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Single Channel and dual channel DRAM

By lcw ·
What it means by single and dual channel DDR-2 RAM,which is more faster?

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by Jaqui In reply to Single Channel and dual c ...

speed of data transfer through the bus.

sdr single data
ddr double data

128 sd @ 233 is a 233MHz data rate
128 dd @ 233 is equivalent to about 466MHz sd
( not quite the exact speed change, but ddr is far faster than sdr )

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by willcomp In reply to Single Channel and dual c ...

Essentially dual channel is pairing 2 sticks of identical RAM that have simultaneous access to the CPU over 2 memory channels. It results in a significant increase in memory transfer rate. Crucial has a good explanation of dual channel DDR RAM at the link below.

DDR2 RAM is a faster implementation of DDR RAM with greater bandwidth. See link below for more information. The dual channel concept remains the same.


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by lcw In reply to Single Channel and dual c ...

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