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6870 Crossfire issues

Last response: in Graphics & Displays
April 15, 2012 3:32:55 AM

Hey everyone
I recently crossfired my 6870's and have encountered some strange problems. My performance with both cards with crossfire enabled is worse than just a single card.
Both cards work perfectly and I am running the latest CCC and application profiles. GPU-Z also recognizes both cards and so does Furmark.
I play on a 21.5 inch display at 1920 by 1080. Most games I play have lost about 30-40 frames when crossfire is enabled; except league of legends where I can only get 1 FPS :cry: 

I have no idea what to do V sync is not turned on in any of the games I play. help???? :cry: 

ASrock 970 extreme3
AMD FX-8120
2x AMD 6870's(Sapphire and ASUS)
8gb of G.Skill Ram
OCZ ZT 750w PSU.

League of legends
Mass Effect
Starcraft 2
Crysis 2

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