DDR Memory

DDR, the short form of Double Data Rate is one kind of memory module that transfers data at a doubling rate than a SDRAM memory module. It means it transfers two data portion per clock sequence. In order to get the maximum performance, this memory needs to be used in a moderately updated computer system.

However, if a memory module is labeled with DDR-800, then it is capable of working at 400MHz speed. The label indicates the maximum range that this memory module can support. Since, the controller used for this kind of memory is located outside the module and somewhere within the CPU, so the data transfer rate may vary accordingly.

Want To Buy DDR3 SDRAM?

DDR3 SDRAM is the latest technology or model of RAM. It reduces heat and power consumption. Its clock speed is higher (faster) than that of DDR2 memory and other DDR memory products. Since DDR3 RAM runs at a higher clock speeds as mentioned previously this will make all components within the processor and graphics card run faster and benefit from receiving information at a faster rate. Therefore DDR3 RMA memory works more efficiently, giving a boost to frame rates while gaming. It also transfers data at twice the rate (eight times the speed of its internal memory arrays). It can enable higher bandwidth. DDR3 SDRAM gives a transfer rate of (memory clock rate) × 4 (for bus clock multiplier) × 2 (for data rate) × 64 (number of bits transferred) / 8 (number of bits/byte). Thus with a memory clock frequency of 100 MHz, DDR3 SDRAM gives a maximum transfer rate of 6400 MB/s. In addition, the DDR3 standard permits chip capacities of up to 8 gigabytes.