DDR3 SDRAM is short for Double Data Rate Three Synchronous Dynamic Random Access Memory. It is a RAM technology utilized for high speed data storage in a computer or in other digital electronic devices. It is part of the SDRAM (Synchronous Dynamic RAM) family of technologies, the third generation of DDR SDRAM and one of the many DRAM (Dynamic RAM) implementations.

It is an evolutionary enhancement over its predecessor, the DDR2 SDRAM (Double Data Rate Two Synchronous Dynamic Random Access Memory).

Improvements of DDR3 SDRAM

Because of DDR3 SDRAM’s increased clock rate, its bit rate is higher. It also has reduced power utilization due to its 90mm fabrication technology.

The words double data rate refer to the capacity of the computer bus to transfer data both in the falling and rising edges of the clock signal. This is the signal utilized in coordinating the actions of two or more circuits.

The words synchronous dynamic RAM on the other hand, specify that this type of computer memory is in the solid state. This means that systems and devices are based entirely on a semiconductor.

Benefits of DDR3 SDRAM

Using a DDR3 SDRAM provides the following benefits:

  • It has the ability to transfer I/O data 8 times the speed of the memory cells it holds. As a result, it has a higher peak throughput and quicker bus speeds than past memory technologies.
  • The DDR3 standard works with microcircuits that have capacities ranging from 512 megabits to 8 gigabits, thus facilitating a maximum memory module size of up to 16 gigabytes.
  • DDR3 SDRAM has higher bandwidth (rate of data transfer or bit rate) performance, reaching up to approximately 1600 MHz.
  • There is an increase in performance even at low power.
  • DDR3 SDRAM has improved low power features and a much cooler thermal design.

Disadvantages Of DDR3 SDRAM

DDR3 SDRAM usually has higher CAS (Column Address Strobe) latency. However, it is compensated by a higher bandwidth, thus increasing overall performance under specific applications. Currently, it is also more expensive compared to its predecessor, the DDR2 memory.