http://arstechnica.com/science/2014/08/are-processors-pushing-up-against-the-limits-of-physics/

Good article from Aug 14 2014

Talks about issues with Moores Law, Carbon Nanotubes and references Intels broadwell chip. If you read the referenced link it says something that seems to be common these days.

"Intel isn’t giving out specific performance or power consumption numbers for its new processors just yet"

-Anyone know someone else who likes to do that?

"Carbon nanotubes may be small—some can be under a nanometer in diameter—but they still have physical dimensions. And photons require both hardware and energy if they're to be used for communications."

"Power use is proportional to the chip's operating voltage, and transistors simply cannot operate below a 200 milli-Volt level. Right now, we're at about five times that, so there's the potential for improvement there. But progress in lowering operating voltages has slowed, so we may be at another point where we've run into a technological roadblock prior to hitting a hard limit of physics."

"Here, we really are pushing physical limits. Even if signals in the chip were moving at the speed of light, a chip running above 5GHz wouldn't be able to transmit information from one side of the chip to the other. The best we can do with current technology is to try to design chips such that areas that frequently need to communicate with each other are physically close to each other. Extending more circuitry into the third dimension could help a bit—but only a bit."

I HAVE THE ANSWER! Anyone else?!