Comment by jerf

It also hung on for some time past when it made sense. My father had a 486/33MHz that had a "turbo" button. Turning off turbo could slow the clock down but it wouldn't do anything about the fact that the 486 is still fundamentally a better processor than either the 386 or the 286, running 2-3 times faster on the same instruction stream than a 386. So even with turbo off, the programs that was nominally supposed to help with still ran much faster than they were supposed to.