Choosing a video card, low end sli/crossfire vs high end?

Hello, I'm choosing a video card for my new system that I'm building. The system will be used primarily for games like arma 3/arma 2, crysis 2, skyrim and bf3. I will be playing at 1080p and I wish to play at very high graphics settings. Which of the following set ups would be better?
2x 7850s in crossfire
1x 7970
1x gtx 670
Are these decent setups, or should I look at other cards?
I live in Australia, for pricing and such. I will be overclocking, and would prefer the price for the video card to be under $600
3 answers Last reply
More about choosing video card crossfire high
  1. 2 HD 7850s in CF should be slightly better than a single HD 7970 or GTX 670.
    But in order not to feel negative scaling, AMD driver problems and all the hassle of CF/SLI....get a single powerful card.
    HD 7970 performs the same as GTX 670, but GTX 670 costs around $50 less, all HD 79xx/78xx are great overclockers.
  2. I am not much in favor of dual cards when a great single card will do the job.

    a) How good do you really need to be?
    A single GTX560 or 6870 can give you great performance at 1920 x 1200 in most games.

    A single GTX560ti or 6950 will give you excellent performance at 1920 x 1200 in most games.
    Even 2560 x 1600 will be good with lowered detail.
    A single 7970 or GTX680 is about as good as it gets.

    Only if you are looking at triple monitor gaming, then sli/cf will be needed.
    Even that is now changing with triple monitor support on top end cards.

    b) The costs for a single card are lower.
    You require a less expensive motherboard; no need for sli/cf or multiple pci-e slots.
    Even a ITX motherboard will do.

    Your psu costs are less.
    A GTX560ti needs a 450w psu, even a GTX580 only needs a 600w psu.
    When you add another card to the mix, plan on adding 150-200w to your psu requirements.
    A single more modern 28nm card like a 7970 or GTX680 needs only 550W.

    Case cooling becomes more of an issue with dual cards.
    That means a more expensive case with more and stronger fans.
    You will also look at more noise.

    c) Dual cards do not always render their half of the display in sync, causing microstuttering. It is an annoying effect.
    The benefit of higher benchmark fps can be offset, particularly with lower tier cards.
    Read this:,2995.html

    d) dual card support is dependent on the driver. Not all games can benefit from dual cards.

    e) cf/sli up front reduces your option to get another card for an upgrade. Not that I suggest you plan for that.
    It will often be the case that replacing your current card with a newer gen card will offer a better upgrade path.
  3. Always go with single High than two low if u buying new one, The only reason to sli/cfx is if u already had one card and added the other much latter (It price wise because the price of old card usually better)

    If u can get 670 go with it if not go to 7970 or 680. (If u don't hurry u can wait for new 7970 SKU that supposed to use new high performance wafer, but it might just a rumor)
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