Sujoy Roy, from ESReality,has tested out the world's first benchmarking system on seventeen different gaming mouse, from the Razer Diamondback to the Creative Fatal1ty 2020!
Having decided to benchmark mice, there was several ways of going about it. The simplest method was to plot a graph of mouse response vs movement speed. Mouse response would be measured in counts per second (from Windows DirectInput) and movement speed would be measured in metres per second. DirectInput is easy to access so measuring the response of a mouse is fairly simple to do, and can be done very accurately. The tough part is measuring how fast the mouse is physically moving at the same time. After considering and discarding various options, I decided in the end to create a test setup where the mouse would be held stationary and the mousepad would be moved at a constant speed.
Check out Sujoy's comprehensive findings as he examines and dissects some of the most popular gaming mice.

Source : ESReality