How do I determine which graphics card I'm using?

I recently read this answer on Gaming.SE, which made me realize that I actually have no idea how to tell which graphics card I have in my PC. Where can I find this information?

1. Open the system Control Panel, by typing Win+Break or going to My Computer and clicking on System Properties.

   

2. Click on your Windows Experience Rating to go to Performance Information and Tools

   

3. Click View and Print detailed system information

   

4. Scroll down to the Graphics section. If you have the proper drivers installed for your card, it should say under "display adapter type" what kind of graphics card you have.

   

Use the DirectX diagnostic tool.

1. Start, Run..., dxdiag

2. Go to the Display tab of whichever monitor you want to determine is driven by whatever graphics card.

This works on any version of Windows with DirectX, XP, Vista, 7, whatever.