ATI 5870 and 5970 crossfire?

Hi everyone,

Is it possible to crossfire an ATI 5870 and an ATI 5970 on a ASUS Rampage II GENE motherboard?

thanks a lot :)
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More about 5870 5970 crossfire
  1. Ye....yes. HD5970=2x HD5870. Though the HD5870 will underclock itself a bit.
  2. Yes you can crossfire them. No the 5870 will not downclock itself, as long as it doesn't overheat anyway.
  3. A 5970 is two underclocked 5870s that performs equal to two 5850s. I suggest you OC the 5970 a bit so it performs equal to 2x 5870s.
  4. ok cool. As i've ordered a 5870 which should be coming on monday and i wanted to crossfire it with a 5970 instead of buying 2 5970s which is a bit over priced.
  5. megamanx00 said:
    Yes you can crossfire them. No the 5870 will not downclock itself, as long as it doesn't overheat anyway.



    Really? I don't recall that, :p.
  6. I reckon the 5870 will downclock itself because isn't crossfire basically a replication of graphics cards to boost power. The 5870 will try to replicate the 5970 so it will change its setting accordingly?
  7. When oc'ing card A, and then crossfiring it with stock card B, A will downclock itself. The HD5970 uses the HD5870 core/EVERYTHING, just downclocked.
  8. Not all the time, I remember some guy SLI'ing 2 7800GT's and his ASUS one (OC'd) kept its clock, his Zotac one (Stock) overclocked itself.
    Either way with a good PSU you can OC the 5970 just as much if not more than the 5870.
  9. I thought SLI was different than Crossfire. If my info is correct SLI dose not downclock the faster of the two cards, this was patched back in the 17#.## drivers? And Crossfire has allways downclocked the faster card. Dont know if my info is old, havent heard anything about this in awile.
  10. +1lovepoint for paperfox. <3
  11. I'm just saying, both CF & SLI can be erratic at points.
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