Category:Games without hardware acceleration
From PhysX Wiki
Majority of PhysX SDK based games are performing all physics calculations on CPU, running with decent performance regardless to GPU manufacturer. All console and mobile PhysX games are using only software mode by default.
Adding a dedicated NVIDIA GPU and switching PhysX modes in drivers won't affect framerate or visual fidelity of such titles.
Ageia PPUs, however, were able to provide slight performance boost even in CPU PhysX games.