Shrinks and power density

By: David Hess (davidwhess.delete@this.gmail.com), August 18, 2018 12:30 pm
Room: Moderated Discussions
AM (myname4rwt.delete@this.jee-male.com) on August 14, 2018 8:49 am wrote:
>
> Now, I'm not saying at all that power density is the main, much less the only, determining
> factor here, but I do suspect Intel is seriously hitting that very limit again with their
> Core lineage -- when 14nm debuted, they couldn't supply anything but ~1GHz base 4.5W SKUs
> for two quarters straight. And even those SKUs were not months, but quarters late.

Intel hit the power/area limit many generations ago not long after the Pentium 4. Plot the power versus area for the highest power grade of each processor type and it is roughly constant highlighting the importance of only including microarchitecture features which improve performance/power.
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