. Last edited by Energon ; 18 Jun, am. Last edited by MillyG ; 18 Jun, pm. Originally posted by RiBeL :.The more DPI usually results in less accurate movements, but with high speed. Polling Rate means how often the mouse is communicating its position to the computer.
Polling Rate is measured in Hz. Having high Polling rate is good for gaming, but when you come up at around Hz and upwards, the rise is barely noticeable for the user. If you are a typical PC user, you would have heard about the terms DPI and polling rate of the mouse. But DPI and polling rate have a significant impact when it comes to gaming.
Gamers have to consider the polling rate and DPI of the gaming mouse they use because it directly affects the type of game they play. Eiter way, we are here to discuss the DPI and polling rate and how they impact on your gaming. Do you remember when there were trackball mice? And how inaccurate it was, thats because it used mechanical rollers to understand what position it had.
However, today we modern optical mice that use a totally different technology. As you move the mouse on the surface, the light shines, and the camera takes thousands of pictures in each second.
The mouse then utilizes these images and converts them into the direction in which you are moving it. The mouse then sends its movement data to the computer, where it is processed. Therefore is Optical mice much more responsive and accurate. Another type of mice is laser mice which have got a similar working function, and it only differs in the light.XIM APEX - Best Mouse & XIM Polling Rate Tutorial
Instead of using an LED light, the laser mouse uses an infrared light which is invisible to human eye. Laser mouse can track tiny details easily, and it is able to work on reflective surfaces easily unlike the optical mouse.
The higher is the range of DPI; the more can cursor move on the screen when you are moving the mouse. A gaming mouse usually comes with a high DPI range for detecting small movements easily. DPI is technically called CPI Counts Per Inchthe number of counts, or virtual pixels that the mouse sensor will be able to display and register on a surface.
If you switch the DPI settings to the highest your mouse goes, it can result in tracking of minimal movements. A gaming mouse with higher DPI settings can provide you with fast movements to make you move quick, or low DPI to make small, precise movements.
This could also depend on what type of game you are playing, but if you mainly are playing a first-person shooter or battle royale games.
When you play any other regular game with zero involvement of very fast movements, lower DPI settings may be ideal for you because in this way the mouse is not traveling so far on tiny movements and in this way allows you to play the game with consistent, stable aim. A lot of people think that DPI is similar to that of mouse sensitivity which is entirely wrong.
The operating system only compensates to the information it gets from the mice, resulting in movements that are not so smooth. A high DPI gaming mouse can easily be paired with a low sensitivity setting in both games and the OS. Higher DPI gaming mice working capability also depends upon the monitor resolution. But if you have got a 4K resolution monitor and you are playing a game in full HD graphics, a high DPI mouse will provide you a smoother movement all across the screen while you enjoy the game.
Well, mice with different polling rates have various meanings. If a mouse has got a Hz polling rate, it reports its position to the computer times every second. Similarly, if a mouse has got a Hz polling rate, it means that the mouse is reporting its position to the computer in every 2 milliseconds. A higher polling rate has a significant impact while you are gaming. A mouse with a high value of polling rate is able to decrease the lag which more probably occurs when you move your mouse and when the movements show up on the screen.
On the other hand, a mouse with high polling rate will also use more CPU resources. Like we discussed in our review of the best mouse for Apex Legends. That is also what most gaming mice are released with. A gaming mouse which supports a high polling rate usually comes with its specific software. Where you can set your own polling rate, you can set the polling rate according to your requirements easily.We purchase our own mice and put them under the same test bench, so that you can compare the results easily.
No cherry-picked units sent by brands. The Logitech G Hero is a great wired gaming mouse that feels well-made and has a premium look. It has a ton of programmable buttons, low click latency, and a wide customizable CPI range. Though it's rather heavy, it comes with five removable weights to allow you to customize the weight to suit your preference. Unfortunately, it's a rather large mouse, and people with small hands will likely have a hard time getting a comfortable grip or reaching all the buttons.
The Logitech G is a great mouse for mixed usage. It has a comfortable, right-handed design that can be used comfortably in claw or palm grip. It has a ton of programmable buttons and feels very well-built. Unfortunately, due to its large design, people with smaller hands will likely want to look elsewhere.
The G is a very good mouse for office use thanks to its ergonomic design and programmable buttons. It also feels very well-made and should be able to withstand daily use without showing signs of wear. Unfortunately, it's a wired-only mouse and the wire is quite stiff, so if you have a cluttered desk, it may be an issue. The mouse is also quite large and likely won't be suitable for people with small hands.
This mouse isn't designed for traveling. Its wired design won't be ideal to work in small spaces like on a plane and it may not fit into most laptop bags. It has low click latency, and a wide customizable CPI range and adjustable polling rate.
It also has several programmable buttons, feels very well-made, and is quite comfortable if you can get a good grip on it.
Unfortunately, due to its large size, it may not be the best option for people with small hands. While it may not have as many buttons as a dedicated MMO mouse, it still has a ton. It's also quite comfortable for people with bigger hands, meaning you can have long gaming marathons without feeling fatigue. Unfortunately, due to its large design, people with small hands may have a hard time hitting all the buttons. This mouse isn't a good option for ultra-light gaming.
While the weight is adjustable, it's still quite heavy even at its lightest, and there are better options available. The Logitech G Hero has a fairly aggressive, gamer-centric look. It looks fairly premium with a mix of matte and glossy black plastic and latex.Login or Sign Up.
Search in titles only Search in Other software only Search. Test your mouse polling rate and DPI. Posts Latest Activity. Page of 1. Filtered by:. Previous template Next. David PassMark. A new version of our KeyboardTest software tool has been released. Among other changes it now has the ability to display the mouse polling rate also known as the report rate and display the raw mouse coordinates, in addition to displaying the screen pixel coordinates.
Here is a screen shot. The default rate for a USB mouse is Hz. Meaning the mouse sends a report on it's current to the application or game times per second. If the mouse isn't moving, then no mouse movement reports reach the application. A rate of Hz means at most you can get a mouse cursor update each 8 milliseconds. A rate of Hz means an update every 2ms. Which might be critical in some games.
The DPI for a mouse represents the smallest amount of movement the mouse can detect. Generally if you have a mouse with a high DPI then you'll also want a higher polling rate in order not to miss the additional precision.
KeyboardTest can display change in the raw mouse coordinates. If you make very small movements with a high DPI mouse you can see the mouse coordinates change without the mouse moving on the screen. How much of a difference there is between the change in the raw coordinates and the screen coordinates depends on the mouse sensitivity set in the Windows control panel. It isn't alwasy true that higher DPI is better. It doesn't make sense to have a mouse with a huge DPI setting. Most monitors run at 96DPI.
So having a mouse with DPI doesn't make sense, as 1 inch of mouse movement would cover twice the width of the screen.
Having a very high polling rate also isn't always a good thing. Tags: None. All rights reserved. Yes No. OK Cancel.