Once rendering and texturing calculations are complete, the GPU moves on to a process known as rasterization. Preproduced texture files are stored in the graphics card’s VRAM, and the GPU uses these files to quickly add the necessary detail to an object to add realism and depth. Then, the GPU moves on to texturing the objects in the scene, where it applies surface details like colors, patterns, and preproduced textures to them. Using advanced rendering techniques like shading, texturing, and lighting, the GPU calculates how each pixel on the screen should look based on calculated geometry. The way artificial light sources interact with these objects is also processed here.Īfter geometry processing, the graphics card heads to its rendering phase. There, the GPU inside the graphics card crunches the data sent to it to determine positions, shapes, and orientations of these objects. The first major step is geometry processing, where the geometric shapes, their positions, and other attributes sent by the CPU are processed in a virtual 3D space. This data can include instructions for drawing shapes, colors, textures, and other graphical elements, which the CPU collects and sends to the graphics card for processing.Īfter the graphics card receives this data, it begins processing it.
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Whenever you interact with your PC, software generates data that needs to be displayed visually, like a spreadsheet update or a character moving in a video game. The way it actually does this is it starts with data processing. This includes videos, 3D graphics, and even your operating system’s desktop, all of which gets processed inside the graphics card and then sent to your computer’s display. (Image credit: Acer, Intel) How does a graphics card work?Ī graphics card works by carrying out the specialized workloads required for generating rendered images for display.
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In order to do this, it stores the data it needs in a pool of Video random-access memory (VRAM), which is separate from your main RAM memory, which is used by the computer as a whole.įinally, the graphics card is slotted into the motherboard of your PC through a PCIe connector, which allows the CPU and graphics card to coordinate their respective activities to generate the image you see on a screen. The GPU is the specialized processor whose only task is crunching the complex numbers involved in rendering realistic graphics in real-time things like shadows on a wall, or the glow of a spaceship engine. They are composed primarily of two core parts: a GPU, and a VRAM pool. They are designed to offload the graphical processing workload from the computer's central processing unit (CPU) and perform calculations specifically tailored for graphics-related tasks. Specifically, a graphics card is a collection of components that work together to render visuals on a display, such as a gaming monitor or some of the best VR headsets around.Īs such, graphics cards are crucial for tasks that require a significant amount of graphical processing power, such as gaming, video editing, 3D modeling, and scientific simulations. (Image credit: Future) What is a graphics card?
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