BAD HARDWARE WEEK

Historically, the first computer to achieve terascale computing (10^12, or one trillion operations per second) was demonstrated in the late 1990s. In the 2000s, the first petascale computer was demonstrated with a thousand-times better performance. Extrapolating these trends, we can expect the first exascale computer (with one million trillion operations per second) to appear around the end of this next decade. In Computer nanostores January article:
From Micro-processors to Nanostores: Rethinking Data-Centric Systems, the author explores that idea.

BAD HARDWARE: Calculation alone uses only 3% of needed energy. 30 times more energy is used for data moving. Look at the processor. 30 times of die area is used for cache than for processing itself. The same thing repeat in the data center.
In Computer nanostores January article:
From Micro-processors to Nanostores: Rethinking Data-Centric Systems, the author explores that idea.
Seems that in energy efficiency use we are deep in the diminishing return phase of computing age.