Just like PhysX, I understand it can be enabled anyway, but will run on the CPU if you don't have a GPU with TrueAudio DSP.
In which case my question is whether performance will suffer greatly in a similar way as when you enable PhysX and no Nvidia GPU is present (stutters and lags that make the game unplayable).
No question is dumb if you do not know the answer.
Q: How can you move on in life if all you care about is pussy and videogames?
A: You don't.