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GPU bottle necking

By ViperCDX
Jun 27, 2013
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  1. Hi,I have a core i5 3450, gtx 660 and gigabyte b75 d3h mobo
    If I add another gtx 660, will my processor bottleneck my sli graphics card??
     
  2. cliffordcooley

    cliffordcooley TechSpot Paladin Posts: 6,121   +1,523

    You do realize they SLI larger cards and even run tri and quad configurations.

    If you had an i3, you might should worry about bottlenecking. However with an i5, I think you are good to go. Even then it would depend on how CPU intensive your games are.
     
  3. ViperCDX

    ViperCDX TS Rookie Topic Starter Posts: 84

    I was thinking about battlefield 4,AC 4 etc
    also what is micro stutter?
     
  4. cliffordcooley

    cliffordcooley TechSpot Paladin Posts: 6,121   +1,523

    Wikipedia answers that better than I ever could

    Micro stuttering
     
  5. slh28

    slh28 TechSpot Paladin Posts: 1,925   +170

    Looking at the specs of your mobo it only supports Crossfire and not SLI so you might want to do a bit more research on that.

    Microstuttering isn't that much of a problem nowadays especially on Nvidia cards.
     
  6. cliffordcooley

    cliffordcooley TechSpot Paladin Posts: 6,121   +1,523

    Forgive my ignorance on this subject, but is that not where the bridge comes in?

    I was under the impression that when a motherboard supports SLI or XF, the bridge may not be necessary (depending on GPU design).
     
  7. St1ckM4n

    St1ckM4n TS Evangelist Posts: 3,473   +622

    Bridge just links the cards together, so the cards can use full bandwidth on output, and not I/O between each other.

    At least that's my understanding. :D
     
  8. ViperCDX

    ViperCDX TS Rookie Topic Starter Posts: 84

    @slh28- yeah you are right, it only supports cross fire, bad luck :(
     
  9. slh28

    slh28 TechSpot Paladin Posts: 1,925   +170

    Hmm not sure, never heard of anyone not using an SLI or CF bridge (since most cards come with one anyway).

    For higher end cards and/or high resolutions and refresh rates you definitely want a bridge, I actually use two CF bridges between my two cards because a single bridge isn't enough for 2560x1440 @110Hz.
     


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