Looking at this test and some other phoronix graphics tests it seems to me that using a discrete graphics card (other than X1xxx) with an opensource driver provides only minimal advantage over running an 2500K igp (exluding lightsmark). just stunning. or did i get the wrong impression?
However this still doesn't work with gallium drivers:
I could not test a Sandy Bridge cpu yet for onboard vga, but for basic games Intel gfx was usually enough. It is definitely no solution for hardcore gamers as you do not even have got OpenGL 3.x functionality (the chip has dx10.1/opengl 3.x hardware features) with Linux. Current binary only drivers (ati+nv) support OpenGL 4.x - the Unigine engine can use it already for tesselation effects (but really needs a very powerful card). But for a simple game from time to time Intel gfx should be enough.
Much more interesting would be how the integrated media ENCODER can be used, that would speed up h264 encoding very much...
Otherwise, you're still going to be testing the Quake 3 engine 10 years from now, and that's already basically a useless test on today's hardware. It's like glxgears, a good test to run to ensure basic functionality, but not much good for anything more than that.