DDR3 RAM is a type of computer memory that helps store and access data quickly. It stands for "Double Data Rate 3 Synchronous Dynamic Random Access Memory." DDR3 is faster and more efficient than its predecessor, DDR2 RAM, allowing computers to run multiple applications smoothly. This memory type is commonly used in desktops, laptops, and servers. It operates at a voltage of 1.5 volts, which helps reduce power consumption. With speeds ranging from 800 to 2133 MT/s (megatransfers per second), DDR3 RAM enhances overall system performance, making it suitable for various computing tasks.