2x6770 vs 6850 ??

Would i be better off running two 6770's in crossfire or just a single 6850? I am putting them on ASUS Crosshair lV Formula mobo with a AMD Phenom II X6 1090T Black Edition CPU. Resolution is 1920x1080. Gearing up for BF3.

ASUS Crosshair IV Formula AM3 AMD 890FX

AMD Phenom II X6 1090T Black Edition

XFX Radeon 6770 x2 =$210 after MIR

XFX Radeon 6850 = $140 after MIR
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More about 2x6770 6850
  1. In terms of raw performance, the two 6770s would be a bit faster than one 6850. However, the Crossfire setup would consume a lot more power, and you may have to deal with microstuttering issues. It's probably better to go for a stronger single card setup. A Radeon HD 6870 is about equal to two 6770s in Crossfire, and would definitely cost you less, and performs quite well for most titles at 1080p. A 6950 1GB is a little bit faster than the 6870, and would probably get you better performance in BF3.

    If the only CPU intensive thing you do is gaming, don't bother with the Phenom II X6. Games don't use more than 4 cores, so the extra 2 cores would be wasted. BF3 is rumored to be more heavily threaded, and might use up to 8 threads, but you would get more performance spending your money on a better graphics card, rather than on extra CPU cores, especially at your resolution.
  2. I would think BF3 would be more geared towards 4+ cores.It will definitly utilize all 6 cores but what the performance will be like we will just have to wait and see.

    For $210 you would be much better off with a 6950.It's more powerful than all of the cards mentioned here.

    XFX 6950 1GB $240=$210 after MIR + Free Shipping

  3. I'd rather go with a single powerful card.

    Less potential issues in the long run.
  4. put off your purchase by 1-2 months. Buy the Bulldozer and HD7000 combination instead
  5. I don't mind waiting for the bulldozer/HD7000 upgrade but does anyone have a link to explain more about this like price, release date, comparison, etc. Thanks for everyone's input and I will probably go with that 6950 Purple Stank.
  6. go with 6870 cf, best price/performance. or wait for 7xxx series
  7. Their is still no release date for the 7000 series.Bulldozer does but is being delayed.
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