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Pcie 3.0 card on pcie 2.1 or less

how would HIS HD 7770 iCooler edition (PCIE 3.0) run on my pc if i have a pcie 2.1 or less?

Please note that i do not know currently about pcie version on my rig. how can i find out??

so if it is less, how would the above mentioned card run??
6 answers Last reply Best Answer
More about pcie card pcie less
  1. pcie is backwards compatible. you can plug pcie 3.0 into pcie 1.0 and it will work
  2. Best answer
    You need to open your case and look at your Motherboard, it will have the model printed on it or download CPU-z and it will do the same thing without having to open the case.

    Now, to answer your question, yes, PCIE 3.0 Video Cards are backwards compatible and will work on PCIE 2.0

    Edit: alvine beat me to it, I type too slow.
  3. Best answer selected by camlover.
  4. And lastly guys, will i experience any performance drops? or any other complication? if i have a pcie 2.1 or less with this card?
  5. camlover said:
    And lastly guys, will i experience any performance drops? or any other complication? if i have a pcie 2.1 or less with this card?


    None that you'll notice. The performance difference between 3.0 & 2.1 is about 1%.
  6. dscudella said:
    None that you'll notice. The performance difference between 3.0 & 2.1 is about 1%.


    Thanx A lot, it is extremely helpful :)
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