Good CPU for 680GTX SLI setup?

Discussion in 'Videocards - NVIDIA GeForce' started by rdupont1981, Jan 28, 2013.

  1. rdupont1981

    rdupont1981 New Member

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    So im building a new gaming rig and wondering if someone could recommend a good processor for a 680GTX SLI rig. I want to stick with an intel, as i have had bad luck with amd. Would an i5 be good enough? Or would I need a higher end i7 to prevent any CPU bottleneck?
     
  2. ESlik

    ESlik Ancient Guru

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    Intel 3770K.
     
  3. Undying

    Undying Ancient Guru

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    I7 3930k :D
     
  4. SLI-756

    SLI-756 Banned

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    760 SLI 4gb 1215/ 6800
    Delidded 3570k OCed to the max with Noctua d 14 strapped to it's back.
    Just kidding. :p
     

  5. Odellot

    Odellot Master Guru

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    This. :)
     
  6. DiceAir

    DiceAir Maha Guru

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    A pc for nasa :bigsmile:
     
  7. army_cadet

    army_cadet Member Guru

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  8. War child

    War child Master Guru

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    3570k or 3770k

    Basically it comes down to how much cash ya got!
     
  9. jcSihle

    jcSihle Member Guru

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    2600K @ 4gh would suffice
     
  10. Loophole35

    Loophole35 Ancient Guru

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    You would want pci-e 3.0 so i would say 3570K or 3770K and a good quality mobo.
     

  11. pimp_gimp

    pimp_gimp Ancient Guru

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    3770k does nicely.
     
  12. jcSihle

    jcSihle Member Guru

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    pci-e 3.0 works just dandy with a 2600k on a Z77 platform:thumbup:
     
  13. GhostXL

    GhostXL Ancient Guru

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    No it doesn't as Intel i7 2nd gen does not support PCI-e 3.0. The cards would run in 2.0. The CPU just does not have the instructions and capabilities at all.

    2500K/2600K/2700K can't do 3.0 ever period.

    You need a Z68/Z77 platform WITH an i7 3rd gen aka i7 3750/3770k.

    You can get a hack on SOME X79 boards paired with for example 3930K for 3.0 to work properly, but it's hit and miss.


    OP I hope this clears up any confusion and helps.

    For Xfire or SLI of any high end PCI-e 3.0 cards, you should have at least a 3570K and Z68 with 3.0 or a Z77 to get the best out of your cards.
     
    Last edited: Feb 1, 2013
  14. aayman_farzand

    aayman_farzand Master Guru

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    Isn't the difference between PCI-e 2.0 and 3.0 like... 1 FPS? My 2500K @4.5ghz does just fine with my setup, except for BF3 MP which is highly CPU intensive (aiming for 120fps, I always get above 60 anyway).
     
  15. Loophole35

    Loophole35 Ancient Guru

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    When running sli you drop down to 8x/8x pci-e 3.0 which has the same band width as 16x/16x pci-e 2.0. Keep in mind this is disregarding mobo that have say a plx chip or the like to give you more pci lanes but those tend to add latency and the overall results are the same as just 8x/8x.
     

  16. ---TK---

    ---TK--- Ancient Guru

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    High end tri and quad gpus benefit the most from pci e 3.0. For a single card or 2 way sli pci e 2.0 is enough. OP the 680's love high clocked k model 1155 and 2011 cpu's
     
  17. pimp_gimp

    pimp_gimp Ancient Guru

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    The latency is unnoticeable.
     
  18. gerardfraser

    gerardfraser Ancient Guru

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    I owned 680SLI 2600k 5Ghz PCI-E 2.0 (16/16) and 3770k 4.7 SLI Runs-PCI-E 3.0 (8/8) no difference in FPS in any game.

    Even played CPU 3770k 4700MHzMB

    SLI Runs---PCI-E 3.0 (8/8)
    Physx Runs---PCI-E 3.0 (8/4/4) Pyhsx running PCI-E 2.0
    No different in FPS.
    IF you do higher than 2560x1440 there may be a difference but I did not test that resolution.
    Even so 1920x1080 will give you higher FPS then compared to any resolution higher than anything above 1920x1080
     
  19. GhostXL

    GhostXL Ancient Guru

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    For today's cards yes the FPS gains are minimal. 1-5 FPS on average for any given situation.

    But really if you are buying flagship 3.0 cards, then there is very little reason to buy a 2.0 cpu/board. May as well spend an extra 50 on 3.0 compliant parts.
     
  20. zimzoid

    zimzoid Maha Guru

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    This is a bonus of the x79 platform i get full 3.0 pcie x16 on each slot, but need to apply reg patch for the 3.0 to work:)
     

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