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What does computer dual channel mean?

Computer dual channel is memory dual channel, which refers to the design of two memory controllers in the Northbridge (also called MCH) chip level. In these two memories The controllers can work independently of each other, and each memory controller controls a memory channel.

In these two memory channels, the CPU can address and read data respectively, which can double the bandwidth of the memory and double the data access speed accordingly.

The currently popular dual-channel memory architecture is constructed of two 64bit DDR memory controllers, with a bandwidth of up to 128bit. Because the two memory controllers of the dual-channel system are independent and complementary intelligent memory controllers.

So the two can achieve zero waiting time between each other and operate simultaneously. This complementary "nature" of the two memory controllers can reduce effective waiting time by 50%, thus doubling the bandwidth of the memory.

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