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PhysX question

This may be a Noob question but I noticed some people's sigs that have dual gpu and another card dedicated to Physx.
Can someone comment on the advantages of this type of setup and what it's uses would be?
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  1. Best answer
    It will produce roughly a 25% performance advantage when playing those games that feature GPU accelerated PhysX. In other words, you can have a single card doing both graphics and PhysX, or you can unload the PhysX calculations onto a secondary card and free up the primary card for just graphics. This will improve framerates by roughtly 25% when playing those games that feature PhysX.
  2. So the MOBO has to support PhysX or needs Multiple PCIe slots?
  3. AtomicZ said:
    So the MOBO has to support PhysX or needs Multiple PCIe slots?

    It just needs the multiple PCIe slots. PhysX would be supported within the graphics card, but for Nvidia cards only. An SLI capable motherboard is not necessary.
  4. Best answer selected by AtomicZ.
  5. This topic has been closed by Mousemonkey
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