I posted this as part of a reply in another thread, but i'll post it here:
If someone has the game and wants to look and see, here is how you might find out the answer.
Usually located in the root game directory there are the PhysX engine DLL files.
Some examples:
PhysXLoader.dll
PhysXCore.dll
NxPhysics.dll
The version number of the file should correspond to the version of the PhysX engine used in the game. The PPU currently supports version 2.3.1, 2.3.2, and 2.4.0. Bet on Soldier, for example, uses version 2.2.0 and thus is not currently supported.