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PCI-e x16 3.0 card in a PCI-e x16 x 2.0 slot?

This should work right? Also how much of a performance hit would you see?
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  1. Best answer
    for most card there will be no hit at all. on the high end new cards your looking at 1-2% at most.
    pci-e 3 just adds optimizations and opens a little more bandwidth but the reality is that most cards wont max out a pci-e 2 socket never mind a pci-e 3... so its only gonna become a factor when pci-e 3 becomes close to saturation. then you would see a 30% hit on a pci-e 2 slot (assuming the card still worked)
  2. HEXiT said:
    for most card there will be no hit at all. on the high end new cards your looking at 1-2% at most.
    pci-e 3 just adds optimizations and opens a little more bandwidth but the reality is that most cards wont max out a pci-e 2 socket never mind a pci-e 3... so its only gonna become a factor when pci-e 3 becomes close to saturation. then you would see a 30% hit on a pci-e 2 slot (assuming the card still worked)


    Oh really wow so the slots have been staying well ahead of the what the cards can put out. Makes sense.
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