IGP-based gaming
We know the A6-3650 has a clock-speed deficit when compared to the A8-3850's CPU cores. The integrated graphics, known as HD 6530D, are not only slower than their Llano counterpart, they also feature fewer shading cores.The net effect of this double whammy is a 3DMark Vantage (default) score which is over 25 per cent slower. Yet take that score in a wider context and it's still very impressive for an on-chip IGP - easily beating out anything Intel has to offer.
Change gears to a real-world game and the gap between the two Llano chips shrinks somewhat. Again, both are way, way ahead of Intel's HD Graphics.
StarCraft II and Call of Duty: Black Ops are far more partial to CPU grunt than shaders. Also remember that the HD 6530D graphics can tap into the same (DDR3) 1,600MHz framebuffer as the HD 6550D's on the A8-3850.
Bottom line here is that while the second-rung Llano chip's graphics aren't quite as good as the headline act, they're more than capable for casual gaming at an HD resolution.