Double Data Rate (DDR).

This is a discussion on Double Data Rate (DDR). within the Tech Board forums, part of the Community Boards category; During rising edge OR falling edge of a clock, data are taken once within one clock cycle in an electronic ...

  1. #1
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    Question Double Data Rate (DDR).

    During rising edge OR falling edge of a clock, data are taken once within one clock cycle in an electronic circuit such as D-flipflop. Meanwhile for double data rate like DDR RAM, during rising edge AND falling edge of a clock, data are taken once respectively in one cycle. Am I right?

    Does AGP 2x works the same way as I mentioned earlier?
    How do AGP 4x and 8x card work?

  2. #2
    Registered User TravisS's Avatar
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    Wow, that's actually a good question and I have never bothered to think about it before

    What I found here just shows the various transfer rates and such, but I get the idea that it works differently that DDR, possibly a wider data bus? It just seems that with 8X AGP, 4 transfers on the rise and 4 on the fall, would be a bit tough. Honestly though, I just don't know

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