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Thread: Performance loss GTX285 PCI-E 8x?

  1. #1
    Join Date
    Mar 2009
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    43

    Performance loss GTX285 PCI-E 8x?

    Hello,
    i have Asus P5Q-E with GTX285 2GB, Since the motherboard does not have two-lane x16 support, but both cards with PCI-express 8x bind, I wanted to ask how much the loss of performance if GTX 285 individually connected via PCI-Express x16.Any recommendations and suggestions are appreciated.

  2. #2
    Join Date
    Mar 2004
    Posts
    1,060

    Re: Performance loss GTX285 PCI-E 8x?

    Since it is PCIe 2.0 slots, it should not be the collapse of relevance, especially since your card is also 2GB memory.

  3. #3
    Join Date
    May 2006
    Posts
    2,340

    Re: Performance loss GTX285 PCI-E 8x?

    hi,
    turn on the old thing away, the calculation makes The 285 in passing.

    So besides my SLI also runs 16 / 8 and zero loss to 16/16.

  4. #4
    Join Date
    Dec 2007
    Posts
    1,731

    Re: Performance loss GTX285 PCI-E 8x?

    i have Asus P5Q-E with GTX285 2GB, Since the motherboard does not have two-lane x16 support, but both cards with PCI-express 8x bind, I wanted to ask how much the loss of performance if GTX 285 individually connected via PCI-Express x16.Any recommendations and suggestions are appreciated.
    Sure that GTX285 running only with 8-lane,I think in the manual but not the 1 st PCXe16 to 8-lane left behind when a 2 nd Card uses.

  5. #5
    Join Date
    Dec 2007
    Posts
    1,548

    Re: Performance loss GTX285 PCI-E 8x?

    Textures that do not fit in the VRAM, must have the PCIe interface from the main memory. This does not apply to a video card with 2 GB of VRAM, because no game with so much memory. The geometry data that the CPU or the second graphics card (PhysX) has pre-processed, but must remain on the PCIe interface. And of course this amount of data is manageable.


    If you have a little time, you can indeed make the comparison:
    • Non-PhysX application (eg GTA IV): GTX 285 on PCIe x16, 8800 GT is not built
    • Non-PhysX application (eg GTA IV): the two cards and built-in PCIe x8
    • PhysX application (eg Cryostasis): GTX 285 on PCIe x16, 8800 GT is not built
    • PhysX application (eg Cryostasis): both cards and built-in PCIe x8

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