Lol, so I decided to see if the DiRT demo would run on this integrated 6100 (the listed minimum to run the game is a GeForce 6800 Ultra
) and sure enough, it worked!
That's 640x480 with all settings set to their bare minimum, and I get about 3 to 5 frames per second. AWESOME!
When my new video card comes tomorrow, I'll try it again and see how it compares at playable framerates.