How to Find Out What Graphics Card You Have
Click on "Start".
Within the "start" menu click on "Run". Run can typically be found on the right beneath "Search".
Once you have clicked on "Run" a small window will appear. Inside of the box in the small window type in "dxdiag". Be sure to type in dxdiag without using quotation marks. Once you have typed in "dxdiag" click on "OK".
The DirectX Diagnostic Tools window will open now. At the top of this window there will be quite a few tabs. Click on the "Display" tab.
Within the Display tab you will see information about your graphics card directly under "Device".