PCI-e x16 2.0 compatibility

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gruntelite117

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Dec 28, 2008
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I'm getting a new video card and I've heard that the PCI-e 1.0 x16 bus is compatible with any PCI-e 2.0 x16 card. I want to know if this is true or not, and anything else about it.
 
Its true. The 2.0 spec allows for more bandwidth, as well as more "power" to flow through the fingers.

Of course its not finalized, but the PCIE 3.0 spec coming out this year is also compatible with the other two.
 
The only incompatibility was nVidia's first run of 8800GT video cards had an issue with PCI-E 1.0a motherboards. You're unlikely to run into these unless you get a used one. All other PCI-E 2.0 cards will run just fine in 1.x motherboards.

Also, no single video card yet comes even close to exceeding the bandwidth of PCI-E 1.x, so it won't even limit the card's performance.
 
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