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If you guys are into Mice, you probably heared that high DPI/HZ results in less lag, smoother mouse movements etc.
For example 125hz mice have roughly 8ms lag. Its simple math.

1000ms:125hz = 8ms
1000ms:250hz = 4ms
1000ms:500hz = 2ms
1000ms:1000hz= 1ms

Its very clear that 1000hz has lower lag then 125hz etc.
Now, mice also have DPI. "DPI is the standard used to measure the mouse sensitivity, expressed as the number of DPIs (dots per linear inch) that a device can detect. By changing the DPI, you can instantly adjust pointer speed for precision tasks, such as in-game targeting or photo editing. The greater the number of DPIs, the higher the mouse sensitivity, and the faster the pointer speed."
In many videos and tests people are claiming that high DPI reduces the total system Input Lag. Usually 1600DPI-3200DPI is the best sensitivity.
There are many Videos you can look up, and all those people got better results with high DPI.
YouTubers like Optimum Tech, Battle(non)sense tested that and both got the same results.
You can think what you want about those tests and if those are accurate. Nobody can have the perfect test bench. Nothing is perfect on this world! But I think it's not a coincidence all those people got the same results!
Its proven that 400DPI/800DPI has massive lag when moving the mouse slowely. For example if you do sniping or very precise shots.
But if you move your mouse really quick, the lag is almost gone.
By increasing the DPI to 1600 you elminate most of the lag!

I played a really long time on 400DPI/800 DPI and I always noticed that there is some kind of lag. It was always there no matter how fast I move my mouse. And I wanted to test this myself, if its true.

Now we get into the interesting stuff!!!
There is a program called "MouseTester" you can download on Github. You can test your mouse Polling Rate, DPI etc in that program.
I just randomly tested my mouse today and I looked for differences between 400DPI, 800DPI and 3200DPI.

I FOUND SOMETHING REALLY INTERESTING!
When I really slowely move my mouse, I can see the lag in the program! I dont know if this is even possible and maybe someone can clarify me! But I got very constant results. I always got lower lag on 3200 DPI and MUCH more lag on 800DPI.

Testing Method:

1. Close every backround program except your mouse software
2. Choose your DPI and HZ setting you would like to test
3. Open "MouseTester" as Admin
4. Press "F2" one time
5. Move mouse slowely in a straight horizontal line
6. Press F2 again to stop the scan
7. Press "Plot" to see the results
8. In the results tab, look at the buttom left. Under "Plot Type" search for "Frequency vs Time". You can also use "Interval vs Time".

Of course I did some screenshots to back this up.



Test 1 (800 DPI, very slow mouse movement)

Test 2 (3200 DPI, very slow mouse movement)

I made 10 tests for each DPI setting and tried to move the mouse as slow as I can! The Screenshot above represents a average result.

Test 3 (800DPI, fast mouse movement)
When moving the mouse at a faster speeds, the lag is almsot completely eliminated, even on low DPI!


Its questionable if this is a good way to test this. But I got very constant results. I always got more lag on low DPI.
Is this a coincidence? I dont think so.
I hope this gonna help people.
Please post your opinions about my discovery and if you have questions, post them in this thread!
(sorry for my bad english, I hope you understand my class 3 basic english)

Thanks for your attention!

Sorry, in the first picture its around 112 MS lag and not 105. Gotta wear my glasses! xD

As I see, the time is simply the lag of the current mouse frequency. When moving the mouse really slow, the frequency is pretty low too. In the first picture you can see, the first dot only has 10hz! 10hz is around 100ms input lag! Increasing the DPI also increases the very first polling rate "steps". I think thats the case here.

everything over 800DPI is nonsense…. you can check for example simple why he then play on 400DPI if there is so much advantage as you claim?

MegaMelmek wrote: ↑

29 May 2022, 15:39

everything over 800DPI is nonsense…. you can check for example simple why he then play on 400DPI if there is so much advantage as you claim?

Did you read my post? And checkout the videos from Battle(non)sense and Optimimum Tech. They describe it perfectly!
https://www.youtube.com/watch?v=6AoRfv9W110
From my understanding, higher DPI and low Game Sensitivity = Less pixel skipping, smoother gameplay and less lag (as I showed in my post)
Here you can see pixel skipping on low DPI and high game sensivity. You can also test it yourself and see:
https://www.youtube.com/watch?v=OYjEdFfmrts

MegaMelmek wrote: ↑

29 May 2022, 15:39

everything over 800DPI is nonsense…. you can check for example simple why he then play on 400DPI if there is so much advantage as you claim?

viewtopic.php?f=2&t=9341&p=75438&hilit=400DPI#p75438
viewtopic.php?f=2&t=10037&p=81169&hilit=400DPI#p81169

all these have seen long time before…. And i do not belive them one bit is nice testing thats true but they are not gamers…
GamerNexus Linus and so on they know absolutely nothing about gaming and they testing gaming rigs can you belive it?
All these latency tests are great in perfect world. At the end of the day we talking abou 4ms thats nothing. Just imagine that F1 testing pilot will be som student from high school with engine and aerodynamics knowlege and not the real pilot.
I am dealing with latency that high that DPI cant solve it and where it come from no one know so why we need test like this?

MegaMelmek wrote: ↑

29 May 2022, 16:53

all these have seen long time before…. And i do not belive them one bit is nice testing thats true but they are not gamers…
GamerNexus Linus and so on they know absolutely nothing about gaming and they testing gaming rigs can you belive it?
All these latency tests are great in perfect world. At the end of the day we talking abou 4ms thats nothing. Just imagine that F1 testing pilot will be som student from high school with engine and aerodynamics knowlege and not the real pilot.
I am dealing with latency that high that DPI cant solve it and where it come from no one know so why we need test like this?

Why do you think its wrong? They deliver precise results and there are 100 of people who got the same results. You can literally go into a game and see it yourself. Set your DPI to 400 and use high game sense. You get very bad pixel skipping.
And its not 4ms, its a 90ms Difference in my example!!! At least when moving the mouse slowely. Thats a pretty big difference if you ask me.
Just because something doesnt matter for you, or you THINK its "fake" doesnt mean it is!
I think this is the wrong platform for you.

MegaMelmek wrote: ↑

29 May 2022, 16:53

I am dealing with latency that high that DPI cant solve it and where it come from no one know so why we need test like this?

I'm standing on the pavement in skis that ski lubricant cant solve it and why is there no snow no one know so why we need ski lubricant like this?

MegaMelmek wrote: ↑

29 May 2022, 16:53

all these have seen long time before…. And i do not belive them one bit is nice testing thats true but they are not gamers…
GamerNexus Linus and so on they know absolutely nothing about gaming and they testing gaming rigs can you belive it?
All these latency tests are great in perfect world. At the end of the day we talking abou 4ms thats nothing. Just imagine that F1 testing pilot will be som student from high school with engine and aerodynamics knowlege and not the real pilot.
I am dealing with latency that high that DPI cant solve it and where it come from no one know so why we need test like this?

Can I ask, what System Specs do you have?