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Graphics 670 on PCIE2

Discussion in 'Hardware' started by boltonuk007, 28 Nov 2012.

  1. boltonuk007

    boltonuk007 What's a Dremel?

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    Hi guys,
    As you can see from my sig Iam running a GEN3 board with a 2500K. My question is if I bought a 670 and didn't upgrade to IB thus not enabling PCIE3, would I be losing out? Would the card saturate my bus or would I be looking at something much more powerful than a 670 for that to happen?
    Thanks.
     
  2. Cei

    Cei pew pew pew

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    You'd be needing a 690 to be even approaching PCIe 2.0 saturation, so don't worry about it :)
     
  3. boltonuk007

    boltonuk007 What's a Dremel?

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    Just as I thought/hoped!
    Ta
     
  4. Silent_Raider

    Silent_Raider What's a Dremel?

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  5. boltonuk007

    boltonuk007 What's a Dremel?

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    Excellent, thanks for that, always nice to have some data to feel extra reassured!
     
  6. rollo

    rollo Modder

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    Duel 690s bearly hit pci e 16 2 bandwidth
     
  7. boltonuk007

    boltonuk007 What's a Dremel?

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    Then it poses the question as to why PCIE3 has been issued now then, would a SATAIII card with multiple SSDs test it?
     
  8. Silent_Raider

    Silent_Raider What's a Dremel?

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    1. To add a feature to sell Z77 motherboards.
    2. To prepare for future cards.
    3. For PCI-Express SSD Cards. Current Gen are PCI Express 2.0, but they can saturate the PCI Express 2.0 lanes.
     
  9. rollo

    rollo Modder

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    That's pretty much why its been done

    People running raid cards with pcie and 10+ssds for like 2-3gb read/ write anandtech ran a few tests. 10 Samsung 830s 256gb hit around 3gb/sec read write.
     
  10. boltonuk007

    boltonuk007 What's a Dremel?

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    Well SSDs were the only thing I could think of, for those it makes sense
     
  11. The_Crapman

    The_Crapman World's worst stuntman. Lover of bit-tech

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    Because Intel and it's mobo partners needed to give people a reason to upgrade to ivy from sandy and the z77 chipset other than 'it's a tiny bit faster while using a tiny bit less juice' and trying to bypass the fact it doesn't overclock quite so well.
     
  12. rici1241

    rici1241 Minimodder

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    Another reason was to reduce the number of lanes for the same performance.
    Instead of having to use an 8x slot, add-in cards can achieve the same bandwidth with a 4x slot.
    This reduces the number of traces required on the PCB, which in turn creates more PCB space, while saving money.

    Very little can max out 16x PCI-E 2.0, but when it is surpassed, manufactures don't want to be waiting for another revision. Modern SSDs are prime examples of this, already at the limit of SATA 3
     
  13. Xtheblackfox

    Xtheblackfox What's a Dremel?

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    Haha, yea. You will be fine!!
     

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