If you are unsure what graphics card you have on your computer you can easily find out just by following these simple steps:

Hold down the Windows key and press R.
In the Run dialog box type devmgmt.msc and press Enter.

This should bring up the Device Manager window, expand Display Adapters and you will see your graphics card listed. You can right click and select properties in order to see more details about your graphics card or its drivers and perform additional tasks.