ASUS 8800GTS 320MB is it a good dedicated PHYSX card?

My main GPU is EVGA GTX460

Yeah, the 8800GTS can handle Physx ok over all if you decide to use one as a dedicated card. If you wish to see how much faster stuff is handled by it compared to just the 460 doing physx and grafx both, run something like the Batman AA ingame benchmark with Physx set to high and compare the results.

He wont be using it for games, just physx. On that the ram doesn't really matter, as the 8800GTS 320 cards have proven themselves as fine stand alone physx cards (I can even speak with experience on that as I have used them for it along with 9600 GSO 1.5GB and 8600 GT cards). The 8800 GTS and the GT 240 do perform similarly on games themselves as a stand alone card as is (GTS 320 only gets hurt at really high res due to 320 megs ram). They both perform basically about the same as a physx card. He would benefit from not having to run a pci-e cable to the GT 240 though. Price wise either of those cards will run him about the same on the used market, and if he already has the 8800 GTS, no point in ditching it for a GT 240 just to avoid using a pci-e cable.

It doesn't matter if the 8800 GTS 320 is older. It performs at Physx basically the same regardless of its age, which is why it became a fav for people who wanted to have a dedicated physx card. Like I said, if he already has one, no point in ditching it for something that will only do physx at the exact same performance level. It would just be a waste of money and time. Also, tech wise, the GT 240 is not really any more advanced over the 8800 GTS 320. They are both Direct X 10 cards at basically the same performance level.

The GT 220 would do the job, but is a bit slower at Physx then either the GT 240 or 8800GTS, enough to not be the best buy for such a task, especially considering the Gt 220 will basically cost him the exact same and perform a bit worse. Yeah, as I said above, if he already has a 8800GTS, stick with that, if not, he could get the GT 240 and benefit from not having to use a extra pci-e cable for power. Cost wise, he will end up spending about the same on either a used GT 240 or 8800 GTS 320. The Gt 220 is def not a good idea at all considering its cost versus physx performance when compared against the other two, and should just be avoided unless you can somehow nab one in the USD 20 dollar range.

Thanks everyone, i already owned 8800GTS 320MB this is my previous GPU so i decided to get a work from it though as dedicated physx card for my EVGA GTX 460, so before that only i just asked you guys opinion with this card.