Feeds

PCI Express 2.0 to double bandwidth

Overseers back 5Gbps spec

  • alert
  • submit to reddit

The guardian of the PCI Express specification, the PCI Special Interest Group (PCI-SIG), has agreed to increase the bus' single-lane, one-direction data rate to 5Gbps - double its current throughput.

The increase will come when the PCI-SIG finalises the next generation of the specification, expected by the end of 2005, though unlikely to appear in products much before 2007.

Three speeds were proposed for 'PCI Express 2': 5, 6 and 6.25Gbps, the latter favoured by bandwidth-hungry graphics chip and card vendors. However, the PCI-SIG's board ultimately voted in favour of the slowest of the three speeds. Not surprisingly, the vote was not unanimous, with a number of groups pushing for each speed as the one best suited to their individual technology roadmaps.

In the end the 5Gbps target was selected as the "most feasible, highest performance, backward compatible solution within the current PCI Express ecosystem", the organisation said in statement announcing the outcome of the vote.

A faster PCI Express will be needed to bring the bus into line with ever increasing Ethernet and storage interconnect speeds - not to mention the requirements of the graphics chips folks. Ethernet is expected to go to 10Gbps soon, while Serial Attached SCSI is pushing for 6Gbps. ®

Related stories

Nvidia apes ATI to revive mid-1990s AGP feature
Nvidia to unveil 'nForce for Intel' Q1 05
ATI unveils Radeon X850 XT PE, X800 XL
Intel next-gen Centrino chipset ships
ATI rolls out X300, X800 mobile GPUs
Nvidia signs Intel bus licence deal
ATI unveils integrated, discrete Radeon Xpress chipsets
ATI tapes out 90nm R5xx chip
Intel 1066MHz FSB chipset slips out

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
The next step in data security
With recent increased privacy concerns and computers becoming more powerful, the chance of hackers being able to crack smaller-sized RSA keys increases.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.