GTX 460 and 9800gt as physx?

[Pr3d4t0r]

what do you guys think? would there be any fps improvement in physx games? i mean is it worth it basically

 

[Liarma]

GTX460 as your GPU and 9800GT as PhysX? If you already have the 9800GT laying around, you may as well. I mean, it's not going to give you less performance, is it? But if you're going to fork out money for one, i'd be hesitant. Depends how cheap.

 

[Pr3d4t0r]

yeah i got a gtx 460 as an upgrade for my old 9800gt from xfx

but i heard that since gtx460 is better/faster physx processor than 9800gt that it reduce the performance because of slower 9800gt processing

 

[Pr3d4t0r]

looking at this:

http://www.youtube.com/watch?v=9jA-8laaPK4

im certainly putting it in

 

[Hassi94]

If you've already got it I don't see why not! It can only help (on the few games that use PhysX, anyway).

 

[JackyBoy]

I was always under the impression that having a second card as a physx card actually decreases performance. Think about it, you now have thousands of extra polygons flying round the screen, more textures, more draw calls. I think adding a second card improves the experience of the game, but doesn't improve performance, in fact it does the opposite.

That's what I thought anyway...will see if ii can find some evidence to back me up. Or alternatively if anyone has something to the contrary I would be interested too

 

[Liarma]

Why would it decrease performance? it's acting as a dedicated Physx processor taking load of the CPU and GPU. That's just like saying adding more RAM decreases performance.

 

[I Hunta x]

If the card you add in as dedicated physx is much slower then there will be a noticeable slowdown as the physx card cant keep up with the rest of the system, i cant remember who it was but someone on here did a ton of tests with i think a 480/480sli setup and tried a 9800gtx as physx iirc and just keeping it as standard sli 480 or w/e it was was MUCH better fps over all.

TL;DR aslong as the card your using isnt much slower it can be good, otherwise its not worth it.

 

[JackyBoy]

Why would it decrease performance? it's acting as a dedicated Physx processor taking load of the CPU and GPU. That's just like saying adding more RAM decreases performance.

It's not really. My point was that having a separate card being able to handle a lot more physx calculations means there will be more polygons on screen. Therefore the original card would produce less fps as it now has to do more rendering.

But the thing I have in my head about this is actually from the old days with Ageia Physx Cards I believe so you can essentially ignore all my posts

 

[Liarma]

Yeah I'm pretty sure the 9800GT is more than fast enough for PhysX calculations so you should be fine.