I have an Intel 3770k CPU and 680GTX video card. It never dips below 100% speed.
It stutters regardless of which performance profile you use. I've tried it on 8 different computers (some are faster than the 3770k and some slower). It stutters on all of them. You're objectively wrong.
There really isn't a way to say this without offending you, but the most likely scenario is that your senses aren't sharp enough to actually notice the stuttering. Ignorance is bliss, I guess.