OC that 2500K up to 4.8GHz or 5GHz to help it some. Do you have the latest driver or beta driver? The 275.50 beta driver was unstable for me at higher clocks so I'm using the WHQL 275.33 driver. Make sure you have a good clean driver install. In the Nvidia Control Panel go to the Manage 3D settings and change any setting that offers a performance setting, Disable AA & AF, etc... Try temporarily disabling some services that aren't needed to just run the benchmark and go online to post your score (write the adjusted services down so you can restore the settings). Go to msconfig and disable any startup programs that aren't need to run the benchmark (write them down). Restart the system and run your benchmark from a "Fresh" restart.