I thought I’d mess around and overclock my geForce 6600 PCIe w/ 256mb Video card. Original speed is 300/500mhz. in 3Dmark 2001se I get about 12500 benchmark score.

When I OCed it to 320/520mhz. The score DROPPED 5000 points and I received 7,400 points. I also noticed that it took longer to render images on the monitor.

I’m running my CPU and RAM at stock settings.

Does anyone know if this can happen? I’m just curious. Regardless of what the cause was I’m not going to keep it overclocked.