As for frame rate, I'm not too sure, but make sure you are hitting apply after designing you OC profile. If that doesn't work, save it to a profile and load it from there. You should try 3D Mark Vantage (DX10), to bench it because it gives you graphical scores. I overclocked my card from 797MHz (1950MHz Mem.) [scores about P6100] to 900MHz (2004MHz Mem.) and got around P6700 in 3D Mark 11 (DX11). Keep in mind that your card is a DX10 card and can only be benched by programs running a DirectX 10 engine.