DDR2和DDR3之间的区别

DDR2和DDR3都是双倍数据速率(DDR)的版本。
DDR2代表Double Data Rate版本2，而DDR3代表Double Data Rate版本3。

DDR2和DDR3平方测量了相同技术的增强，并进一步增加了每个时钟周期的知识转移量。
DDR2 RAM每个周期提供四次知识转移，而DDR3将增加八次。向前传输100Mhz的基本时钟速度，DDR RAM可以提供1600 MB / s的信息量，DDR2提供32200 MB / s，而DDR3提供6400 MB / s。通常很多会更好。

DDR2和DDR3之间的区别：

S.NO	DDR2	DDR3
1.	DDR2 stands for Double Data Rate version 2.	Whereas DDR3 stands for Double Data Rate version 3.
2.	The cost of DDR2 is less than DDR3.	While it’s cost is higher or more than DDR2.
3.	Performance-wise, DDR2 is superior than DDR2.	While it is average in terms of performance.
4.	Supply voltage for DDR2 is greater than DDR3 which is 1.8 volts.	While for DDR3, supply voltage is 1.5 volts.
5.	DDR2 consumes more power.	While it consumes less power.
6.	The speed of DDR2 is slow in comparison of DDR3.	While the speed of DDR3 is fast in comparison of DDr2.
7.	In DDR2, there is no memory reset option.	While in DDR3, there is provided memory reset option.
8.	Clock speed of DDR2 vary from 400 MHz to 800 MHz.	Whereas the clock speed of DDr3 vary from 800 MHz to 1600 MHz.