my dell has AMD radon graphics but it run on intel graphics? [duplicate]

Run the AMD Catalyst Center, go to the switchable Graphic Application settings, click on Add application and select the exe of the game and set it to high performance.

Now download the tool call OpenHardwareMonitor and add the AMD Radeon HD to the gadget. if the GPU is not used you see this:

enter image description here

If the GPU is used you see this:

enter image description here

is your AMD card now used?