According to this article Processors using a core made of diamond rather than silicon have been clocked at 81 and 200ghz.
http://www.geek.com/articles/chips/81ghz-diamond-semiconductor-created-20030827/
the CPU is usualy running at about 3.2 GHz
Gigahertz (GHz) = speed
3.00 Ghz
CPU processing power is measured in GHz (Giga Hurtz)
MHz or GHz
Ghz (Giga-hertz)
1 GHz
no, false
CPU speed is measured in megahertz MHz and gigahertz GHz. Your typical processor is going to be in GHz if you have a super computer then it will be in MHz. The CPU speed can be deceiving so make sure you do your research on them.
Generally yes, but I would monitor your cpu temp closely. Anything approaching 60 degrees centigrade is too hot.
No, a 2.80 GHz processor can run calculations significantly more quickly than a 1.8 GHz processor. Therefor, a computer with a 2.8 GHz CPU will tend to run more quickly than one with a 1.8 GHz CPU, depending on other limiting factors. If you can see no difference, then something else is slowing it down, like a lack of R.A.M.
Smartphone, 200mhz - 1200 mhz Tablet, 500 mhz - 1600 mhz Netbook, 1.2 ghz - 1.8 ghz Notebook, 1.8 ghz - 2.9 ghz Multimedia/Gaming Laptop, 2.5 ghz - 3.5 ghz Budget/All in One Desktop, 2.4 ghz - 3, ghz Gaming Desktop, 3.5 ghz - 5 ghz+