MSI R9 280x overclock not being applied in game

Eliposin

Honorable
Jun 4, 2013
69
0
10,640
So I have overclocked my MSI R9 280x using Afterburner to a modest 1135mhz core and 1675mhz VRAM clocks. And it has proven stable in Kombustor so I went to play Guild Wars 2, where the overclock was not being applied. I cant figure out what is going on here any ideas?

I open a Kombustor test and the overclock kicks in, I open most games and the overclock kicks in, I open GW2 and.... no overclock to be seen. The card sits at 300mhz (base idle clock) core and 150mhz memory. Any suggestions?