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Fantastic explanation. Does it surprise you how timing circuitry evolved along with with CMOS density or does that just follow? Or require a lot of engineering
by jdkee 3y ago
Fantastic explanation. Does it surprise you how timing circuitry evolved along with with CMOS density or does that just follow? Or require a lot of engineering talent?
- kens 3y agoYeah, a lot of engineering talent went into supporting faster and faster clocks. I linked to an Intel presentation from 2005 that discusses their clock circuitry in detail, and it's complicated. The slide on page 2 is interesting: it shows desktop clock frequency going up exponentially in a nice straight line from 1985 to 2003, looking to hit 10 GHz in 2005 and keep going. Of course that didn't happen at all, and clock speeds have been essentially flat since then. It's surprising how wrong this graph was at predicting the future. Link: https://web.stanford.edu/class/ee380/Abstracts/ClockingInMicroprocessorsLecture2005-final.pdf https://web.stanford.edu/class/ee380/Abstracts/ClockingInMic...
- monocasa 3y agoYeah, the end of Dennard Scaling hit the whole industry like a brick wall.