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Crosfire Hd 5770 and 5870?

Hey everyone, I got a Saphire HD 5770 and was going to crossfire it with another of the same, but in another forum someone said to go with the 5870. Will these two work in tandum? If I get the 5870, is it still worth keeping the 5770 to crossfire with a 5870? I am a little new at the video cards part of a build with this crossfire system and need your advice. What do ya'll propose?
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More about crosfire 5770 5870
  1. You can't crossfire 5770 and 5870.The cards have to be the same.(You can find more info about SLI/CF in my sig)
    However,you can get another 5770.(2 5770s will give you the performance of 1 5870)
  2. Maziar said:
    You can't crossfire 5770 and 5870.The cards have to be the same.(You can find more info about SLI/CF in my sig)
    However,you can get another 5770.(2 5770s will give you the performance of 1 5870)


    You think that will be good enough to play just about any game out there for now w/Phenom II 965 and 8 gigs ram?
    My mobo has an ATI 4850 onboard which I assume does not even work with the Safire plugged in. BTW, nice explination on SLI/Crossfire you wrote.
  3. I only play games that are joystick or game pad playable as I hate the keyboard for games.
  4. Just to verify, I am using my 42" HDTV 1080p for my monitor and do not need any higher resolution, just faster frame rate. So is it even necessary to get the other 5770?
  5. The following review shows performance for going with 2 5770s vs a 5870:

    http://www.guru3d.com/article/radeon-hd-5770-review-test/16

    If you decide to go with a crossfire setup or a more powerful video card, you may require an upgrade to your power supply.
  6. ubercake said:
    The following review shows performance for going with 2 5770s vs a 5870:

    http://www.guru3d.com/article/radeon-hd-5770-review-test/16

    If you decide to go with a crossfire setup or a more powerful video card, you may require an upgrade to your power supply.



    I have ant Antec NEW True power 750w on the way.
    Checked out the link and saw Crossfire doubles the fram rate for my HDTV and will be fine having 2 HD 5770 vs. one HD5870. Thanks for that link! :)
  7. No problem. Glad to help.
  8. Best answer
    pjmoses said:
    You think that will be good enough to play just about any game out there for now w/Phenom II 965 and 8 gigs ram?
    My mobo has an ATI 4850 onboard which I assume does not even work with the Safire plugged in. BTW, nice explination on SLI/Crossfire you wrote.

    Yep, that's a decent setup and can handle all games fine.
  9. Best answer selected by pjmoses.
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