[citation][nom]JWL3[/nom]ta152hYou have no idea what you're talking about. There are numerous benchmarks that show that at this point, a PCI-E slot is significantly faster than AGP and an AGP 8x slot is faster than an AGP 4x slot. If that were the case, why in the world would video card makers, motherboard mfrs. all migrate to this new standard? Putting this 4650 card into an AGP system is like putting $1000 Pirelli P-Zero tires on a rusting 40-year-old VW beetle. Why???[/citation]
JWL, actually, you really have no idea about technology, do you, or you didn't read my post properly.
If you have enough memory on the card, the bus doesn't matter. Do you understand that? It only matters if you have to do transfers from memory, which only happens if you don't have memory on the card. AGP, like PCIe, is really a low-end implementation if you're using one card. Ideally, you have enough memory so it doesn't matter. That was the big fuss when AGP came out. It was really only useful for low-end cards without enough memory, so that if you really needed to use the main memory, you didn't degrade performance nearly as much as you would using PCI. But, ideally, you should use the bus for this.
I'm not that familiar with these two video cards used in systems, so I don't know what type of bandwidth they use to communicate with each other. Maybe there's a benefit there, but I doubt it, since you really wouldn't be sending data back and forth. But, at any rate, it's feasible with PCIe, and not AGP since you have only one slot.
But anyway, the bus doesn't matter if you have enough memory. It's only when you don't that it matters. I know this is hard for you to understand, but think about it. What type of data is being sent over the bus? Commands are very small, and bandwidth doesn't matter, and the data for the visuals should be held on the card's memory. So, what else is being sent? It's only if you have to store data in main memory that it makes a difference, and if you do that, you're already running slower, and, ideally, shouldn't be.