“Configurable Joints are extremely customizable. They expose all joint-related properties of PhysX”
I am a little confused by this. Does this mean that the various Joint components in Unity use PhysX for physics simulation and not Unity’s own physics engine?
And does this mean then that this will not work on a computer that does not have a PhysX capable Nvidia video card?
PhysX is Unity’s physics engine. It will work on any platform that Unity supports. You’re thinking of PhysX acceleration using Nvidia-only hardware, which Unity does not do. (FYI, it is quite fast even on the CPU.)