If you are a hardcore overclocker, Tegrak Overclock is one of the apps that must install on your Samsung Galaxy S II. Tegrak Overclock is able to overclock Samsung Galaxy S2 GPU Mali-400 MP compare to SetCPU which can overclock CPU only. By the way, root access is needed.
Samsung Galaxy S2 GPU Mali-400 MP has 2 speedsteps at 160 Mhz and 267 Mhz. It runs at 160 Mhz most of the time and switch to 267 Mhz on 3D games when needed. However, you can force it to run at 267 Mhz all the time with Tegrak Overclock to improve 3D gaming performance. Or overclock up to 400 Mhz with Tegrak Overclock Ultimate (Note – this will fry your SGS2 GPU). Personally, I can’t feel any different in 3D games performance. But you might want to try it out yourself to find out…
Download Tegrak Overclock at Android Market here.