Something it wrong because that low of streaming resolution and preset should not affect performance.
That RAM speed can't be right, Fastest DDR3 ram speed at the moment is 3000MHz. Anyway, all I was getting by is that APUs perform much better with faster RAM so make sure your ram is set to at least the clocks you bought it at.
Also, I dont know if you've tried the newest drivers out...15.5 I believe.
Sorry was looking at the wrong thing.
Sorry, How do I know it's at the clock I bought it at? :x
AMD auto-detect told me I have the latest drivers, but I'll try manualling installing the 15.5