Which GPU for dedicated Physx?

[!TIMMY!]

Ok, so I have a 8800GT and want to pop in a cheap Nvidia card to do all the Phsyx work in a multi-gpu set up (and the 8800GT will do the game). I can't find any reviews that compare how different cards handle physx when paired with the same more powerful card.

So what is the worst card I could get away with just for doing physx?

I have been looking at the 9500GT 256mb as it has a silent cooling solution.

 

[Rroff]

9500GT will do ok - but be limited long term if any games actually made proper use of the physx capabilities - but with this generation of games and hardware the 8800GT can probably do the physics fine without any real performance impact as well as doing the rendering.

 

[Wizardskills]

I would just run it off of your 8800gt. I decided to test haveing a dedicated card a few months back and it wasnt worth it. When i set my 8600gts to do physx i got arround P8000 in vantage. When it put physx on the ultra i got arround P9000. Physx isnt used in many games yet and if you do happen to play a game with it on your 8800gt will cope

 

[muon]

I would just run it off of your 8800gt. I decided to test haveing a dedicated card a few months back and it wasnt worth it. When i set my 8600gts to do physx i got arround P8000 in vantage. When it put physx on the ultra i got arround P9000. Physx isnt used in many games yet and if you do happen to play a game with it on your 8800gt will cope

Problem is that vanatge tests them separately in which case the ultra will always do better. What happens when you have both physx and a graphically intensive scene?

 

[!TIMMY!]

hmmm, im also looking at the 8800GT 256mb as a possibility, but not sure if this will be a waste of £50 as Wizardskills said.

 

[reflux]

This is a total waste of money. Unless you are doing GPGPU development, don't waste cash on an extra card.