Dual channel DDR SDRAM is a motherboard technology used to increase memory performance, by using two channels to load data into memory. The memory controller utilizes two 64 bit data channels, resulting in a total of 128 bits, effectively doubling the bandwidth to memory. In order to achieve this, the DDR SDRAM memory modules must be installed into matching memory slots, which are usually color coded on the motherboard. Each memory module in each slot must be identical to the one in its matching slot.
External Links
Whitepaper on Dual Channel Memory
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