http://phys.org/news/2014-02-silicon-germanium-chip.html

798 Ghz transistor! 200 Ghz higher than last record setter. Mind boggling speed!

Getting close to Terahertz speed! 0.8Thz already. Won't be long now for terahertz transistors!

Reminds me of Star Trek, someone says, what is the frequency of transmission? answer, 1000 Ghz. Scotty: We haven't seen frequencies that low in decades🙂