120hz refresh rate - high idle clocks & temps

Hello, I have switched from 60hz monitor to a 120hz monitor. I have seen that my gpu clocks are at full 3d mode and are causing a raise in my idle temperatures and fan speeds. I have read online that it is normal for higher clock speeds at 2d mode for stability of a 120hz monitor, but mine are running at full 3d mode at 850/1200 on my 5770 which I'm not sure is correct. I wonder if this is "normal" because I haven't found any recent information about this matter. My specs are listed on my profile.

 

I have a 7870 on a 120hz and clocks are 300/150 mhz

 

I just realized I posted in the wrong thread. I apologize ><

 

mine r good to at 120 hz
must be a driver problem .....

 

120Hz here and normal clocks.