PCI-E 2.0 in a PCI-E Slot?

[DirtBikeRidr]

So I will get about the same performance if I used a 9800 in a standard and if i use it in a 2.0? I won't notice a difference?

 

[Teny]

Yes, the graphics card does not fully use up the pci-1 1.0/1.1 x16 slot bandwidth, even though PCI-E 2.0 slot has twice the bandwidth, since it doesnt use up all of PCI-E 1.0/1.1, then its not going to use up PCI-E 2.0s bandwidth.
I guess an nice example would be you having an car that can go 80MPH (graphics card), and you are on a freeway that lets you go 100MPH (PCI-E 1.0/1.1), then you decided to go on the freeway that lets you go at 200MPH instead (PCI-E 2.0), but you cant go that fast since your car can only go 80MPH.
The only difference you will see are in benchmarks, while in gaming, there was no difference IIRC.

 

[nevermind1534]

no one has really answered his question for sure
i honestly dont know

so the question is
can a 2.0 PCI-E be used in a 1.0 slot?

I answered that for you twice...