Definition of DDR2
DDR stands for double data rate 2. The second generation of DDR memory, known as DDR2, was introduced in September 2003. DDR 2 can operate at greater speeds than DDR. It uses less energy, has a higher bandwidth potential, and produces less heat. DDR2 actually uses less power than DDR memory even though it runs faster. The clock speed of DDR has 100MHz-200MHz, While in DDR2 clock speed of 200MHz to 533MHz. So, It is a faster and more effective version of DDR memory.
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