Originally Posted by d_source
Actually thats where you are incorrect. The potential is there within the pci-e bus, its just not there within the graphics card yet. Once nvidia and ati start making their cards much more complicated (visually) there will be a greater need for speed in delivering the images, and at that point the 16x speed of the pci-e slot will be required and the 8x slot will be unable to keep up. U'll soon see that they will stop making cards for the AGP (if they already havent) and future endeavors will solely concentrate on pci-e.
Google it to find more. I have done a lot of reading in this area b/c i plan to buy a new pc in the very near future as well.
Its more than the speed. It would take too long to explain why PCIex is not that good. Intel created this standard and is forcing it on everyone so they can make uber money. AGP 16x if and when it comes out will destroy PCIex.
And the reason the industry is adopting it, is because it has cheaper royalty fees.