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Graphics cards are sometimes called discrete or dedicated graphics cards to emphasize their distinction to an integrated graphics processor on the motherboard or the central processing unit (CPU). A graphics processing unit (GPU) that performs the necessary computations is the main component in a graphics card, but the acronym "GPU" is ...
Because the GPU has access to every draw operation, it can analyze data in these forms quickly, whereas a CPU must poll every pixel or data element much more slowly, as the speed of access between a CPU and its larger pool of random-access memory (or in an even worse case, a hard drive) is slower than GPUs and video cards, which typically ...
Components of a GPU. A graphics processing unit (GPU) is a specialized electronic circuit initially designed for digital image processing and to accelerate computer graphics, being present either as a discrete video card or embedded on motherboards, mobile phones, personal computers, workstations, and game consoles.
As of 2010 the fastest PC processor reached 109 gigaFLOPS (Intel Core i7 980 XE) [51] in double precision calculations. GPUs are considerably more powerful. For example, Nvidia Tesla C2050 GPU computing processors perform around 515 gigaFLOPS [52] in double precision calculations, and the AMD FireStream 9270 peaks at 240 gigaFLOPS. [53]
The SIMT execution model has been implemented on several GPUs and is relevant for general-purpose computing on graphics processing units (GPGPU), e.g. some supercomputers combine CPUs with GPUs. The processors, say a number p of them, seem to execute many more than p tasks. This is achieved by each processor having multiple "threads" (or "work ...
Integrated graphics chip moved from motherboard into the processor. Improved gaming performance; Can access CPU's cache; Each EU has a 128-bit wide FPU that natively executes eight 16-bit or four 32-bit operations per clock cycle. [20] Hierarchical-Z compression and fast Z clear [21]
Piledriver-based CPU; Northern Islands/VLIW4-based GPU (branded Radeon HD 7000 and 8000 series) Unified Northbridge – includes AMD Turbo Core 3.0, which enables automatic bidirectional power management between CPU modules and GPU. Power to the CPU and GPU is controlled automatically by changing the clock rate depending on the load.
Comparison to CPUs and GPUs [ edit ] Compared to a graphics processing unit , TPUs are designed for a high volume of low precision computation (e.g. as little as 8-bit precision) [ 3 ] with more input/output operations per joule , without hardware for rasterisation/ texture mapping . [ 4 ]