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Crossfire Compatibility Question on 6950 cards

Last response: in Graphics & Displays
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March 13, 2012 10:48:07 PM

Hey guys,

I just purchased a Sapphire 6950 card: (http://www.newegg.com/Product/Product.aspx?Item=N82E168...)

SAPPHIRE
100312-3SR
Radeon HD 6950
Core Clock: 800MHz
1408 Stream Processing Units
1250MHz (5.0Gbps)
2GB
256-bit
GDDR5
DirectX 11
OpenGL 4.1
RAMDAC
400 MHz


I am already using a Gigabyte 6950 card: (http://www.newegg.com/Product/Product.aspx?Item=N82E168...)

GIGABYTE
GV-R695D5-2GD-B
PCI Express 2.1 x16
Radeon HD 6950
Core Clock:
800MHz
1408 Stream Processing Units
1250MHz (5.0Gbps)
2GB
256-bit
GDDR5
DirectX 11
OpenGL 4.1
RAMDAC
400 MHz


Its pretty much a twin card and was wondering if they should work in Crossfire? (I imagine, you only need to match up the Memory, Clock, and chipset to make it work in Crossfire with no degradation of full Crossfire performance)

Also, I know there are 6970 shader unlock mods for certain 6950 cards. I already tried it on my Gigabyte 6950 card and it worked, so was wondering if it will be fine crossfiring two shader unlocked 6950 cards.

Thanks! :D 

a b U Graphics card
March 14, 2012 12:49:12 AM

You'll be good to go with those two cards.
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Best solution

a c 181 U Graphics card
March 14, 2012 1:25:00 AM

You can CF both of them. Which ever card is lower the higher card will drop to those settings. How ever it is aways a good idea to use exacted cards and according to AMD they don't recomend doing it.

But you can in fact on AMD cards a rule of thumb is the first two numbers have to be the same for example 6850 will CF with a 6870 and 6950 will CF with 6950 but you 6970 will now run as 6950.
Good luck to you
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March 24, 2012 12:13:48 AM

Best answer selected by catcrap.
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