AFAIK the issue is mostly that QnQ is very "reluctant" to return to 100% levels. Of course, if you're using something like SiSoft Sandra CPU Burn then that'll likely push it there. If you're doing something more cycle-use-bursty it likely won't.
If you'd like to see what happens on your own machine, there are diagnostics tools at rightmark (and their version of CnQ seems to have grown out of both the diagnostic tool and a dissatisfaction with what CnQ was doing).
It's free software (well, there's a cheap-ish upgrade to a "pro" version that adds so few features that it's more of a way to make a donation).
What are you using for a diagnostic?
All that said, this is not something for the technically inexperienced. It typically requires finding/reading a CPU mfgr's spec for the particular chip you have and then deciding what multiplier/voltage combination you want to use for each level of CPU use (the AMD docs, at least, have a range for each at each level, and my experience is that the typical chip will be a bit flaky at the lowest voltage levels for each multiplier, although you might "get lucky" - the same issue as with overclocking). My experience is also that it's most difficult to test at the "mid" levels - things like Sandra push usage to the max. Some chips that do fine with an even-lower-than-spec voltage at their lowest multiplier need mid-spec-range voltages at mid and/or top multipliers. Basically a PITA to get "cranked down" as low as you can go.
Also, this does not work for overclocking - except possibly for the AMD "black box" (unlocked multiplier) CPUs, which I haven't tried.
And don't expect any "magic" - this won't let you run an 89W processor at 25W
Anyway, if you're looking for a "quote" just go check out rightmark, try the free stuff (which is likely all you need). I'm just an end-user, have put this stuff on a couple of AMD based machines, it seems to work - and it seems to be an appropriate solution for machines that both run 24x7 and run a server OS that doesn't deal gracefully with being suspended (e.g. win 2k server).
There's lots more quotes on the forums there, from folks who have used this product in a lot more situations than I have. I haven't touched my settings (or upgraded the product) on any of the PCs I have this working on for at least six months, so go there for more current info - rightmark CPU forum
Oh - as I vaguely remember, that "find processor specs" step was supposed to be an automated process at install. I had"oddball" processors (basically whatever the fastest 25W processor was at the time of purchase), so maybe I'm overstating the difficulty.