PCIe1.0 motherboard with PCIe2.0 graphic card performance

Discussion in 'Motherboards' started by monkeebrain, Jul 26, 2009.

  1. monkeebrain

    monkeebrain Junior Member

    Jul 26, 2009
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    I have a PCIe1 motherboard and am thinking of buying a ATI HD 4850 card which is obviously PCIe2.0, what kind of performance hit will I get? (I checked and someone did post this recently, but I didn't see any answer).
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  3. Sylvanas

    Sylvanas Diamond Member

    Jan 20, 2004
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    Read the PCI-E sticky on this forum. Theres no performance hit. This question is asked like twice a week.
  4. Nickel020

    Nickel020 Senior member

    Jun 26, 2002
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    The difference will be small in the vast majority of cases. If you take a look at this comparison (older, and in German, but it does the job) you'll see that Crysis didn't benefit at all from PCI-E 2.0 on a 3870, the situation on a 4850 should be the same.


    Some games may see a difference like Call of Duty, but it's too small in my opinion to justify buying a new board. A faster video card with the old board will always cost less than a slower one with a new PCI-E 2.0 board and will perform better.

    There a relatively few benchmarks comparing PCI-E 1.1 with 2.0, and I think the Call of Duty 4 one was the only I remember seeing where there was a noticeable difference.

    Edit: Another link: