Thats because it doesn't have predefined behavior, and its going to be stricte about your build.
Mobo TDP cpu limit, and your cooling will be main factors.
People on 160W and 200W TDP cpu mobo will exp completely different turbo experience, and thermal problems.
(on r640's, dells 'turbo' they may even allow for all cores, 100% turbo, on 100% load as long as you can cool it)