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Several GPUs?

Discussion in 'Games' started by morroblivion, Jan 27, 2011.

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  1. morroblivion

    morroblivion Thread Starter

    Nov 26, 2010
    Ok quick and easy
    What exactly does adding more GPUs to a computer do, does it reduce lag and stuff.

    What I thought is: If you have a video card, say 9500GT and the game lags on it, does adding another 9500GT(or better) imrove quality? I saw a dude with 3 EVGA GTX 570s so i wanted to ask. SKyrim is coming so i want a buffed up pc for it.
  2. wiley8425


    Nov 11, 2007
    It depends. There are two options that I know of depending on who you go with: SLI or Crossfire. With an SLI (NVIDIA) setup you won't really notice a huge difference unless you play in really high resolutions and have all the bells and whistles turned on (AA, shaders, etc. etc.) As far as Crossfire (ATI) I don't really know where you see a performance gain as I haven't played around with that setup yet. You're probably better off just putting down more money for a good video card to start with then trying to set up one of those though. If you have any issues with one card or have to upgrade, you have to figure on replacing all the cards at the same time which in the end can be a lot more expensive.

    For an SLI system, the cards can run in parallel, or one can be dedicated to graphics and the other to PhysX effects. If you are thinking about going with either though, I'd suggest reading up on both and doing some research. If you're playing on a 17" monitor, neither is really going to be of any benefit. And SLI is capable of running 3 or 4 cards in parallel as well, but you're really talking a lot of money for that. Also keep in mind you need a motherboard that supports the setup and a power supply beefy enough to handle the extra cards. Not to mention the cards generate a lot of heat, so you're talking cooling issues as well.

    http://www.slizone.com/page/home.html -- SLI info can be found here and on the NVIDIA forums.
    http://game.amd.com/us-en/crossfirex_about.aspx -- Crossfire info can be found here.

    As for mine, I have a dual SLI setup and run most of my stuff at 1650 x 1080 with everything maxed. I have been able to play pretty much anything I run on it without any issues.
  3. katokato


    Feb 21, 2010
    generally multiple gpus do generate better performance, like dual cores in a cpu(5970). but this is not true all of the times.

    if i were you, i would just get a better card instead of another card. (a 5770 would be nice)
  4. Tanis


    May 29, 2006
    First Name:
    Generally, a higher end single card will outperform 2 lower cards in SLI / Crossfire.
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