Alright, so MegaScience is an unhelpful cigarette.
That aside...I was looking at GPU-Z - which measure's your GPU's temperature - and I noticed something.

In the drop-down box there are two GPU options listed. My AMD HD Radeon 6850 and Intel HD Graphics. Now I know Intel doesn't make graphics cards, but maybe this is an integrated card in the Intel i5 Quad-Core I have?
Then when I get my system information from Steam, I get this:

It states I only have one GPU, and the Intel HD Graphics is my driver. I kind of doubt this since I updated my GPU's drivers straight from AMD's site. So why would the GPU's driver be from Intel?
So any idea what's going on? Which is it? Just a driver or a second GPU? I'm hoping someone could explain this to me.