With the different AMD and Intel platforms offering varying numbers of PCI Express lanes, the impact of this bus on graphics performance is often the subject of discussion. Are the PCI Express 2.0 x8 and x16 equivalent in terms of performance on our 3D cards? What’s the impact of a x4 interconnect width, and what are the differences between lanes that are directly linked to processors and those which transit via the southbridge? So many questions that we’re going to try and answer in this article!
> The impact of PCI Express on GPUs