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    p370em PCI-E reporting 8x not 16x

    Discussion in 'Sager and Clevo' started by gazzafaegreenock, Oct 5, 2013.

  1. gazzafaegreenock

    gazzafaegreenock Notebook Enthusiast

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    I'm running games and render tests on my p370em xfire 7970m and its reporting:

    PCI-E 3.0 x16 @ 8x 3.0

    I'm wondering if this is why im getting stuttering in bf3. should this not ramp up to 16x

    tried using all drivers from 13.10b2
     
    gazzafaegreenock, Oct 5, 2013
    #1
  2. Chaosstorm

    Chaosstorm Notebook Consultant

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    Isnt that because you run Xfire? Lots of desktop boards have the same, in single modus they do x16 and at xfire they go 8x 8x.
    And I think pci express 3.0 is not the issue of stuttering.
     
    Chaosstorm, Oct 6, 2013
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  3. Montage

    Montage Notebook Evangelist

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    The performance difference between 16x and 8x is minimal. Don't worry about it.
     
    Montage, Oct 6, 2013
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  4. Meaker@Sager

    Meaker@Sager Company Representative

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    Each card on any Haswell chip can have a max of 8x/8x in a dual card configuration without adding hot and expensive splitter chips which wont really improve performance.

    This is simply a limitation of the intel chipset.
     
    Meaker@Sager, Oct 6, 2013
    #4