For example looking at these article:
AMD Fusion A8-3850 APU "Llano" On Linux
AMD Llano Graphics Battle: Gallium3D vs. Catalyst
from the Nexuiz benchmark is possible known that the performance on Intel HD3000 are better then Amd respect isn't used Gallium3d.
While the difference became huge only using the properietary driver.
AMD Fusion A8-3850 APU "Llano" On Linux
AMD Llano Graphics Battle: Gallium3D vs. Catalyst
from the Nexuiz benchmark is possible known that the performance on Intel HD3000 are better then Amd respect isn't used Gallium3d.
While the difference became huge only using the properietary driver.