S there a difference between ddr2-800 128mb and ddr2-800 pc6400 memory

I'm attempting to upgrade memory from 6GB to 8 and wish to replace two 1gb DDR2-880 sticks with 2GB ones. I found these 128MB modules on ebay along with other pc-6400 at a lesser price but don't know if they will work or make a significant difference, Thanks for any info
crazyg
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More about difference ddr2 128mb ddr2 pc6400 memory
  1. Welcome to Tom's Forums! :)

    Frequency is only part of the equation, you need to match both the CAS Timings and Voltage to the 2X2GB kit already installed. Ideally, the same exact part-number if going to 4X2GB is the safest option.
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