Can't switch between Intel video card to AMD

I have a Lenovo G500 and I've been trying to switch between the Intel video card to AMD. I installed the drivers and catalyst but It doesn't show any options to change between the video cards.

It's supposed to do it automatically when needed, like when your playing games or need more graphic processing power.

You have a laptop that has Intel graphics. It does not have a video card! How did you install an AMD video card? Installing drivers doesn't install new graphics.

Check the Catalyst software, under the "Power" options.