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Crossfiring different model cards

I recently upgraded from a Sapphire 6870 to a Sapphire 7950, so now I have an extra card. Since I don't know much about crossfiring, I thought I would ask you folks if I'd have any benefit in using these two cards in a crossfire configuration?
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  1. Best answer
    http://sites.amd.com/PublishingImages/Public/Graphic_Illustrations/WebBannerJPEG/AMD_CrossfireX_Chart_1618W.jpg The 6870 will only cf with another 6870 or 6850. The 7950 will only cf with another 7950 or 7970.
  2. Best answer selected by rhgunmasta.
  3. Perhaps I'll put it to a backup build then. Thank you
  4. Your HD7950 will Crossfire with the new HD7870 LE (it's a cut-down HD7950)
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