Go into device manager and look at your display adapters again. see what model it lists there.
If your not sure, type dxdiag in your start menu and open DirectX Diagnostic Tool. Let it check through your system. It might ask you if you want it to check to see if your drivers are digitally signed. Just say yes and let it compile its data.
Once its finished, click on Save All Information at the bottom of the Directx diagnostic tool window. Save it to your desktop or someplace easy for you to find. It should be saved as a txt document automatically. Upload it here so we can have a look at it. Any probs just post back again.