If you have one those spiffy new ATI RADEON cards, you might want to check out these screen savers from ATI, because there is nothing quite like watching something as useless as a screen saver max out a machine. But at least now you can say, "Aha! All that is now off-loaded to the video card!" Runs on the following cards:

• RADEON 9800 Pro Mac Special Edition 256MB
• RADEON 9800 Pro Mac Edition 128MB
• RADEON 9800 Pro 128MB
• RADEON 9700 Pro 128MB
• RADEON 9600 Pro 64MB
• MOBILITY RADEON 9600 64MB

Seems they ported all their DirectX 9 demos over to OpenGL. (via Todd @ What Do I Know - Enjoying)