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Single Channel or Dual Channel?

Hi. What is better, 2gb in dual channel or 4gb in single channel? I have windows 8.1 64 bits and the ram modules are ddr2-800mhz
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  1. Best answer
    Neither is ideal, but your system will perform better with 4GB in single-channel mode than it will with 2GB in dual-channel mode.
  2. EmoMatos50 said:
    Hi. What is better, 2gb in dual channel or 4gb in single channel? I have windows 8.1 64 bits and the ram modules are ddr2-800mhz


    If your choice is between 1x4GB or 2x2GB; 2x2GB is better.

    The memory controller is integrated in the CPU in modern processors, on the motherboard before that.
    If it has dual memory channels, than you should ideally use a kit with two dimms (e.g. 2x2GB).
    Some high end processors have up to four memory channels, so in these you should again match the number of dimms to the number of channels.
    The truth is though that memory performance is not a limiting factor in many processor workloads, so the configuration of memory isn't that important.
  3. Thanks :)
  4. VincentP said:
    EmoMatos50 said:
    Hi. What is better, 2gb in dual channel or 4gb in single channel? I have windows 8.1 64 bits and the ram modules are ddr2-800mhz


    If your choice is between 1x4GB or 2x2GB; 2x2GB is better.

    The memory controller is integrated in the CPU in modern processors, on the motherboard before that.
    If it has dual memory channels, than you should ideally use a kit with two dimms (e.g. 2x2GB).
    Some high end processors have up to four memory channels, so in these you should again match the number of dimms to the number of channels.
    The truth is though that memory performance is not a limiting factor in many processor workloads, so the configuration of memory isn't that important.



    My options are 2x1gb and 2x1gb + 1x2gb
  5. EmoMatos50 said:
    VincentP said:
    EmoMatos50 said:
    Hi. What is better, 2gb in dual channel or 4gb in single channel? I have windows 8.1 64 bits and the ram modules are ddr2-800mhz


    If your choice is between 1x4GB or 2x2GB; 2x2GB is better.

    The memory controller is integrated in the CPU in modern processors, on the motherboard before that.
    If it has dual memory channels, than you should ideally use a kit with two dimms (e.g. 2x2GB).
    Some high end processors have up to four memory channels, so in these you should again match the number of dimms to the number of channels.
    The truth is though that memory performance is not a limiting factor in many processor workloads, so the configuration of memory isn't that important.



    My options are 2x1gb and 2x1gb + 1x2gb


    I'm not sure if the second configuration will work, where one channel has two dimms and the other has one.
    No harm in trying it anyway.
    Certainly having 4GB RAM is better than having 2GB, no matter what the configuration.
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