do you understand? These two issues are the key to the mouse

When it comes to the mouse now, the main points are programming buttons, wireless connection, and ultra-high DPI. In fact, the programming buttons and wireless connection just make the process more convenient, and the final DPI resolution and the less-mentioned report rate determine the real performance of this mouse.

The speed of the mouse pointer is determined by DPI

The "DPI" resolution that everyone often calls on the mouse should be accurately called "CPI", which means how many reference points are collected when moving one inch. Reflect how many points the pointer on the screen has moved, this is DPI. For example, when a 1200DPI mouse moves one inch (2.54 cm) and samples 1200 samples, the pointer on the monitor screen will move 1200 points accordingly.

Conversely, a 1200DPI mouse moves the pointer from the left end to the right end of the 1080P screen. The actual distance of the mouse movement is 4.064 cm (1920÷1200×2.54); for 2K monitors, it is 6.5024 cm; for 4K monitors, it needs to move 9.7536 Centimeters can penetrate.

As the resolution gets higher and higher, the pointer movement speed will become more and more "slower". The natural solution is to switch to a higher DPI mouse. Put the above formula backwards, for example, you want to move the mouse 5 cm to span the entire screen horizontally:

4K display (3840×2160): 3840÷(5÷2.54)≈1949

2K display (2560×1440): 2560÷(5÷2.54)≈1299

1080P display (1920×1080): 1920÷(5÷2.54)≈974

In this way, a 2000DPI mouse is enough for a 4K display, a 1200DPI mouse for a 2K display, and a 1000DPI mouse for a 1080P display (if you are used to other distances, you can calculate it yourself, and players can increase the DPI appropriately. Requirements, but should not be too high). Therefore, sometimes the ultra-high DPI mouse is the same, so don't worry about it.

The accuracy depends on the report rate

Although higher DPI solves the problem of moving distance on high-resolution monitors, it also reduces the accuracy of the mouse. A little touch of the mouse will cause the pointer to travel a lot of "roads". This is how "floating" the mouse is. The root cause. At this time, it depends on the report rate of the mouse-how often the mouse reports its position to the computer. For example, if the mouse reports its position 100 times per second, then its report rate is 100Hz. The higher the report rate, the more quickly, accurately and smoothly the movement of the mouse can be reflected.

For high-DPI and fast-moving mice, the report rate reaches 500Hz to be used, and 1000Hz is good. For example, under 2000DPI resolution, even if you are working or playing games at the speed of turning over a 4K screen per second, the 500Hz report rate can ensure that the pointer moves less than 8 pixels each time (1÷500*3840=7.68 ), how, the positioning accuracy is still acceptable.

Of course, the calculations mentioned in the article by the editor are a bit exaggerated. You don't really need to adjust your settings or buy a mouse based on this result. It is better to calculate, set and buy based on the principle of habit and enough.