but yea just by looking you can see only the one x16 lane...
when going for the new graphics card, aim at the 7950 for the 3GB vram, I'll say that even though I love my graphics card for its power for the games I play (intend to play) if noise is an issue avoid the HIS IceQ 7950 Boost, this is my RMA'd one and although the noise is quieter than before, its noticeable when the fan goes 50%+