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PCIe 3.0 or PCIe 2.0

mattydune
By mattydune
in Graphics Cards
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Can I use a PPCIe x16 3.0 graphics card in an PCIe x16 2.0 slot?

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Yes, you can. They're backwards compatible.

In fact most video cards will automatically switch between pci-e v3.0 and v2.0 and even v1.1 dynamically in order to reduce power consumption  (they go back to 3.0 whenever there's a need)

 

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Most video cards don't even saturate the pci-e v2.0 x16 / pci-e v3.0 x8  ... if there is any performance loss, it's extremely small, let's say under 1% .. 5% depending on video card.

 

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15 minutes ago, mattydune said:

Is there no performance loss?

Maybe 1% with 1080 or more powerful, but then the CPU would probably bottle neck.

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Most benchmarks show that performance difference is around 1% and I would even argue that it's within the margin of error because I have seen benchmarks showing the 2.0 beating the 3.0 

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