Our article, “Efficiency's brief reprieve: Moore's Law slowdown hits performance more than energy efficiency”, is in IEEE Spectrum this month
I and Sam Naffziger of Advanced Micro Devices just published a short article in IEEE Spectrum’s April 2015 issue, which happens to be the Moore’s law 50th anniversary issue.
Here are the first couple of paragraphs:
The graph posted above summarizes the main story, which is that peak output efficiency, which doubled every 2.7 years after 2000, is expected to continue on that pace through 2020, based on the AMD processor roadmap. The metric we call “typical-use efficiency”, on the other hand, which takes account of ever lower standby power modes, should see a faster rate of improvement. From 2008 to 2020 the rate of change in typical-use efficiency (according to AMD data) will result in about a doubling of efficiency every 1.5 years, which is similar to that for peak output efficiency in the half century preceding the year 2000.
We’ll have a longer version with more graphs and explanation posted soon.
