I found my answer, heres a peice from www.hardocp.com.
When I run 3dmark or pny analyzer their software application only is 2d!!!!
"It has hardware monitoring abilities that allow it to adjust fan speed and clock speed automatically. When in a standard 2D environment it operates at 300MHz core and 300MHz (600MHz DDR) memory. This allows it to not generate as much heat and thus producing less fan noise. When a 3D application is initialized, the card adjusts the clocks to 500/500 (1000 DDR) instantaneously and at the same time the fan spins up to full speed".