Computer

What’s the difference between DDR1,DDR2,DDR3,DDR4?

DDR = Double Data Rate Double rate synchronous dynamic random access memory. Strictly speaking DDR should be called , people are used to calling it DDR

What is DDR and what is it used for?

DDR is the abbreviation of Double Data Rate SDRAM, which means double-rate synchronous dynamic random access memory.Memory can also be called . It is a memory space that the CPU can directly address and is made of semiconductor devices. Memory is characterized by fast data access rates. Memory is the main component of a computer, and it is relative to external storage. The programs we usually use, such as operating , typing , game software, etc., are generally on external storage such as hard disks, but this cannot be used for this . To really use its functions, we usually enter a piece of text or play a game, in fact, all in memory.

How do I tell the difference between DDR1,DDR2,DDR3,DDR4?

DDR1 uses a voltage of 2.5V, frequencies of 200, 266, 333, and 400. The capacity is 128M, 256M, 512M, 1G.

DDR2 uses a voltage of 1.8V, which doubles the of the first generation. Its frequency is 533,667,800. The capacity is 512M, 1G, 2G.

DDR3 uses a voltage of 1.5V. The frequency is four frequencies of 1066, 1333, 1600, and 2133, and the capacity is 1333, 1600, 1866, 2G, 4G, and 8G. It is used more smoothly when forming dual channels. And third-generation memory modules are still used by many .

DDR4 uses a voltage of 1.35. The frequency is 3000, 2666, 3200, 2400, 2933, etc. The memory capacity is 4G 8G 16G, etc. This is the latest version of memory chip. There are great prospects for development.

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