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Crossfire: Would this work?

post #1 of 10
Thread Starter 
I want to crossfire this
http://www.newegg.com/Product/Product.aspx?Item=N82E16814102888R

with this

http://www.newegg.com/Product/Product.aspx?Item=N82E16814150490

Same chipset would let me crossfire it right?

If I put the 2gb card in slot 0 it should take precedence over games that don't support crossfire correct?

And finally, as I don't have adapters, would I be able to use the DVI ports on the second card?
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post #2 of 10
Yes.

looks like a yes for all questions

Edit: stand corrected on 3rd question
Edited by Lazloisdavrock - 3/15/12 at 11:32am
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post #3 of 10
Quote:
Originally Posted by Black Magix View Post

1. I want to crossfire this
http://www.newegg.com/Product/Product.aspx?Item=N82E16814102888R

with this

http://www.newegg.com/Product/Product.aspx?Item=N82E16814150490

Same chipset would let me crossfire it right?

2. If I put the 2gb card in slot 0 it should take precedence over games that don't support crossfire correct?

3. And finally, as I don't have adapters, would I be able to use the DVI ports on the second card?


1. Yes, that will work Crossfiring between different card of the same series

 

2. The effective frame buffer is 1GB Crossfire of different VRAM But yes, disable crossfire and the effective is 2GB.

 

3. No, it will break Crossfire by default if you plug monitor to the second card other than primary in Crossfire configuration.

 

The Eyefinity 6 shipped with the adapters.

 

SAPPHIRE Radeon HD 5870 (Cypress XT) 100290SR Eyefinity 6 Edition Video Card

 


Edited by Ken1649 - 3/15/12 at 11:32am
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post #4 of 10
yes you can crossfire both card but I would not recommend it since you will be limited to 1GB Vram instead of 2GB.
    
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post #5 of 10
Thread Starter 
Quote:
Originally Posted by Ken1649 View Post



1. Yes, that will work Crossfiring between different card of the same series

2. The effective frame buffer is 1GB Crossfire of different VRAM But yes, disable crossfire and the effective is 2GB.

3. No, it will break Crossfire by default if you plug monitor to the second card other than primary in Crossfire configuration.

The Eyefinity 6 shipped with the adapters.
14-102-888-Z06?%24S300W%24

It did however, I may be using those for my 7970 I'm getting for eyefinity.

Would I benefit more from crossfire or the single card?
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post #6 of 10

 

Quote:

It did however, I may be using those for my 7970 I'm getting for eyefinity.

Would I benefit more from crossfire or the single card?
 

 

If you are asking the benefit of 5870 2gb + 5870 1gb; it depends. If you run applications that need more than 1gb frame buffer then it will not give you that benefit as it is limited to 1gb. But if you run apps that will only use less than 1gb VRam, will see the benefit from dual GPU processing power.

 

 

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post #7 of 10
Thread Starter 
This is going to be primarily a gaming rig so games like WoW, SW:TOR and more.....so I'm not sure which would be best for her.
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post #8 of 10
Well, it would work plenty fine.. But remember when Xfiring Cards they have to be mirrors of eachother.
IE: Same Clock speeds, Amounts of Ram etc. So It will only show they have 1Gb Of Ram. (Why you would need more than that is beyond me).
post #9 of 10
considering that you are instructed to use the same series gpu for xfire I would assume yes unless the evil Nvidia forces have sabotaged AMD in some way. Just order and hope for the best and hold your mouth right when you install them. also use plenty of EL wire and anti kink.thumb.gifthumb.gif
post #10 of 10
Thread Starter 
Welcome to OCN! In the future, try not to necro posts for 3 years ago smile.gif These did work in crossfire and I have since sold both cards to a buddy of mine.
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