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erenas4

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I know its all speculation that this point but I keep hearing that the next generation of cards will have PCI 3.0. If thats the case, will they work in PCI 2.0 boards? The reason I ask is because Im about to build a new system and am wondering if I should wait for a good PCI 3.0 board to come out or if Ill be good with a current gen 2.0 motherboard.

Thanks!
 
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I have never seen this question adequately answered, with supporting links etc.
However from what I know I don't think we are in any serious danger of a single card, even a dual card maxing out a 2.0 slot.
When the cards come out Techpowerup usually do a scaling test where they restrict the PCIE lanes. Like this. http://www.techpowerup.com/reviews/NVIDIA/GTX_480_PCI-Express_Scaling/

Actually checking they have not done so for a while. maybe because the results here show its not going to be an issue for a good while.

Mactronix :)

sayantan

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PCie slots are both forward and backward compatible.So there won't be any compatibility issue.FYI most powerful dual GPU cards(590,6990) are PCIe 2.1 compatible.So even if HD7970 has a performance comparable to 6990 it won't be bottlenecked by PCIe 2.1/2.0 slots.Only dual GPU 7990 will need to use the potential of 3.0.
 


+1. This.
 


I have never seen this question adequately answered, with supporting links etc.
However from what I know I don't think we are in any serious danger of a single card, even a dual card maxing out a 2.0 slot.
When the cards come out Techpowerup usually do a scaling test where they restrict the PCIE lanes. Like this. http://www.techpowerup.com/reviews/NVIDIA/GTX_480_PCI-Express_Scaling/

Actually checking they have not done so for a while. maybe because the results here show its not going to be an issue for a good while.

Mactronix :)
 
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