Quote Originally Posted by PedantOne View Post
clock is dymanically changed from 800-1000 mhz, it depends on load and temp, it is the same like nvidia boost

typicl clocks in games is 920-960 mhz
The Anandtech article for the 280 showed that it mostly stayed at the max boost frequency during their tests, it probably has more to do with power draw than heat, though I'm sure it throttles when it gets hot.