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Confused between dual channel vs single channel memory? We pit single channel vs dual channel memory and compare bandwidth, performance, interleaving et. This, in turn, impacts the system by theoretically doubling the bandwidth. For example, for a dual channel DDR3-1333 Memory, the theoretical bandwidth on calculation comes out to be.
In the fields of digital electronics and computer hardware, multi-channel memory architecture is a technology that increases the data transfer rate between the DRAM memory and the memory controller by adding more channels of communication between them. Theoretically this multiplies the data rate by exactly the number of channels present. Dual-channel memory employs two channels. The technique goes back as far as the 1960s having been used in IBM System/360 Model 91 and in CDC 6600.
Dual-channel RAM is one version of multi-channel memory. All the versions of multi-channel RAM increase data transfer speed by adding more channels of communication between the memory and the memory controller. How does multi-channel RAM work? The RAM on the memory module communicates with the rest of the computer through the memory controller on the central processing unit (also known as a CPU or a processor) using a bus. Some memory controllers have multiple channels for communication with the memory module. This allows faster data exchange, as the data can be sent on more than one channel.
One of the check-off features of Intel’s big Haswell-E CPU is support for quad-channel DDR4 memory. But do you really need it? We test it against dual-channel memory to find out.
Dual-channel (interleaved) mode This mode offers higher memory throughput and is enabled when the memory capacities of both DIMM channels are equal. When using different speed DIMMs, the slowest memory timing is used. Dual-channel with two DIMMs. Dual-channel with three DIMMs. Dual-channel with four DIMMs. Matched DIMM configuration in each channel. Matched in symmetrical memory slots. Configurations that do not match the above conditions revert to single-channel mode. The following conditions do not need to be met: Same brand.
Dual channel RAM is simply faster than single channel RAM. In short, single Channel RAM operates on a single 64-bit data channel. Meaning it has 64bits to use at one time. Dual Channel RAM can operate up two 64-bit data channels, doubling it's POTENTIAL speed. Now the channels are not separate or independent, so please keep that in mind. Dual Channel likely will not show any huge difference in gaming or things of that nature, BUT for rendering, compiling, and encoding there's a dramatic advantage.
On systems supporting dual-channel technology, the memory data bus is expanded to 128 bits. This means that there are 128 wires connecting the memory controller to the memory sockets. These wires are labeled D0 through D127. Figure 4: How dual channel works.