Sajin
I'm guessing you were playing an older game at the time? GPU boost knows when the full clock isn't needed. An older game could cause that because it isn't demanding enough, and gpu boost knows it, so it doesn't fully clock up.

Sajin
Other things that would limit the clock would be the cards power limit, or temperatures. GPU boost also monitors those and adjusts accordingly.

Sajin
Other things that would limit the clock would be the cards power limit, or temperatures. GPU boost also monitors those and adjusts accordingly.

Sajin
If it's because you're hitting the cards max power limit then yes.

Sajin
After looking it appears your card doesn't have a xoc bios for it as it already comes with the highest power limit bios straight out of the box.

Sajin
No problem. Yes.