CPU architecture Clock limits: http://electronics.stackexchange.com/questions/122050/what-limits-cpu-speed https://www.quora.com/Will-10Ghz-processors-be-possible-by-2020 Misc: http://cs.stackexchange.com/questions/22589/why-does-a-processor-have-32-registers http://electronics.stackexchange.com/questions/158053/what-components-or-circuitry-exist-that-can-provide-extremely-high-speed-accura