test cpu speed turbo boost

I like to monitor my system and keep an eye on performance and temperatures to better understand the systems operation. My MacBook Pro case gets hot in a non-repetitive manner so I thought that the CPU might be using the Intel turbo boost technology and that was causing the system to get warm but I can' t find out what the CPU's speed or mode is in OS X. What utility does Apple or Intel supply to monitor this feature? I know windows has a Intel Turbo Boost Monitor application, What are we using here at Apple.

Thanks