Are PCI-E 2.1 graphics cards compatible with PCI-E 2.0?

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vicgamer1998

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Nov 24, 2013
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Are pci-e 2.1 graphics cards compatible with pci 2.0..??
I have a Biostar G41D3C ver7.0 motherboard supporting pci-e 2.0 with 8GB of RAM.
I want to upgrade my graphics card to a Asus AMD HD 6670 1 GB GDDR5, but it says pci-e 2.1. Should i buy it?? Please help!
 
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photonboy

photonboy

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Jun 20, 2006
21,567
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Yes.
In fact, PCIe is a forwards and backwards technology. An old PCIe v1 card works in a v3 motherboard and vice versa.

It's only EVER an issue if something like a graphics card is too fast for the bus. Even then it still works but at reduced performance (i.e. an NVidia Titan in a PCIe v1 bus).
 
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