Question about a PCI-E 2.0 card in a PCI-E 1.1 slot

[racer13fly]

I already know that a 2.0 card would work in a 1.1 slot, but the speed would be decreased, but I'm just wondering how much slower it would go? Like if I put a 9800GT in a 1.1 slot, how much difference would it be? Would it be noticeable or not very?
Thanks.

 

[Matthew1990]

10-15% less FPS. So nothing to worry about!

 

[mx344]

Not by much, but yes they are backwards compatible.I run a 4670 on a 1.1pciex still runs great!

 

[StrangleHold]

With a 9800GT, you wont notice any difference.

 

[viper110110]

they are not backwards compatible in some AS-Rock motherboards

I learned that the hard way.

but other than that they are compatible but slower

 

[lion149]

Best thing to do is Google your MB and read up. For example, my VIA chipest biostar board won't run anything higher then an 8600gt.

 

[racer13fly]

Well I was just kind of curious of how much difference there was, not much I see. Thanks!
And one more thing, would a 9800GT work with the A8AE-LE AmbermineM motherboard? I think it would, but then the problem would be the power supply, which is low on my PC. I of course won't be doing that on my current, though.

 

[ScOuT]

I ran my GTX 260 on my old Asus P5N-E 650i motherboard which has a PCI-E 1.0 slot. I saw absolutly no difference in performance.

Actually...my processor and my graphics card at stock speeds ran higher 3Dmark06 score than the Evga 780i I have now. That's no joke...the Asus motherboard scored about 500-600 points higher!

But of course...the Evga can be tweeked much more and it crushes the Asus board now

 

[StrangleHold]

Well I was just kind of curious of how much difference there was, not much I see. Thanks!
And one more thing, would a 9800GT work with the A8AE-LE AmbermineM motherboard? I think it would, but then the problem would be the power supply, which is low on my PC. I of course won't be doing that on my current, though.

As far as I know, no AMD/ATI chipsets had the problem. Think it was only older VIA chipsets.

 

[linkin]

As long as it is an x16 slot you will really only get a ~5% loss in performance. I know that sli with 16x - 16x is only ~8% faster than sli with 8x - 8x

 

[StrangleHold]

As long as it is an x16 slot you will really only get a ~5% loss in performance. I know that sli with 16x - 16x is only ~8% faster than sli with 8x - 8x

Thats really kinda open ended. They are talking about between PCIe 1.0 vs. 2.0 anyway, not X8 vs. X16.