Runs only at 8x ???

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  1. #1
    Expensive Sushi
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    Runs only at 8x ???

    im looking at socket AM2 MOBOS and it says PCIe x16 (electrical x8)

    what does the x8 mean ??????????

  2. #2
    Great White Shark Un4given's Avatar
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    Quote Originally Posted by LILYA.LUKASHUK
    im looking at socket AM2 MOBOS and it says PCIe x16 (electrical x8)

    what does the x8 mean ??????????
    With PCI-e the socket type and the actual bus are not tied together. In this case it means there is a x16 socket, so you could plug in a video card, but the number of lanes means the speed/bandwidth will only be the equivalent of a x8 PCI-e.
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    Catfish CrazyIvan's Avatar
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    Quote Originally Posted by Un4given
    With PCI-e the socket type and the actual bus are not tied together. In this case it means there is a x16 socket, so you could plug in a video card, but the number of lanes means the speed/bandwidth will only be the equivalent of a x8 PCI-e.

    It should also be noted that there is no functional performance difference between operating at 8x and 16x at this point in time.
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    Great White Shark Un4given's Avatar
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    Quote Originally Posted by CrazyIvan
    It should also be noted that there is no functional performance difference between operating at 8x and 16x at this point in time.
    Not much for a single video card, but there when you are talking about SLI.
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    Catfish CrazyIvan's Avatar
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    Quote Originally Posted by Un4given
    Not much for a single video card, but there when you are talking about SLI.

    True true. But, I think the SLI standard required single card 16x operation splittable into 8x SLI, I don't believe it was ever the case when SLI would split an 8x bus into 2x4x, but I could be wrong.

    Even in SLI, though, there is no functional performance difference between 16x-->2x8x SLI on older SLI motherboards and "true 16x" SLI such as the 680i chipsets offer.
    Last edited by CrazyIvan; 07-27-2007 at 01:49 PM.
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