no one has the answer?

I posted but the post didn't appear, so I'm posting this post to see will this one appear.

I have ATI Radeon R 280 and AMD FX 8350.. so I don't think that is why my CPU render is faster than the GPU render.. Could it be because of the scene setup? There are no textures, just a cube solid..

I recently installed the trial version of Indigo renderer and with it Blendigo.. I tested the speed with the most basic scene (startup default scene of Blender) and CPU render (500 samples, 2m43s) is 13 seconds faster than GPU render (500 samples, 2m56s).. Is this normal?