Question about PCIe

By JamesPromIII
Jan 12, 2009
  1. I got a Geforce PNY 9600 gt for christmas and I plan on building a new pc, will I see a noticable increase from a PCI 2.0 Express slot as opposed to just a PCI 16x?

    I'm guessing that was a stupid question?
  2. NExUS1g

    NExUS1g TS Rookie

    Yep. PCI-e 2.0 doubles the speed over 1.1. Definitely worth while making sure you get 2.0.

    Oh, but not a stupid question. : )
  3. Rage_3K_Moiz

    Rage_3K_Moiz Sith Lord Posts: 5,431   +28

    No, you will not. It is the card that dictates performance, not the slot. And there is no card out there that can fully saturate the bandwidth provided by PCI-E 1.1, let alone that of its newer incarnation. PCI-E 2.0 is a standard on any motherboard with a P45 (and newer) chipset and while it's nice to have, it's not necessary for the best performance.
  4. NExUS1g

    NExUS1g TS Rookie

    Truly? I figured there would be a bottleneck at 250 MB/s. That's not a very large pipe.
  5. Rage_3K_Moiz

    Rage_3K_Moiz Sith Lord Posts: 5,431   +28

    250MB/s per lane. PCI-E x16 means 16 PCI-E lanes. So the actual data bandwidth is very large.
  6. NExUS1g

    NExUS1g TS Rookie

    Ugh. That's right. Per lane. Thanks. :)
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