SLI - 2 Titans - is PCIE 3.0 important?

Discussion in 'Videocards - NVIDIA GeForce' started by boe, May 17, 2013.

  1. boe

    boe Member Guru

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    Hello,

    I googled it but can't seem to find much definitive for benchmarks on this. One person said there was a big difference but their system info shows that on the PCIe 2.0 system he didn't have SLI enabled so it is hard to take that as credible.

    I have a i7-x990 processor so I'm hoping I don't need to change out my processor, motherboard and memory just go take advantage of a couple of 780s or titans
     
  2. CPC_RedDawn

    CPC_RedDawn Ancient Guru

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    with a 990x CPU you wont be bottlenecked at all as long as you overclock it to 4.0GHz at least. But this being a six-core CPU I don't see why it would bottneck anything.
     
  3. beta-sama

    beta-sama Active Member

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    Only at high resolution you will notice difference 2.0 vs 3.0.
     
  4. boe

    boe Member Guru

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    Thanks - I typically do 1920 x 1200 is that considered high? Is there any place to see how much an effect it has in benchmarks?
     

  5. Pill Monster

    Pill Monster Banned

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    You might lose a few fps but I wouldn't say it was important.

    7970 CF gained around 10-15fps in a couple of benchmarks with PCI-E 3.0 enabled....
     
  6. boe

    boe Member Guru

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    Thanks - can you point to that source? The context of 10-15 is very important unless it is 10-15 on top of 120. If Crysis 3 only gets around 30fps - 10-15 FPS additional would be very important.
     
  7. Pill Monster

    Pill Monster Banned

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  8. ---TK---

    ---TK--- Ancient Guru

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    At your resolution the difference will be much less pronounced
     
  9. Veteran

    Veteran Ancient Guru

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    Hilbert tested pci 2.0 vs 3.0 in one of the reviews and it was 2-3fps. As you go higher in resolution the fps gains increase. I cannot remember what review it was.
     
  10. boe

    boe Member Guru

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    THanks.
     

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