When I'm using XFCE I can set mouse pointer speed to Acceleration: 5.0 | Sensitivity: 4 px. When I have to switch KDE I can use same settings because these are simply configuration tools for X11.Gnome has sliders with no numbers. Different between Gnome 2.x and 3.x. Checking with xset also doesn't work because it gives different outputs without any change in Gnome settings.
Setting mouse speed in Gnome just like in other desktop environments
gnome;x11