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Windows 7: Is there a diiference beetween PCIe x16 and PCIe x16 2.0


23 May 2010   #1

Windows 7 Pro 64bit SP1
 
 
Is there a diiference beetween PCIe x16 and PCIe x16 2.0

Are there both PCIe x16 and PCIe x16 2.0 cards/slots out there ? If so will a PCIe x16 2.0 work ok in an regular PCIe x16 ?

Thanks


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23 May 2010   #2

Windows 8.1 Pro x64
 
 

Most newer cards are PCIe x16 2.0 & 2.1
PCIe x16 2.0 is backwards compatible with PCIe x16

Graphic cards and motherboards designed for v2.0 will be able to work with v1.1 and v1.0
My System SpecsSystem Spec
24 May 2010   #3
Microsoft MVP

Windows 8.1 Pro with Media Center 64 bit
 
 

Yes, I have an Asus M2N68-AM SE2, it only has a PCIe 1 x16 slot and my 220GT is PCIe 2 x16. It works fine but I am likely not getting its maximum performance.
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26 May 2010   #4

Windows 7 Home Premium x64
 
 

2.0 effectively doubles the bandwidth compared to 1.0/1.1. Depending on the complexity of textures/rendering the bandwidth will be beneficial. And as the others stated 2.0 cards are backwards compatible.
My System SpecsSystem Spec
26 May 2010   #5

Win 7 Home Premium 64 Bit
 
 

in real terms your looking at about 2fps so i wouldnt worry about it , more powerfull cards are able to take advantage of the extra bandwidth , yours isnt really
My System SpecsSystem Spec
26 May 2010   #6

Win7 Ultimate 64bit
 
 

It's somewhat like this: 16x pcie 2.0 = around 8x pcie 1.0.

On a 5870 a 16x pcie 1.0 slot will bottleneck the gpu for around 1~2%, while bottlenecking a 5970 for around 8% or more..
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 Is there a diiference beetween PCIe x16 and PCIe x16 2.0




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