Check out what adding some graphical power can do for a processor.
We had the opportunity to try out Photoshop CS6 on an AMD A300-equipped system at SIGGRAPH. These brief videos should give you some idea of the performance of the AMD A300 APU. These machines had no discrete graphics in them and both demos are of the same machine.
These APUs should, as seen above, be able to provide fair performance under OpenGL and OpenCL, at least acceptable for light GPU-accelerated graphics work.