I don't know how Crysis 2 is with DX11 and high-res textures (only played the DX9 beta) but the first Crysis could stress my VGA harder than F@H, Furmark, you name it. Is usage higher with C2 than Folding?
Another thought for you, besides the point that the GPU would be at a high load using FaH or a Game. Are you putting a load on the CPU using FaH? It may be that the heat from the CPU is raising the case temps high enough that the GPU is getting just that little bit hotter. Try using FaH v7 and load both the CPU and GPU (CPU load should be to all but one core as the GPU uses one core).
The Crysis game has always been notorious for putting a maximum stress load on a gpu and the difference with F@H and the game is that the game has sudden burst of intensity for periods of time and then drops to normal to be followed by more sudden bursts of intensity so it's hard for the cooling system to keep it under control , while F@H is more of a steady demanding usage and that gives the cooling system a chance to keep it lower since it dosn't have the sudden burst.
I'll check Crysis usage, but FAH sticks at 99%. Inzone, I figure that either Precision's not reporting its 99% accurately or caqde's idea is correct, because it couldn't really be higher than 99%.
That's what I figured, and I always wondered how Crysis could get so hot between 80-95% when Folding stayed relatively cool @100%. So basically what I'm saying is that I'm useless to answer your question