How would a GT430 do as a PhysX card with two GTX460's in SLi?

As the title says guys, how will it handle? Will it be a worthing investment for my system? As the title says I have 2 GTX460's, and would like to have a dedicated PhysX card.|||see dude as u have 2 gtx 460 card there's no need for a physx card

ur is already overkill can even beat gtx 580

i think if u really want it just buy a second hand 8800gt

its a very good physx unit