I recently purchased a mouse. My old one was fixed at 1,000 DPI, so the only way that I could make a mouse more sensitive (i.e., I need to physically move my hand less to move the cursor the same distance) was to raise the sensitivity, either in-game or in the Windows mouse settings. However, my new mouse supports a variable DPI, ranging from 500 to 6400, so now I have another way of making my mouse more sensitive. But what's the difference between raising my DPI and raising my mouse sensitivity?
For example, if I am playing a shooter game using an in-game sensitivity of 1 and a DPI of 1,000 and then I switch to an in-game sensitivity of 2 and a DPI of 500, the perceived sensitivity will be the same. However, could the change in sensitivity and DPI result in any subtle changes? Like the mouse informing the computer about its position more often, or anything of the sorts?