GDDR5X is a type of graphics memory designed to enhance the performance of graphics processing units (GPUs). It offers faster data transfer rates compared to its predecessor, GDDR5, allowing for improved graphics rendering and overall performance in gaming and professional applications. This memory technology utilizes a 32-bit interface and can achieve speeds of up to 12 Gbps per pin. GDDR5X is commonly found in high-end graphics cards and is particularly beneficial for tasks that require high bandwidth, such as virtual reality and 4K gaming.