GDDR5 memory is a type of graphics memory used primarily in graphics cards and gaming consoles. It stands for Graphics Double Data Rate 5 and is designed to provide high-speed data transfer, which is essential for rendering complex graphics in video games and applications. GDDR5 memory can transfer data on both the rising and falling edges of the clock cycle, effectively doubling the data rate compared to its predecessor, GDDR3. This memory type is known for its high bandwidth and efficiency, making it suitable for demanding tasks like 3D rendering and video playback. With a typical bandwidth of up to 256 GB/s, GDDR5 helps improve overall performance in high-end gaming and graphic-intensive applications.