Overclocking Radeon HD 6520g

It is the discrete graphics for the A6 - 3400m, is there anyway to boost the core clock? Sapphire Trixx didn't work. I already have the cpu overclocked for max of all 4 cores to 2.3ghz and boost to 2.7ghz with K10stat. I monitored things and during a game, the cpu cores never passed 40% and the graphics mostly stayed at 100% gpu load, meaning that's the bottleneck.

I am not worried about over heating since I have a dual fan cooling pad underneath the computer.

Still haven't found anything... Is it even possible?

Afterburner will not overclock it. Every time I type 450 mhz for core and hit enter, it instantly goes back to 400mhz. Weird thing is, when I open settings in afterburner, it shows 2 6520g's even tho only 1 exists.