Hardware will evolve. CPU's design constraints — programs with low parallelism and not much awareness of the memory hierarchy — have caused a bottleneck. SHA-3

Hardware will evolve. CPU's design constraints — programs with low parallelism and not much awareness of the memory hierarchy — have caused a bottleneck. SHA-3 will end up as yet another specialty instruction, with the actual programming done by the hardware vendor. For people who don't want to be dependent on that, I imagine GPUs provide a faster and more flexible alternative.