Gaming graphics cards, also known as GPUs (Graphics Processing Units), are specialized hardware components designed to render images and video for computer games. They enhance visual performance by processing complex graphics and delivering smoother frame rates, which is crucial for an immersive gaming experience. These cards come with dedicated memory, often referred to as VRAM, which allows them to handle high-resolution textures and detailed graphics. Popular brands like NVIDIA and AMD produce a range of gaming graphics cards, catering to different performance needs and budgets, making it easier for gamers to find the right fit for their systems.