9800 Pro on 4X Slot.

[Darthgary]

To my knowledge, the differents between a high end card on a 4X slot and the same card on a 8X Slot will perform no different. Does any one beg to differ.

[eagle1]

Nope. You are right.
The % increase in applications is very minimal (like 5 to 10% difference) so, you wont be missing out much.!

[Peter M]

Actually, the difference is zero with games, simply because the scenes are made to fit into the card's own memory - thus, AGP transfers don't even happen, ever.

Professional 3D rendering software, with its highly complex scenes, is a different story. Higher AGP mode does show very noticeably there.