Difference between PhysX operators and regular physics operators?

[tyFlow]

PhysX in tyFlow is dedicated to solving rigidbody simulations. The various Particle Physics-related operators are dedicated to solving 1D constraints between particles (it's functionally equivalent to Houdini's Vellum solver, if you're familiar with that). So PhysX would handle things like debris, whereas Particle Physics would handle things like ropes, wires, etc.