GPU(Graphic Processing Unit)

GPU English name Graphic Processing Unit, the Chinese translation for "graphics processor." GPU is a concept relative to the CPU, due to modern computer (especially the home system, game enthusiasts) graphics processing is becoming increasingly important, need a dedicated graphics core processor.GPU graphics card is the "heart", it is equivalent to the role of CPU in the computer, which determines the display gpuCard grade and most of the performance, but also 2D and 3D graphics card based on the difference. 2D display and 3D image processing chip, the main effects dependence CPU processing capacity, known as "soft speed." 3D graphics chips is the three-dimensional images and effects processing capabilities focused on the display chip, also known as "hardware acceleration" feature. Graphics chips are usually the largest chip on the card (and pin the most). Most graphics cards on the market today with NVIDIA and AMD graphics chip. NVIDIA's release in 1999, when the graphics chip GeForce256 first proposed the concept of the GPU. Graphics GPU to reduce the dependence on the CPU, and CPU for some of the original work, especially in the 3D graphics processing. The GPU's core technology has hardware T & L, cubic environment textures and vertex blending, texture compression and bump mapping textures, double texture four pixels 256-bit rendering engine, etc., and hardware T & L technology can be said that the GPU sign. GPU from the hardware to support T & L (TransformandLighting, polygon Transform and Lighting) graphics chips, because the T & L is a 3D rendering of an important part of its role is to calculate the polygon's 3D position and handle dynamic lighting effects, also known as " geometry processing. " A good T & L unit, can provide detailed 3D objects, and advanced lighting effects; but most of the PC, T & L most of the operation is handled by the CPU (which is the so-called software T & L), because the CPU many tasks, in addition to T & L, we should also do memory management, input response and other non-3D graphics processing, so the actual performance will be greatly reduced computation time, there are often waiting for the CPU data card case, keep up their speed of operation is far the requirements of today's complex three-dimensional game. Even though the CPU operating frequency exceeding 1GHz or higher, it's not much help, since this is the PC itself by design problems, and the CPU speed is no big relationship.