Bachelor´s thesis deals with principles of graphics adaptors work and their using for common calculations by the help of graphics library and bachelor´s thesis deals also with comparing of these libraries. In the bachelor´s thesis, there is explanation of suitability of graphics adaptors usage for different types of calculations, restrictions and efficiency usage of programming method on basis of principles of graphics adaptors work. In the bachelor´s thesis, there are comparisons of graphics libraries Nvidia Cuda and OpenCL, their comparisons both in transfer rates and for simple and complex calculations. Bachelor´s thesis results are interpretations of tests and suitability assessments of utilization of graphics libraries in selected calc...