At the recent nVision '08 technology showcase, Adam Savage and Jamie Hyneman (of Mythbusters fame) closed out the ceremony by demonstrating the vast processing superiority of a GPU over a CPU. They did so by attempting to paint the Mona Lisa in the fastest time possible using paintballs and a whole hell of a lot of compressed air.
You just got to click on the video to see for yourself. It's CRAZY!!!