4 ms·
Question--what's to be lost by making your features sufficiently not dense to allow them to cool at full tilt?
by jcgrillo 2y ago
Question--what's to be lost by making your features sufficiently not dense to allow them to cool at full tilt?
- AlotOfReading 2y agoMesses with timing, among other things. A lot of those structures are relatively fixed blocks that are designed for specific sizes. Signals take more time to propagate longer distances, and longer conductors have worse properties. Dense and hot is faster and more broadly useful.
- jcgrillo 2y agoInteresting, so does that mean we're basically out of runway without aggressive cooling?
- joha4270 2y agoNo. Every successive semiconductor node uses less power than the previous per transistor at the same clock speed. Its just that we then immediately use this headroom to pack more transistors closer and run them faster, so every chip keeps running into power limits, even if they continually do more with said power.
- positr0n 2y agoGood discussion on how at multi GHz clock speeds, the speed of light is actually limiting on some circuit design choices: https://news.ycombinator.com/item?id=12384596 https://news.ycombinator.com/item?id=12384596