“My curiosity piqued, I decided to investigate just how much AGP bandwidth affected modern game and application performance, and, by extension, how much PCI-Express is likely to improve it. While we won’t be able to directly predict PCI-E performance based on AGP scaling, we can use one to establish a rough trend for the other.”
and
“Generally with graphics cards a driver update is quite simple and can easily be reverted back to the original drivers if anything goes wrong. Often I simply update my drivers without paying much attention to the impact that they might have. Generally with the test system I hold off driver updates until I have finished testing a series of say motherboards. Today I have taken it upon myself to discover what these new Catalyst drivers have to offer and how the 4.5, 4.6 and 4.7 BETA drivers stack up against one another.“
What does PCI Express mean to AGP & a Catalyst Comparison
Sudhain takes a look at the bandwidth needed for graphics cards, to determine just what you can expect to see from PCI-Express. Also, Legionhardware compares Catalyst drivers to see what has changed over the past few iterations.