There is compelling data that we have reached a "powerwall", where transistor scaling is no longer increasing power performance. I will describe this more once the paper has been published.

Data sets from the paper

Georgia Tech dataset (data forthcoming):
This dataset is split between Georgia Tech and Raytheon. The dataset will be released after the status of the data is determined.
CPUDB dataset (powerwall.cpudb.tgz):
It is worth noting that the CPUDB uses a statistical language called R, which is basically SQL. I wrote SQL processing functions for matlab that can JOIN, NULL etc.