Hey all new here. I have a Visiontek ATI HD 4870 512MB DDR5 Memory which I used RBE to mainly up the clock hiend settings to 990/1200.and the fan control. Currently the clocks are 800/1100 from the standard. No matter how I OC this card the FPS always is around 29/30 in 3DMark vantage. Is this normal or am I doing something wrong? thanks in advance!