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PCI Express in 4x Slower than AGP 8x?

Last response: in Graphics & Displays
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I am considering moving over to Core 2 platform. However because my previous rig was a AMD Athlon XP 3200+ I invested in a Radeon X1950PRO AGP card thinking I was going to be stuck with this system for quite a while so I may as well make myself more comfortable.

Until I have enough money and a decent graphics card comes along to replace my X1950PRO without extortionate prices to match, I have decided to get one of these AsRock boards that will let me use my trusty AGP card with a shiny new Core 2 and DDR2 Memory. However one thing that is concerning me is the fact that my PCI Express lane will be 4X - this seems to be the case on many Asrock Combo boards.

Does this mean that by moving to PCI Express which is restricted to 4x I will be going backwards in technology and getting slower performance from PCI Express cards than I would with AGP??

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I'm using one of those boards as a stopgap, as we speak. (Striker has gone titsup again)
I have an 8800 Gtx in it, and it seems much better than my 8x AGP, 7800 Gainward Bliss GS (7900).
I guess it'll depend on the cards in question, I plan on changing this when I replace/rma the striker, but it is running Graw2 on 1920*1200, high everything at the mo!
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Interesting - the article shows how much slower PCI-E x4 is than x16 but how does this stack up alongside AGP 8x.

For example the HD3850 is soon to come onto AGP - I am contemplating getting a HD3850 on AGP 8x if the PCI-E at 4x will work out slower than AGP.
Anonymous
Graphics card Master

Pulled this off of Wiki:

AGP 8x 64-bit 34,133 Mbit/s 4,266 MB/s

AGP 8x 17,066 Mbit/s 2,133 MB/s

PCI Express (x4 link) 8,000 Mbit/s 1,000 MB/s

Which is really annoying as I've got a similar AsRock mobo and I too am using the PCI Express slot thinking that it was better, what a con!!!

I suppose when you look at the layout of the 2 slots, the AGP slot is higher than the PCI Express slot which would suggest that AGP has a higher priority on this board.
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