DDR4 memory is a type of computer memory used in modern devices like laptops and desktops. It stands for "Double Data Rate 4," which means it can transfer data twice per clock cycle, making it faster than its predecessor, DDR3. This increased speed helps improve overall system performance, especially for tasks like gaming and video editing. One of the key features of DDR4 is its lower power consumption, which helps extend battery life in portable devices. It also supports larger memory capacities, allowing users to run more applications simultaneously without slowing down their systems.