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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. It 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 bus speeds. See PICMG, PCI, PCI-X and PCI Express.

BANDWIDTH OF PCI-SIG TECHNOLOGIESThis data courtesy of PCI-SIG.      Year   Bus    Clock  Date RateVer.  Intro (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

 PCI-X - Parallel Shared
 1.0  1999   64        66       .533
 1.0  1999   64       133      1.066

 PCI-X - Point-to-Point
 2.0  2002   64 DDR   133      2.132
 2.0  2002   64 QDR   133      4.264
 DDR=Double Data Rate
 QDR=Quad Data Rate

 PCI Express (PCIe)Serial Switched Point-to-Point
 1.0  2002    x1   "250 MB/sec    .25
 1.0  2002    x2    per           .5
 1.0  2002    x4    lane         1.0
 1.0  2002    x8    in each      2.0
 1.0  2002   x16    direction"   4.0
 1.0  2002   x32                 8.0

 2.0  2007    x1   "500 MB/sec    .5
 2.0  2007    x2    per          1.0
 2.0  2007    x4    lane         2.0
 2.0  2007    x8    in each      4.0
 2.0  2007   x16    direction"   8.0
 2.0  2007   x32                16.0

Types of Expansion Cards
PCI Express superseded PCI, PCI-X and AGP. The edge connector configuration prevents a card from being inserted into the wrong slot.
References in periodicals archive ?
The following PLDA products have achieved PCIe compliance in the past three years and are listed on the PCI-SIG Integrators List, highlighting PLDA's dedication to product quality:
As a PCI-SIG member for more than 10 years, Cadence has played a role in promoting the adoption of PCIe technology, said Al Yanes, president and chairman of PCI-SIG.
Successful completion of the PCI-SIG compliance testing is a critical step in validating PLDA's XpressRICH3-AXI PCIe 3.
M-PCIe brings the necessary architecture to support advancement in tablets and smartphones as they take on the role of primary computing devices," said Al Yanes, Chairman and President, PCI-SIG.
The PCI-SIG Integrators list indicates that a product has been tested in adherence with the PCI Express specification guidelines.
Tony Pierce, PCI-SIG chairman stated, "NVIDIA's contribution to the PCI Express standard is evident in the breadth of their product offerings that passed our compliance testing.
Implementers of this technology must be members of both PCI-SIG and MIPI Alliance in order to leverage member benefits including access to licensing rights and specification evolutions.
Agilent Digital Test Standards Program experts are involved in various international standards committees, including the Joint Electronic Devices Engineering Council, PCI-SIG, Video Electronics Standards Association, Serial ATA International Organization, Serial Attached SCSI (T10), USB-Implementers Forum, MIPI Alliance, Ethernet standards (IEEE 802.
PCI-SIG DEVELOPERS CONFERENCE - PCI-SIG([R]), the organization responsible for the widely adopted PCI Express([R]) (PCIe([R])) industry-standard input/output (I/O) technology, today announced new updates to meet the evolving demands of a variety of computing markets from high-performance storage to ultra-thin and light mobile devices.
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.
Vitesse Semiconductor Corporation (NASDAQ: VTSS), a leading provider of advanced IC solutions for Carrier and Enterprise networks, today announced that the Company will showcase its latest signal integrity solutions for PCI Express (PCIe) Gen 3 designs and present a technical paper during the PCI-SIG Developers Conference, June 22-23, 2011 at the Santa Clara Convention Center in Santa Clara, Calif.