What is the difference between DDR3 and DDR4 RAM?

DDR3 and DDR4 RAM are two different generations of double data rate synchronous dynamic random access memory, each designed with distinct specifications and performance characteristics. One of the primary differences is their speed and bandwidth. DDR3 typically operates with a data rate range of 800 MHz to 2133 MHz, while DDR4 starts at 2133 MHz and can go well beyond 3200 MHz, allowing for faster data transfer rates and improved overall system performance. Another significant difference lies in the voltage requirements. DDR3 operates at a voltage of 1.5 volts, while DDR4 operates at a lower voltage of 1.2 volts. This reduction in voltage not only contributes to lower power consumption but also enhances the memory's efficiency and helps in managing thermal output, which is particularly beneficial for portable devices and helps extend battery life. Furthermore, DDR4 memory includes additional features that improve its performance and stability. It incorporates a more advanced memory architecture, providing better error correction capabilities and increased memory density. This means DDR4 can support higher capacity modules, allowing for larger amounts of RAM to be installed on a single motherboard. In summary, DDR4 memory offers improved speed, lower power consumption, and enhanced performance features over its predecessor, DDR3. However, it is essential to note that DDR3 and DDR4 modules are not compatible with each other due to different physical designs and specifications. Therefore, when upgrading or building a system, it is crucial to match the RAM type with the motherboard’s supported memory specifications. For the most current information on DDR memory specifications and compatibility, one might consider reviewing resources available from Patriot Memory or checking their website.