PCI 2.0 card performance in a PCI 1.0 Motherboard?

Ok heres the deal my motherboard is pci 1.0 slot soo im buying card that is made for PCI 2.0, i no tht the card will work on my pc but the thing i want to no is ...... I mostly use this pc to play games soo will i see a mojor performance difference in a 2.0 mobo and my 1? please help!

Any help will be greatly appriciated!

Im going to buy a hd 4850 1gb what do u suggest tht i dont go 4 it?

Model of my MOBO is - http://www.intel.com/Products/Desktop/Motherboards/DG31PR/DG31PR-overview.htm

I upgraded from an onboard GeForce 7 series GPU to a GTS 250 512MB GPU and my MOBO has a PCI express 1.0 and this card is a 2.0 and the difference is night and day, but than again compared to what I was running was so obselete it wasn't funny, but I can run Call of Duty 5 World at War with 60fps and up on average, and thats with most of the textures on hight although with my monitor I can only run a resolution of 1280x1024 so that may have something to do with it. But games look amazing none the less.

This is one of the most common questions asked. Theres almost no video card out there that maxes the bandwitdh of PCIe 1.0 yet. The few that do show only about a a 3% to 5% difference. That card is not one of them.

I upgraded from an onboard GeForce 7 series GPU to a GTS 250 512MB GPU and my MOBO has a PCI express 1.0 and this card is a 2.0 and the difference is night and day, but than again compared to what I was running was so obselete it wasn't funny, but I can run Call of Duty 5 World at War with 60fps and up on average, and thats with most of the textures on hight although with my monitor I can only run a resolution of 1280x1024 so that may have something to do with it. But games look amazing none the less.

Prince_Denspion

This is one of the most common questions asked. Theres almost no video card out there that maxes the bandwitdh of PCIe 1.0 yet. The few that do show only about a a 3% to 5% difference. That card is not one of them.

XaosII

This is wrong, ive proven that the gtx 275 and gtx 295 maxes out the bandwidth by more than 5 percent.

But i guess u should be fine with your ati 4850 and pci 1.0 since its equal to the performance of an overclocked 9800gt.

I believe you will only see the difference with PCI2.0 with one of those dual GPU cards.