The graphics processing unit (GPU) is the hardware component primarily responsible for rendering images in video games. It processes complex graphics and visual effects, enabling high-performance rendering. GPUs enhance frame rates and overall visual fidelity, improving the gaming experience. Unlike the central processing unit (CPU), which handles general computing tasks, the GPU is specifically optimized for parallel processing of graphics data. This specialization allows for efficient handling of multiple calculations simultaneously, resulting in detailed, lifelike graphics and smoother gameplay.