“ddr pc2 6400 is this the same as ddr2? thats all that comes up when i look for the DDR pc2 6400”

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• Any memory that says either DDR2 or PC2 means the same thing. Likewise DDR3 is the same as PC3. The other numbers indicate the speed of the memory. You should always try to match the speed (i.e. 6400, 10666, 12800, etc) on all sticks you put in the same machine. You can mix sizes (2GB with 1GB or 4GB is ok), but ALWAYS match the speed. Hope that helps.

  Answered by tgjad 9 years ago

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• Depends on pins but seems to be same

  Answered by Goaliestud 9 years ago

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• The only differences between a DDR and DDR2 device is speed. DDR2 can operate at twice the bus speed of DDR.

  Answered by CommunityAnswer 10 years ago

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