Good point about the workload. On the other hand, typical GPU tasks seem to be scalable basically ad-infinitum as graphics moved from fixed-function pipelines t

Good point about the workload. On the other hand, typical GPU tasks seem to be scalable basically ad-infinitum as graphics moved from fixed-function pipelines to per-pixel shaders to raytracing and path tracing. So maybe GPUs still have some room until they run into the same problem as CPUs.