Will i be Bottlenecked?

Discussion in 'Videocards - AMD Radeon Drivers Section' started by madne$$, Dec 5, 2011.

  1. madne$$

    madne$$ Master Guru

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    HMM, well if it doesn't they i shall purchase a new case and wack everything inside.
    One quick question, if the mobo goes is this known to take other parts with it.

    I know a PSU normally does but unsure about a mobo?
     
  2. Dublin_Gunner

    Dublin_Gunner Ancient Guru

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    Disregard - wrong thread lol
     
    Last edited: Dec 5, 2011
  3. madne$$

    madne$$ Master Guru

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    Oh no, i haven't decided on which GPU to go for, I still have the Ati HD5670 in pc atm and plan to use this with the E8400. The GPU were 6870/6950 < unsure which ones but from the previous posts going to wait intill the I7 CPU and mobo drops in price before i buy.
     
  4. Dublin_Gunner

    Dublin_Gunner Ancient Guru

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    Of course you could buy your new GPU knowing that you'll be building a new rig at some stage, and that you'll already have a decent GPU for it.

    Really up to yourself :)

    Oh and on the mobo - you want to check the case. A lot of those prebuilt machines may only take mATX boards, which will restrict your decision somewhat.

    You'd also want to check that a 6950 would even fit in the case.
     

  5. deluxe

    deluxe Guest

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    Obviously, as then the system is GPU bottlenecked hence all cards have the same fps across most quad-cores.
    They use a dual-gpu setup to show the CPU bottleneck.
     
  6. Dublin_Gunner

    Dublin_Gunner Ancient Guru

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    That makes no sense lol


    Its the multi-gpu setup that's being bottlenecked, not the game!

    Anyone doing a decent xfire / sli or 6990 type setup knows you need a fast CPU to feed it.

    This is NOTHING to do with the game, but the GPU setup that's causing the issue.

    That really is a stupid way to try show a CPU bottleneck in a game where none exists.
     
  7. madne$$

    madne$$ Master Guru

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    erm.. yeah after you saying that i probably might, unsure which one though.
    Yeah the mobo and case is for ATX so i should have no problems there.
    The only thing i will have to do is move the HDD and Disk drive up to prevent any problems.

    Madne$$
     
  8. deluxe

    deluxe Guest

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    Uh yeah, what I'm trying to say is: They remove all bottlenecks. May have worded it wrong, i'm not english.
    With one GPU the bottleneck is on the GPU, and with 2 GPU's there is no more bottleneck but it shows which CPU is weaker.
    Weak CPU's are the bottleneck in a dual-gpu setup.
    You are saying it yourself: The dual setup is being bottlenecked. By what? By the CPU.
     
    Last edited: Dec 5, 2011
  9. ---TK---

    ---TK--- Guest

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    yes you are correct 1 gpu on bf3 will show a gpu bottleneck. ie all major cpu`s being within 1-3 frames of each other. and yes by adding another gpu into the mix the bottleneck is now shifted back to the cpu`s.
     
  10. Dublin_Gunner

    Dublin_Gunner Ancient Guru

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    But this would be the same for ALL games lol

    You two really aren't getting it - its not the CPU/Game causing the bottleneck, but the multi-GPU setup not being fed with data fast enough.

    This is NOT a CPU bottleneck with BF3.

    If you go in either direction, of course you will hit a bottleneck - but the engine is NOT CPU bound.
     

  11. deluxe

    deluxe Guest

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    I especially noticed this when my i5 760 @ 3.8 apparantly was not powerful enough to feed 2 6950's... They were both at 60% while CPU was 100%.
    Now i'm on 1 6950 with 99% GPU usage and 60-70% CPU usage.
     
  12. ---TK---

    ---TK--- Guest

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    BF3 is very easy to be gpu bottlenecked at various settings, as you know when this happens you have to choice to remove the bgpu bottleneck to accurately test various cpus in this game
     
  13. madne$$

    madne$$ Master Guru

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    tbh just go with a high end CPU and stick in a Mid/High end card to prevent any bottleneck from either part. You won't play it on max out high ssettings but still be able to play it without no problems

    Comment above about BF3
     
  14. zhengzhoudave

    zhengzhoudave Guest

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    Just to add some feedback - my system specs are relatively fine - although I do get a serious bottleneck on L.A Noire because it only uses one core at 100% the problem here is multi threading and that's down to developers and not builders!

    I think 800w should be fine for pretty much any single GPU - apart from those crazy top spec ones that need 1800w in Xfire or SLI
     
  15. phaedrus2129

    phaedrus2129 Guest

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    A quality 550W is more then adequate for any single GPU.


     

  16. Dublin_Gunner

    Dublin_Gunner Ancient Guru

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    Yep, even overclocked with an overclocked CPU.
     
  17. bnmbnm

    bnmbnm Guest

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    your cpu will surely bottleneck.
    my i3 at stock bottlenecked 6850 in bf3, gpu worked 80% while cpu 100% but after oc cpu to 4.3ghz its back to normal usage in gaming gpu 100% cpu 50-80%
     

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