Is there a way to manipulate the Nvidia drivers on a MacBook Pro?

"NVIDIA supplies such tools, as you point out, as part of the drivers on Linux and Windows. There's nothing official supplied by NVIDIA for OSX. In addition, there are reports of your laptop's model overheating so it's probably not a good idea anyway.

The closest there seems to be is the Graphiccelerator tool but your card isn't under the list of supported ones.

I'd suggest this isn't possible on OSX as a result it's probably not exposed by the drivers so would be dangerous to try. I wouldn't recommend it."