[Static Jak]

So I've never done anything with SLI or ever had a second card.

But I was thinking about using one of my older GPUs as a dedicated card for physx since they're doing nothing but sitting in their boxes anyway. My current card is an MSI GTX 670 and I've have two cards laying around that I could use. As far as I know, you don't need anything big for a dedicated physx card but I haven't a clue what's best or whatever.

So, I have a 560Ti (MSI Twin Frozr) and then a much older PNY GTS 450 (this one)

I'm guessing the 560Ti is bit overkill but not sure about the 450. Also, I've a 750 Watt PSU if that means anything.

 

[GerBem]

If you put the 560Ti in, you can select that as the PhysX card in the Nvidia settings http://en.kioskea.net/faq/15755-nvidia-select-your-default-physx-processor

Edit: You can also use the GTS 450, I don't really know how much 'power' a PhysX processor needs. Try it out

 

[Static Jak]

Quote:

Originally Posted by GerBem

Edit: You can also use the GTS 450, I don't really know how much 'power' a PhysX processor needs. Try it out

That's what I mostly want to know. If the 450 is enough, that'd be great since less power used. Anything in particular to test this outside of normal benchmarks?

 

[Juggalo23451]

No reason to do it really. Just use the 670 but it is up to you. I would just sell the cards and have some extra cash or just keep them for a back up.
Your physx card score will be lower if you use a lower end card.

 

[GerBem]

You can test your Physx card with Fluidmark

http://www.ozone3d.net/benchmarks/physx-fluidmark/

 

[nleksan]

I would use the 560, as PhysX performance seems to be linked to the number of CUDA cores relative to the primary card/s.

 

[TheAntiMartyr]

I have a stock GTX 560 that I used for a short while in conjuction with my GTX 670. It worked very well. I took it out due to the additional noise and the fact that only a few games I play support Physx. The 560Ti would be my choice.

 

[honam1021]

I have the GTX 680 and I have a GT 220 sitting around.Should I use it as a physx card?

 

[Juggalo23451]

Quote:

Originally Posted by honam1021

I have the GTX 680 and I have a GT 220 sitting around.Should I use it as a physx card?

No, watch the video I posted above.

 

[CrazyCorky]

I was considering picking up a 660TI for a dedicated physx card but came to the realization that there aren't any games out there that really use it? Can someone name a few that actually do use it!?

 

[Vagrant Storm]

Quote:

Originally Posted by CrazyCorky

I was considering picking up a 660TI for a dedicated physx card but came to the realization that there aren't any games out there that really use it? Can someone name a few that actually do use it!?

The only game that I truly feel Physx is actually used in a manner that actually adds to the game is Borderlands 2. Even then if you are playing the game with PhysX set to low running on the CPU you aren't missing anything huge...but you are missing something that is pretty nice. Every other GPU enabled PhysX game I've seen isn't anything special and you likely wouldn't even notice if you accidentally disabled PhysX half way through the game. As far as I am concerned, Borderlands 2 is the only PhysX game that exists.

 

[BulletSponge]

Hawken has some excellent Physx effects second only to that seen in BL2, IMO.