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Thread: 'Designed for PCI Express Gen.3 Support' clarification wanted




  1. #1
    Join Date
    Apr 2013
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    Netherlands
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    Default 'Designed for PCI Express Gen.3 Support' clarification wanted

    I'm confused by this statement.

    GIGABYTE - Motherboard - Socket 1155 - GA-P67A-UD4-B3 (rev. 1.1)

    I have a GA-P67A-UD4-B3 (rev 1.1) with a Sandy Bridge processor. On the overview page it says there is support for PCI-e Gen.3. What does this mean?

    What I understand is that with the latest BIOS upgrade and an Ivy Bridge processor I can run a videocard on PCI-e 3.0, despite the fact that the chipset (P67) only supports 2.0.

    Let's say I upgrade to Ivy Bridge, upgrade my BIOS and buy a PCI-e 3.0 compatible GPU. At what speed would I be able to run PCI-e 3.0? Would it be x16 or x8? Currently I'm running PCI-e 2.0 x16, which has a bandwith of 8000 MB/s. I've read posts about people claiming that in that case it would only be PCI-e 3.0 x8, which is also 8000 MB/s.

    Some one please clarify this to me. I'm having an extremely hard time getting an official answer... even from Gigabyte.

  2. #2
    Join Date
    Aug 2009
    Location
    Birmingham,Great Britain
    Posts
    9,250

    Default Re: 'Designed for PCI Express Gen.3 Support' clarification wanted

    yes you would,you'd gain a whole 1% performance increase over gen2
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