Since 2.63 GPU rendering with Cycles has been getting worse all the time. Now hitting the record low.
I have a very simple scene. 3 torus’s and two planes with a simple diffuse materials and a lamp.
Here are the results (viewport rendering):
2.65a passes 10
2.63 passes 10
With GPU Blender goes unresponsive during render.
Is this only me or have others experienced this kind of slowdown? And is there anything to do it?
I have a GTX470 dedicated only for Blender. I have tried bot up- and downgrade drivers. But nothing changes. I also have tried to google a lot for any idea why this happens but nothing useful so far.