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Thread: “PCIe 2.0 x 16” and a standard “PCIe x 16”




  1. #1
    Join Date
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    Default “PCIe 2.0 x 16” and a standard “PCIe x 16”

    Is there much performance difference between “PCIe 2.0 x 16” and a standard “PCIe x 16”?<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>
    <o:p></o:p>
    I just purchased two Sapphire HD 2600XT, standard PCIe x 16, that will be used in crossfire mode. My MB, Gigabyte P35-DQ6, has failed and I need to buy a new MB which will have a PCIe 2.0 x 16.<o:p></o:p>
    Is it worth sending back my 2 video cards for upgraded PCIe 2.0 x 16?<o:p></o:p>
    <o:p></o:p>
    Thanks,<o:p></o:p>
    Jim<o:p></o:p>

  2. #2
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    Default Re: “PCIe 2.0 x 16” and a standard “PCIe x 16”

    In a nutshell, no. The only available video card that is actually pushing the limits of the PCI-E 1.0 specs is the new 280 GTX. If you are happy with your cards then just get a motherboard that fits your budget.
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  3. #3
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    Default Re: “PCIe 2.0 x 16” and a standard “PCIe x 16”

    The main difference is the bandwidth of the slots have been doubled from 4.2GBPS to ~8.5GBPS. There are articles on the net which will differentiate them and run tests to compare them.

    i tink tomshardware has an article on comparison between PCI-e x16 2.0 and 1.1.
    read about it there
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  4. #4
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    Default Re: “PCIe 2.0 x 16” and a standard “PCIe x 16”

    Tomshardware is one of the last sites I would use as an authority on anything. In real world use, noone can tell the difference except in a few benchmark points.
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  5. #5
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    Default Re: “PCIe 2.0 x 16” and a standard “PCIe x 16”

    right now, 1.1 and 2 are anything but different... they perform the same, because they both have a far higher bandwidth than is needed by any gpu currently being produced... as mentioned above, the gtx 280 is the only card that is even close to the limits of v1.1, but even it can only push out about 3.8-4GBps when its overclocked to its fullest potential, so no... at this point in time, the only difference between the 2 standards is theoretical and its not worth investing...yet

  6. #6

    Default Re: “PCIe 2.0 x 16” and a standard “PCIe x 16”

    Quote Originally Posted by casecutter View Post
    Tomshardware is one of the last sites I would use as an authority on anything. In real world use, noone can tell the difference except in a few benchmark points.

    I've been on the TH site quite a bit in the past 5 + years.
    Just curious, why would you say that?
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  7. #7

    Default Re: “PCIe 2.0 x 16” and a standard “PCIe x 16”

    Quote Originally Posted by overlandpark4me View Post
    I've been on the TH site quite a bit in the past 5 + years.
    Just curious, why would you say that?
    I've also heard similar comments about TH, and have asked similar questions as to why? Or for any PROOF of biased reviews(reviews which go against all other's reviews based on brand) and have recieved none...IMO you should take all reviews with a grain of salt...as I'm sure every site has someone doing reviews who shouldn't be.
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