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(PCI-SIG, Beaverton, OR, www.pci-sig.com) An industry consortium founded in 1992 that owns and maintains all PCI technologies. PCI-SIG also sponsors workshops and technical conferences. Standing for PCI Special Interest Group, more than 900 member companies are involved. Following is a comparison of PCI speeds. For PCI interconnects, see PICMG.

PCI SPECIFICATIONS            Bus    Clock  Date RateVer. Year  (bits)  (MHz) (GBytes/sec)PCI - Parallel Shared
 1.0  1992   32        33   .133
 2.0  1993   32/64     33   .133/.266
 2.1  1995   32/64     66   .266/.533
 2.2  1998   32/64     66   .266/.533
 2.3  2002   32/64     66   .266/.533
 See  PCI.

 Parallel Shared
 1.0  1999   64        66       .533
 1.0  1999   64       133      1.066
 2.0  2002   64 DDR   133      2.132
 2.0  2002   64 QDR   133      4.264
 DDR=Double Data Rate
 QDR=Quad Data Rate
 See  PCI-X.

 PCI Express 16 Lanes (PCIe x16)Serial Switched Point-to-PointFull DuplexVer. Year    Lane Speed (GBytes/sec)
 1.0  2002     250MB/sec      8.0
 2.0  2007     500MB/sec     16.0
 3.0  2010       1GB/sec     32.0
 4.0  2017       2GB/sec     64.0
 5.0  2019       4GB/sec    128.0
 6.0  2021       8GB/sec    256.0
 See  PCI Express.

Types of Expansion Cards
PCI Express (PCIe) superseded PCI, PCI-X and AGP. The edge connector configuration prevents a card from being inserted into the wrong slot.
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References in periodicals archive ?
Member company tools that promote protocol adherence and interoperability help to ensure the continued success of the PCI Express standard, said PCI-SIG Chairman and President Al Yanes.
PCI Express 5.0 is set to be finished in 2019 - if the PCI-SIG can keep to that schedule we could see motherboards popping up as early as 2020 or 2021 depending on how the technology rollout intersects with AMD and Intel's own refresh plans.
PCI-SIG has strong backing with more than 800 members, which could help build momentum around the technology, Yanes said.
Over the past decade, Tektronix has consistently anticipated the proper levels of bandwidth support for the leading serial standards, and is an active participant in such bodies as the IEEE Society, PCI-SIG, SATA-IO and USDB-IF.
The provider of silicon, systems and software technologies said its high-performance SAS ROC is intended to support the PCI Express 3.0 specification, currently under development within the PCI-SIG, and provide I/O performance levels that meet the needs of server platforms based on PCI Express 3.0 and flash-based solid-state drive (SSD) storage.
<p>Whitehurst said Red Hat's plan is to offer choice, which he says will be the hallmark of 21st Century computing architectures.<p>"Cloud and virtualization is the next big thing," he said.<p>RHEL 5.4 also includes support for Intel's Virtualization Technology for Directed I/O (VT-d) and SR-IOV (Single Root I/O Virtualization), a PCI-SIG standard that lets a single physical adapter act as multiple virtual adapters available to virtual machines.
ExpEther is a unique interconnection technology which uses standard Ethernet to enhance scalability, reliability and virtualization capability of PCI Express, while still working as a PCI Express standard-compliant switch as specified by PCI-SIG.
nGene is certified by the PCI-SIG, the industry standard body for PCI Express technology, to be PCI Express 1.0a-compliant.
The connectors are compliant with the latest PCI-SIG cable specifications.
The standardization of these new modules has already been started by the PCI-SIG and a draft specification is currently in progress.
(TSX:ATY) (NASDAQ:ATYT) has announced that the PCI-SIG has added 16 of its PCI Express graphics chips to the PCI-SIG Integrators list.