GPU is a system that is customarily associated with Computers, cell phones, game consoles and workstations, to be more effective at manipulating computer graphics, using modern GPUs today is the right way and arguably more effective than the purpose CPU in terms of processing algorithm block large parallel, for this GPU will be present in the form of a motherboard or video card if you talk in terms of a personal computer, and you should know that it is now 90% more notebooks and desktop computers has now been integrated with the latest GPU.
Is Nvidia which popularized the term GPU globally in 1999, with the video card GeForce (the first GPU in the world) which he marketed, in the form of a chip that is integrated with lighting, transformation, clipping, at the same rendering engine that is capable of processing tens of millions of polygons in each second, but then in 2002 appeared a company that does not want to use the term GPU to replace it as the term VPU (Virtual Processing Unit) and that it is made by ATI.
Of the two companies (Nvidia and ATI) relating to technology SLI his (Nvidia) and Crossfire (ATI) apparently allows the two pieces of the GPU is used for drawing a focused single image, in order to increase processing power better graphics, as well as cards integrated graphics is able to make better pictures as the AMD fusion along with Intel HD graphics that can handle 2D and 3D graphics from adobe flash (but still low level)
Source : http://www.hardwarekomputer.net/2014/07/apa-itu-pengertian-gpu-pada-komputer-pc.html