Good point. No - I'm just looking at the values while the system is more or less idle, then I start a browser or an email client, load a website, and then shut the applications down again.
Sometimes for brief moments the indicated CPU freq in the TMonitor tool shows 2800, and the CPU-Z v. 1.54 also shows this speed. So there probably is some moderate Turbo Boosting taking place.
However, why are there no C state transitions or times after I shut the applications down again, or when I start them up?