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PCI-E 1.0 compatible with ~300$ worth PCI-E 3 graphic cards?

Hi all.
My dad bought a new computer and its motherboard is Asus H81-A.
I understand this motherboard only supports PCI-E version 1.0.
Will it affect graphic performance if I bought and installed a good (~300$) PCI-E 3.0 graphic card in it? If it will, how much?
Thanks in advance.
3 answers Last reply Best Answer
More about pci compatible 300 worth pci graphic cards
  1. Hello,

    The H81 chipset supports PCI-Express 2.0, and so the video card shouldn't be affected by bandwidth from the slot.

    Hope this helps
  2. Best answer
    Nekoshet said:
    Hi all.
    My dad bought a new computer and its motherboard is Asus H81-A.
    I understand this motherboard only supports PCI-E version 1.0.
    Will it affect graphic performance if I bought and installed a good (~300$) PCI-E 3.0 graphic card in it? If it will, how much?
    Thanks in advance.

    It is a newer h81 mobo.


    BUT it only seems to run at 1.0 x16 speeds.





    This is it right?

    Basically for gaming a 1.0 x16 slot is roughly equal to a 2.0 x8 slot.

    http://www.anandtech.com/show/5458/the-radeon-hd-7970-reprise-pcie-bandwidth-overclocking-and-msaa

    A 1.x x16 slot doesn't seem to bother a 7970 all that much.

    You are going to loose fps yes, for a single card though it is livable.
  3. Thanks maxalge.
    That's a really good answer.
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