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Crossfire 6870's

Last response: in Graphics & Displays
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March 7, 2012 8:44:07 PM

I've been thinking about possibly upgrading my mobo for dual 16x crossfire and sata 6GB capability. So out of curiosity I downloaded GPU-z the other day to see what my crossfire cards were running at. According to GPU-z my cards are running at 8x and 4x, not the dual 8x that my board is supposed to be capable of. Is there any reason for this? Can I change it or is GPU-z wrong?

My mobo is an Asus M2A78T-E and i'm using 2x Sapphire Vapor-X 6870's

More about : crossfire 6870

a c 84 U Graphics card
March 8, 2012 12:40:32 PM

i think u have an am2 or am2+ mobo.
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a c 1392 U Graphics card
March 9, 2012 4:15:40 PM

Check what your BIOS says about the slots. With your 6870's there is not going to be any noticeable boost from going to x16 x16 CF max 1-2%.
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a c 84 U Graphics card
March 10, 2012 4:52:13 AM

if u cf hd 6870 then you will get about 80% more performance if u can sell that gpu then sell it and buy one high end sinle gpu for example gpus like hd 7950,7970.

btw i think you will get about 80% more performance according to guru 3d.

http://www.theitdepot.com/details-XFX+Core+Edition+550W...(P1-550S-XXB9)_C14P10577.html

goodluck.:) 
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