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4-way SLI and PhysX - Page 2

post #11 of 18
Quote:
Originally Posted by jblanc03 View Post

HI,
I am new to Nvidia and 4-way SLI
I have used AMD and ATI ever since i started building PC's
But i've learned my lesson and now i will be going Intel and NVIDIA
I need to know somthing.
With 4-way SLI can i setup just 1 gpu for nothing but Physx and have the rest for rendering?

Yes, you can assign one GPU to do PhysX and the other three to do rendering in 4-way SLI mode. It is kind of pointless if you're running 4 powerful cards like GTX-580s as PhysX is not that demanding. I would just set 4-way SLI and let NVCP choose which GPU to assign PhysX to.
     
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post #12 of 18
Are they all the same card? You will get better performance with 4 way SLI instead of 3 way/physics.
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post #13 of 18
http://www.evga.com/products/moreInfo.asp?pn=160-SB-E689-KR&family=Motherboard%20Family&series=Intel%20Z68%20Series%20Family&sw=5

That can I think. But really I would just run 4 Way and let NV decide what card to run for physX. PhysX I would say would never use more than 10% of a 580 anyway.
post #14 of 18
Thread Starter 
Quote:
Originally Posted by Blueduck3285 View Post

You indeed can, buying would not recommend doing that. If you really want 4way, find a board that can supports fifth card and get a dedicated physx gpu. Running physx in your sli can hamper it's performance.

Is this really possible?
post #15 of 18
All that extra heat and power for a 3 to 5 fps increase in a number of games one can count on ones hand. I would let the sli setup do physics. Its fast enough I mean 3 gpus or 4 gpus waiting for 1 card to finish its job. It will hold them back
post #16 of 18
Thread Starter 
my question is,

is it really possible to have 4way sli and a 5th card separate from the rest just to do PhysX?

if not,

im guessing that i can do 3-way SLI and have a 4th Separate Card do PhysX then right?
post #17 of 18
The EVGA SR-3 has 6 PCI-E slots right?
Look at this:
4xGTX 580's SLI'd
2x GTX 580's in SLI for PhysX. biggrin.gif
That would be AWESOME lachen.gif
   
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post #18 of 18
Quote:
Originally Posted by jblanc03 View Post

my question is,
is it really possible to have 4way sli and a 5th card separate from the rest just to do PhysX?
if not,
im guessing that i can do 3-way SLI and have a 4th Separate Card do PhysX then right?

No the 4th card will hold the other 3 back
Quote:
Originally Posted by asuperpower View Post

The EVGA SR-3 has 6 PCI-E slots right?
Look at this:
4xGTX 580's SLI'd
2x GTX 580's in SLI for PhysX. biggrin.gif
That would be AWESOME lachen.gif
Can you say bottleneck
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