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Question: PCI-e modes

By matchu
Nov 29, 2009
  1. Hi all. Question concerning pci-e 2.0 x16 lanes and gpu's.

    If a mobo has 2 x16 lanes, but one of them runs at smth like x8 mode, does that mean that a GPU placed onto it will be half as fast? (let's say in a situation where you had two cards in x-fire).

    Thanks :)
     
  2. hellokitty[hk]

    hellokitty[hk] Hello, nice to meet you! Posts: 3,435   +145

    No just the lane, which is still plenty fast enough.
     
  3. matchu

    matchu TS Enthusiast Topic Starter Posts: 100

    really? so modern video cards don't take up all the bandwidth of a pci-e 2.0 slot?
     
  4. hellokitty[hk]

    hellokitty[hk] Hello, nice to meet you! Posts: 3,435   +145

    Nope, it won't negatively affect performance.
     
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