DDR 3 VS DDR 4
Double Data Rate version 3 (DDR3): In DDR3, auto-refresh and self-refresh are performed to refresh its content. Generally self refresh is used for low power consumption and DDR3 consumes low power than DDR2. The clock speed of DDR3 vary from 800 MHz to 2133 MHz, where 2133 MHz is the its peak in some cases, generally clock speed is vary between 1600 to 1800 MHz. Double Data Rate version 4 (DDR4) : In DDR4, only self-refresh is performed to refresh its content that’s why it consumes less power. The minimum clock speed of DDR4 is 2133 MHz and it has no defined maximum clock speed. Let’s see the Data rate and bandwidth diagram for DDR3 and DDR4: In above figure, we can see that the clock speed of DDR3 is vary between 1600 to 1800 MHz and its bandwidth is increased but less than DDR4. And DDR4’s clock speed starts from where DDR3 left but it has no defined maximum clock speed. S.NO DDR3 DDR4 ...