Feeds

PCI Express 2.0 released

Twice the bandwidth

7 Elements of Radically Simple OS Migration

The PCI SIG, overseer of the PCI Express add-in card standard, has finalised version 2.0 of the base specification. The new released doubles the signalling rate from 2.5Gbps to 5Gbps. The upshot: a x16 connector can transfer data at up to around 16GBps.

PCIe 2.0 remains compatible with PCIe 1.1, until now, the latest version of the specification, so older cards will be able to operate in machines equipped with the new version. Intel is expected to release its first PCIe 2.0 supporting chipsets, members of the 'Bearlake' family, next quarter.

The new specification makes the interconnect more interactive, with link speed now a dynamic that can be continuously adjusted by software. Equally, the link will report back changes in bandwidth to the host. Other tweaks to the protocol make for improved device, slot and interconnect management, the PCI SIG said.

PCIe 2.0 also supports more power-hungry add-in cards, though it's not yet known whether the interconnect will provide sufficient power for today' high-end GPUs, many of which require separate power feeds.

The PCI SIG announced PCIe 2.0 revision 0.9 last autumn. ®

Build a business case: developing custom apps

More from The Register

next story
Nice computers don’t need to go to the toilet, says Barclays
Bad computers might ask if you are Sarah Connor
4K video on terrestrial TV? Not if the WRC shares frequencies to mobiles
Have your say with Ofcom now, before Freeview becomes Feeview
YES, iPhones ARE getting slower with each new release of iOS
Old hardware doesn't get any faster with new software
PEAK LANDFILL: Why tablet gloom is good news for Windows users
Sinofsky's hybrid strategy looks dafter than ever
You didn't get the MeMO? Asus Pad 7 Android tab is ... not bad
Really, er, stands out among cheapie 7-inchers
Apple winks at parents: C'mon, get your kid a tweaked Macbook Pro
Cheapest models given new processors, more RAM
VMware builds product executables on 50 Mac Minis
And goes to the Genius Bar for support
Leaked Windows Phone 8.1 Update specs tease details of Nokia's next mobes
New screen sizes, dual SIMs, voice over LTE, and more
Microsoft stands on shore as tablet-laden boat sails away
Brit buyers still not falling for Windows' charms
prev story

Whitepapers

7 Elements of Radically Simple OS Migration
Avoid the typical headaches of OS migration during your next project by learning about 7 elements of radically simple OS migration.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Solving today's distributed Big Data backup challenges
Enable IT efficiency and allow a firm to access and reuse corporate information for competitive advantage, ultimately changing business outcomes.
A new approach to endpoint data protection
What is the best way to ensure comprehensive visibility, management, and control of information on both company-owned and employee-owned devices?