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GTX 970 and GTX 750TI for Physx

post #1 of 11
Thread Starter 
Hey guys I was wondering one thing:

I have an Asus z97k which as far as I see it supports only Crossfire...so i was wondering could I use a 750ti for separate Physx?

How can I make it work?

For example..

The Witcher 3 has Physx but DotA 2 doesn't.

If I put a gtx 750ti for the witcher 3 would be activated as well for dota 2 diminishing the performances?

How exactly can I make it work?
post #2 of 11
As far as I know, all motherboards, past the P67 chipset support CFX & SLI. So you can run Physx on that board as well as CFX any AMD card. As for selecting the Physx, in the Nvidia Control Panel, you should have an option to choose the Physx hardware from the drop down box
post #3 of 11
Thread Starter 
Quote:
Originally Posted by huzzug View Post

As far as I know, all motherboards, past the P67 chipset support CFX & SLI. So you can run Physx on that board as well as CFX any AMD card. As for selecting the Physx, in the Nvidia Control Panel, you should have an option to choose the Physx hardware from the drop down box

On my mobo is only written Crossfire (on the board itself) that's why I thought it.


But do I need a SLI bridge?
post #4 of 11
Quote:
Originally Posted by huzzug View Post

As far as I know, all motherboards, past the P67 chipset support CFX & SLI. So you can run Physx on that board as well as CFX any AMD card. As for selecting the Physx, in the Nvidia Control Panel, you should have an option to choose the Physx hardware from the drop down box

There are a few boards out there that do not support both. For instance, the motherboard in my daughters rig only supports Crossfire, no SLI.
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post #5 of 11
Quote:
Originally Posted by BulletSponge View Post

Quote:
Originally Posted by huzzug View Post

As far as I know, all motherboards, past the P67 chipset support CFX & SLI. So you can run Physx on that board as well as CFX any AMD card. As for selecting the Physx, in the Nvidia Control Panel, you should have an option to choose the Physx hardware from the drop down box

There are a few boards out there that do not support both. For instance, the motherboard in my daughters rig only supports Crossfire, no SLI.

What board is it as I was under the impression that Nvidia & AMD were done with certification of their mGPU tech to board makers.
Quote:
Originally Posted by Archetipo11 View Post


But do I need a SLI bridge?

Yes.
post #6 of 11
Thread Starter 
Quote:
Originally Posted by huzzug View Post

What board is it as I was under the impression that Nvidia & AMD were done with certification of their mGPU tech to board makers.
Yes.

So I need a sli bridge to connect the GTX 970 to my 750TI. But again does z97k support both card on SLI? I can't find any information about that on the web. Let me check again.
post #7 of 11
Thread Starter 
https://www.asus.com/Motherboards/Z97K/ no sli i suppose frown.gif so no physx dedicated card
post #8 of 11
No sli bridge is necessary if you wanted to use the 750Ti for a dedicated Physx card. The 750Ti does not have sli fingers.
Quote:
Originally Posted by huzzug View Post

What board is it as I was under the impression that Nvidia & AMD were done with certification of their mGPU tech to board makers.
Yes.

MSI Z87-G41
Edited by BulletSponge - 5/27/15 at 8:20am
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post #9 of 11
Dedicated PhysX cards aren't SLI. Just plug it in and set it up in nvidia control panel.

Im not so sure Witcher 3 uses a dedicated PhysX card, though...

Edit: Fixed typo's. Stupid autocorrect...
Edited by Blacklac - 5/27/15 at 9:00am
    
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post #10 of 11
Has anyone seen an appreciable difference with using a dedicated Physx card? When I got my 2x 780s I hooked up one of my old 570s as a Physx card. Fired up ARMA 3 and couldn't tell a lick of difference with or without the card. Maybe things have changed?
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