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" We're barely starting to get our hands on motherboards with PCI-Express 2.0 and already the PCI-SIG (Special Interest Group) has announced that the specifications of PCIe 3.0 will see the standard reach a bit rate of 8GT/s.
Through careful analysis of the feasibility of scaling the PCIe interconnect bandwidth, the PCI-SIG has come to the conclusion that 8GT/s can be manufactured in mainstream silicon process technology, and can be deployed with existing low-cost materials and infrastructure, while maintaining full mechanical compatibility and with negligible impact to the PCIe protocol stack.
Although not numerically double the current 5GT/s of PCI-Express 2.0, the 8GT/s bit rate represents a doubling of the delivered bandwidth by removing the requirement for the 8b/10b encoding scheme supported in prior versions of PCIe architecture, which imposed a 20 percent overhead on the raw bit rate.
With bit rate out of the way PCI-SIG is saying that there is still a lot more to do and that the final PCI-Express 3.0 specifications will be ready by late 2009 with boards supporting it planned to arrive in 2010. Back to the 'old' 2.0 folks."
http://www.tcmagazine.info/comments.php?shownews=15682&catid=6
http://www.macsimumnews.com/index.p...pci_express_30_bit_rate_for_products_in_2010/
Through careful analysis of the feasibility of scaling the PCIe interconnect bandwidth, the PCI-SIG has come to the conclusion that 8GT/s can be manufactured in mainstream silicon process technology, and can be deployed with existing low-cost materials and infrastructure, while maintaining full mechanical compatibility and with negligible impact to the PCIe protocol stack.
Although not numerically double the current 5GT/s of PCI-Express 2.0, the 8GT/s bit rate represents a doubling of the delivered bandwidth by removing the requirement for the 8b/10b encoding scheme supported in prior versions of PCIe architecture, which imposed a 20 percent overhead on the raw bit rate.
With bit rate out of the way PCI-SIG is saying that there is still a lot more to do and that the final PCI-Express 3.0 specifications will be ready by late 2009 with boards supporting it planned to arrive in 2010. Back to the 'old' 2.0 folks."
http://www.tcmagazine.info/comments.php?shownews=15682&catid=6
http://www.macsimumnews.com/index.p...pci_express_30_bit_rate_for_products_in_2010/
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