i have a question , i have seen a lot of you guys reaching 650+fps on ati tools, with my oced card to 600/1510 y get like 450fps top... why is this happening? and in games like need for speed carbon or scarface i get a max of 20fps... wtf!?

Im getting my screen replaced on friday, should i also say that the graphics card is not working properly or what? because for 3dmark i get proper results...