While the GeForceFX GPU runs hot, Gainward's passive cooling system works fairly well at keeping the GPU well under the 100C level. If you're just sitting at the desktop doing basic work and web browsing, the card will run absolutely silent with zero noise. If you fire up a game which taxes the GPU, it will still run in silent mode. Even when we had a GPU intensive game up and running, it took roughly 8-10 minutes for the card to reach the 100C level. When the GPU hits 100C, the fan will kick in (which really isn't loud at all either), and keep running until the GPU reaches a "cooler" temperature of 80C. Taking the GPU from 100C to 80C takes roughly three minutes, most people won't even realize the fan is running.
