You could experiment with that. Turbo core is a misleading term in my opinion. In order to conserve power and cut down on heat production, this technology holds back some of the cores while allowing the others to accelerate. For some types of applications this is a good idea because they can't use more than two, three or four cores anyway, i.e. these apps are not well multi-threaded. A lot of computer games fall into this category. Recognizing this, Intel has focused their energy on developing CPUs that produce a lot of performance per core per clock cycle. Other apps, for instance programs that render audio/video files or that do file compression/decompression and are well multi-threaded benefit from a lot of cores. This latter category is where AMD CPUs shine because AMD has focused on developing CPUs with many cores. High volume servers is another place where many cores really help.
The long and short of what I am saying is that you might cut down on the heat load of your CPU by disabling 2 or three cores and focus on overclocking the remainder as high as possible. That might give you better performance in the kind of computing you typically do.