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May 13, 2008, 06:11 PM
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Pcie 3.0
I was researching pcie 2.0 and found 3.0 will be out later in 09. With the new nVidia 7 series having pcie 2.0 I wondered if 3.0 would be out soon. I did find a phyxs card that uses 3.0 technology. 3.0 is back compatible with 2.0 and 1.0, but my question is, when would be expect to see gpu's and mobo's with 3.0? What preformance value will 3.0 bring over 2.0 and 1.0. I've heard 2.0 is only 10% per card faster, any other comment/sources would be great.
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Last edited by mlee49; May 13, 2008 at 06:44 PM. Reason: whoops |
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May 13, 2008, 06:20 PM
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May 13, 2008, 06:22 PM
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EDIT: Very interesting read Zen! Thanks for the link!
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Last edited by JrRacinFan; May 13, 2008 at 06:54 PM. |
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May 13, 2008, 06:31 PM
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there was talk about this in a similar thread i forgot the link but it showed how much bandwidth gpu actually use, it was surprising but most cards dont use hardly any of the bandwidth of pci-e 2.0.
if i can find the link ill post it, if someone else knows what im talking about please post the link... |
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May 13, 2008, 06:56 PM
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Thanks for the article Zen! Bandwidth speeds are set by the PCI controller, right? The memory interface on a GPU is variable with the cards, right? Which is more important with the transfer? Sounds like PICE 3.0 should be 4.0 as is will be double the actual transfer rate. Freakin awesome!
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May 13, 2008, 08:22 PM
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You're welcome.
Im not sure bandwidth speeds is a real term. I think the amount of data that can be moved is determined by the physical size of the bus. The rate the data flows is determined by the pci clock. So 64 wagons dropping off 1 load a second vs 1 wagon dropping off 64 loads in one second. The PCIe interface is how much data can be pushed on the bus...The memory interface on a video card is linked directly to the GPU...its just smaller motherboard aka daughter board with dedicated ram for the GPU. I believe...correct me if Im wrong. LOL
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May 13, 2008, 08:26 PM
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And we're yet to see something that bottlenecks under PCI-E 2.0 X16
 ......or even PCI-E 1.1 in some ways.
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May 13, 2008, 08:38 PM
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But just maybe a PCIe 3.0 card will be able to actually run crysis in a single card setup..haha j/k
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May 13, 2008, 08:39 PM
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Quote:
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May 13, 2008, 08:39 PM
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yeah I think pcie 3.0 will be a waste just like pcie 2.0
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May 13, 2008, 09:34 PM
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Quote:
My AGP 3850 is as fast as, in fact faster than, any PCIe2.0 3850. Check http://forums.techpowerup.com/showth...t=lemonadesoda AGP is still a winner baby! |
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May 13, 2008, 09:45 PM
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I think the real benefit from PCIe 3.0 is going to be in daughter cpu boards. I think Sun currently does this. This is where you have a daughter board with 2-4 cpu sockets that then plugs into a PCIe 3.0 slot for a lot of proc power. This will require immense bandwidth.
Probably not going to be something used on desktops though.
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