I read an interesting paper describing the Wheel of Reincarnation - the phenomenon in which certain specialized computations are handled by coprocessors but then these computations are shifted back to the main processor as CPUs gain in performance.
General computing power, whatever its purpose, should come from the central resources of the system. If these resources should prove inadequate, then it is the system, not the display, that needs more computing power.
[Myer and Sutherland. "On the design of display processors"]
I guess this phenomenon is satisfied by general-purpose computing on GPUs that brings the graphics processor back into the 'system' instead of being a specialized co-processor for accelerating DirectX.
With GPU Ocelot, the system is getting more power.
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