What is the working frequency of computer memory?

Before buying a computer, we must understand the relevant configuration of the computer, memory, graphics, frequency, etc., but you know what the working frequency of computer memory? The following look at the small series to introduce you to the introduction bar.

Memory frequency is the same as CPU frequency, is used to represent the speed of memory, it represents the maximum operating frequency that memory can achieve. The memory frequency is measured in MHz (MHz). The higher the memory frequency is to a certain extent, the faster the memory can reach. The frequency of memory determines how often the memory can work correctly.

At present the more mainstream memory frequency is 333MHz and 400MHz of DDR memory, 667MHz, 800MHz and 1066MHz DDR2 memory, 1066MHz, 1333MHz, 1600MHz DDR3 memory.