PCIE 2 in PCIE 1

By mate
Jun 23, 2008
  1. Hi,
    All the hot new graphic cards from ati and nvdia are supporting PCIE 2
    So here is my question. How big impact (on performance) it will be using those cards in PCIE 1 slot vs using them in PCIE 2 ?
    Is it worth to buy a new MB with PCIE 2 along with the new card ?

  2. kimsland

    kimsland Ex-TechSpotter Posts: 14,525

    PCIe 2.0 effectively doubles bandwidth and offers better flexibility, while maintaining compatibility with PCIe 1.1

    Looks like the will fit PCIe 1.1 without an issue

    I don't think you should rush out a purchse a new board though.
  3. teklord

    teklord TS Guru Posts: 480

    PCI-E 2.0 is fully backwards compatible with PCI-E 1.1, but you won't be able to use the card at 2.0 speeds, only 1.1 speeds. While something of a bottleneck, this probably isn't too severe an issue unless you are playing Crysis or something similar IMO.
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