4 ms·
Is it roughly accurate to say that if your computing area operates at 10x the speed, you can do 10 cores worth of computing work with one core? That would free
by neltnerb 8y ago
Is it roughly accurate to say that if your computing area operates at 10x the speed, you can do 10 cores worth of computing work with one core? That would free up a lot of die area for other things, though I don't know how to guess how much that extra space would improve the other bits.
I'd kind of figure that such a technology would also speed up the RAM, but I suppose that's not true either if the underlying storage technology is too slow. But I know that's also an area of active research.
- analognoise 8y agoIn CMOS the killer is that they consume power when switching (power ends up being a square of switching frequency). So if you switched. 10x, you'd have to somehow dissipate 100x the power. Your core might be small, but the industrial-sized refrigerator needed to cool it suddenly isn't.
- baybal2 8y agoI thought recently, given how bad leakage gets at <10nm, why not to go back to RCL or TTL logic? A similar line of thinking lead to source-coupled logic being resurrected for use in high speed PHYs https://en.wikipedia.org/wiki/Current-mode_logic https://en.wikipedia.org/wiki/Current-mode_logic
- neltnerb 8y agoMy question had the assumption of something akin to vacuum transistors that allow high frequencies without the heat generation, but yes, I agree that the current technology won't scale by 10x without a generational shift in underlying approach away from MOSFETs.