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PCI-SIG, the organization responsible for the widely adopted PCI Express (PCIe) industry-standard input/output (I/O) technology, today announced the approval of 16GT/s as the bit rate for the next generation of PCIe architecture, PCIe 4.0. This decision comes after the PCI-SIG completed a feasibility study on scaling the PCIe interconnect bandwidth to meet the demands of a variety of computing markets.

After technical analysis, the PCI-SIG has determined that 16GT/s (16Gb/s) on copper, which will double the bandwidth over the PCIe 3.0 specification, is technically feasible at approximately PCIe 3.0 power levels. The data also confirms that a 16GT/s interconnect can be manufactured in mainstream silicon process technology and can be deployed with existing low-cost materials and infrastructure, while maintaining compatibility with previous generations of PCIe architecture. In addition, the PCI-SIG will investigate advancements in active and idle power optimizations, key issues facing the industry.

The PCIe 4.0 specification will address the many applications pushing for increased bandwidth at a low cost including server, workstation, desktop PC, notebook PC, tablets, embedded systems, peripheral devices, high-performance computing markets and more.

“We have concluded that 16 GT/s is a feasible technical solution that satisfies our member companies’ requirements. While the preliminary analysis is encouraging, a lot more challenging work lies ahead in developing the specifications. The PCI-SIG looks forward to providing our members with a specification that not only satisfies their high performance requirements but also meets their power, cost and compatibility goals,” said Al Yanes, PCI-SIG chairman.

The final PCIe 4.0 specifications, including form factor specification updates, are expected to be available sometime in the 2014-2015 timeframe.

“Like its predecessors, the PCIe 4.0 architecture is well positioned to preserve the industry's investments in earlier generations of PCI Express specifications while extending the technology in a manner that enables new applications and usage models,” said Nathan Brookwood, research fellow at Insight 64.

Tags: PCI Express, AMD, IBM, Intel, Nvidia

Discussion

Comments currently: 2
Discussion started: 11/30/11 07:02:36 AM
Latest comment: 12/03/11 06:48:15 AM

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1. 
Soooo.... first motherboards will be available on 2016 the earliest.
0 0 [Posted by: Filiprino  | Date: 11/30/11 07:02:36 AM]
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2. 
You meant 32 GBytes (GB) in the title?
0 0 [Posted by: techie  | Date: 12/03/11 06:48:15 AM]
Reply

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