AMD has released the new display driver for this month (8.12). The driver enables owners of 4800 and 4600 series Radeon graphics cards to have the privilege of able to utilise the stream processors in these graphics cards for more general computing tasks that are handled by CPU nowadays.
Simply said, the graphics cards will help CPU in processing, IF the software supports ATI Stream.
With the ability to harness the power of stream processors in 4800 and 4600 series Radeon graphics cards, AMD has released ATI Avivo Video Converter for free. This converter uses the ATI Stream to speed up the video conversion, up to 17x the speed of CPU conversion speed.