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Today's,consumer graphics boards incorporate highly integrated, parallel-working graphics processing units (GPUs) with transistor counts and performance that exceed those of CPUs. In addition to playing the latest 3D video game, you can use the graphics board's power to solve computational problems in science or engineering work. Current GPUs are programmable and flexible enough to transfer computational problems from the CPU to the GPU.Why shift computational work to the GPU? The short answer is processing power. As we demonstrate, using a standard graphics board can considerably speed up the overall performance of tasks such as computing Fourier holograms in real time.