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  1. #1
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    SLI Mode Comparison Question

    Alright, I'm getting ready to build a new PC this summer, but being a (poor) AGP user, I know very little about PCI-E. I do know that in the world of SLI motherboards, some will run 16x with a single card, and 8x/8x with two cards, then I saw the ASUS A8N32 Deluxe SLI, which will run 16x/16x SLI, I see these numbers, but specifically what do they mean in terms of performance?

  2. #2
    Member PWatterson's Avatar
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    Actually, the 16x bandwidth for both cards has virtually no performance increase. 8/8 is plenty.
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  3. #3
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    Well, I appreciate the help on that aspect of the question, but the other half of the question is, what exactly does that effect? what, specifically, is the difference between 16x/16x and 8x/8x?

  4. #4
    Member PWatterson's Avatar
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    Quote Originally Posted by Shadow6107
    Well, I appreciate the help on that aspect of the question, but the other half of the question is, what exactly does that effect? what, specifically, is the difference between 16x/16x and 8x/8x?
    I am no expert, but I believe it determines the amount of data that can be transferred at once. It is something like the bus width or something, but like I said I am no expert when it comes to stuff like this.
    Personal: Intel E3110 - Biostar TPower I45 - 2x2Gb Mushkin Redline - eVGA GTX260 Core 216 - WD VelociRaptor 74Gb RAID 0 - Seasonic S12II Bronze 520w - Antec Twelve Hundred
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  5. #5
    Member azu's Avatar
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    Dec 2005
    8x refers to the bandwith of the PCIE bus. theoretically 16x>8x. but as you know, we are unable to ever take full advantage of the entire bus. From early results, the 16x actually showed lower performance value as it has two nforce4s which needed to work together.

    This is similar to agp 1x, 2x, 4x,8x, pci mode

    lol. just clearifying.

    in terms of performance 8x8x or 16x16 there is little negligable performance difference.

  6. #6
    Member Neuromancer's Avatar
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    Actually the 16/16 board is not a good investment right now because nvidia didnt ADD 16 lanes to get the 16/16. they took it from other places.

    The radeon 3200 I believe is true 16/16 and the next nvidia chipset will include it also.

    I could be TOTALLY wrong though

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