> single threaded performance, while having taken a hit, is still growing at a healthy 25% per year. That's false. Moore's Law used to translate into increase

> single threaded performance, while having taken a hit, is still growing at a healthy 25% per year. That's false. Moore's Law used to translate into increased clock rate. In consumer CPUs, this clock rate has stagnated at around 3 GHz ever since 2002 !!! This happens due to issues with power dissipation and increasing GHz count was a waste anyway, because performance increases from higher GHz isn't linear (i.e. a 25% increase in GHz count translates in less than 25% increase in performance and the difference in top of the line consumer CPUs running at 3 or 4 GHz and over-clocked prototypes running at 8 GHz is much smaller than you'd think ;)) Ever since then, single-threaded performance has been improving by design changes (e.g. instruction-level parallelism, caching, etc.), however this doesn't scale and isn't necessarily related to Moore's Law (i.e. the processor doesn't know the code's intention and so there are hard limits to how many smarts it can pull off). https://en.wikipedia.org/wiki/Clock_rate#Historical_milestones_and_current_records https://en.wikipedia.org/wiki/Clock_rate#Historical_mileston...