Desktop performance, most of the time, isn't CPU-bound. HDD speed is the usual suspect. These NVidia chips will most likely ship with custom circuitry to accel

Desktop performance, most of the time, isn't CPU-bound. HDD speed is the usual suspect. These NVidia chips will most likely ship with custom circuitry to accelerate the few CPU hungry operations performed at the desktop (video codecs and 3D gfx). Keep in mind that at that point, at least 8 cores per chip will probably be the norm. Single core performance will not be that important. Edit: of course, add CUDA to the mix regarding computationally heavy tasks without dedicated acceleration.