seperate gpu for physx?

[Akagi]

how do you set this up, and how does it work?

do you link two non-identical cards using an sli bridge?

 

[gazjones105]

yeah, link them up with a bridge and enable multi gpu in the nvida control panel. it lets you choose your main card and the card you want to use for physx.
i use to have a gtx 260 as a main card and a gts 250 for physx. its a shame not many games use physx. its a very nice touch though.

i then went to sli gtx 460's and running them in sli was better than having one as a main card and one for physx in batman arkham asylum benchmark.

then i got a single gtx 580 and this was better in the batman arkham asylum benchmark than any other combo i had tried. (and smoother as well due to no micro stutter)

imo i would recogmend getting the most powerfull single gpu you can afford and give the dedicated physx card a miss. if more games used it then i would say yes but this is not the case. hope this helps.

my res was 1920x1080 using an i7 920 @ 4.0ghz on a x58 motherboard. 6gb ram and 850w psu.

 

[oO Stevie Oo]

iirc, you dont link the cards via SLI bridge for phys-x
I briefly looked into it when one of my old 8800's was running hotter than the other in SLI and from what I read only certain games benifit from phys-s, but you can use your more powerful card for your primary GPU and dedicate a smaller, different or same card for phys-x
I may be wrong but as I say, I briefly looked into it lol

 

[gazjones105]

there are 2 ways to do this.
1) use the sli bridge and plug the main card in to the monitor
2) dont use the sli bridge but you then have to connect both cards to the monitor. (which is a pain really)

 

[oO Stevie Oo]

Ah, I wasnt disputing what you said Gaz, your post wasnt there when I posted lol

 

[gazjones105]

It's ok.