Feeds

Insanely great PCIe 4.0 bit rate locked in

'Boutique' spec aimed at rarified speedsters

Secure remote control for conventional and virtual desktops

The PCI-SIG has settled on a bit rate for its next-generation PCIe 4.0 interconnect specification, and the winner is – insert drumroll – 16 gigatransfers per second, as expected.

"Experts in the PCIe Electrical Workgroup carefully analyzed a number of target bit rates for the next generation of PCIe architecture, taking into consideration several key factors, including our ability to continue using low-cost materials," said PCI-SIG chairman Al Yanes in a statement. "We have concluded that 16 GT/s is a feasible technical solution that satisfies our member companies' requirements."

When The Reg spoke with PCI-SIG's Serial Communications Workgroup chair Ramin Neshati at this year's Intel Developers Forum, he told us "We think we have line of sight to get to 16 gig on copper – maybe even higher."

"Even higher" didn't happen – although, to be frank, there's little reason that it needed to. AT 8GT/s, PCIe 3.0 is as fast as normal humans will ever need.

Well, "ever" may be quite a long time, but Neshati was of the opinion that first, second, and third-generation PCIe would be "good enough for the broad spectrum of applications for a long, long time" – and when we asked him exactly what a long, long time meant, he told us: "Forever."

PCIe 4.0 – which Neshati called "a boutique-type application for very few topologies" – will, however, be welcomed by those building systems in the rarified world of high-performance computing, and may possibly also find its way into data centers tossing around obscene amounts of bits and bytes.

The PCIe 4.0 spec, which is expected to be released sometime in 2014 or 2015, will be backward-compatible with earlier PCIe architectures. The PCI-SIG also says that it is "technically feasible" that it can be implemented with today's run-of-the-mill, low-cost silicon technologies at "approximately" PCIe 3.0 power levels. ®

Bootnote

The PCI-SIG's announcement contained our favorite statistic of the day – and perhaps the month: "Approximately 24 billion lanes of PCIe have shipped in the marketplace since its introduction." Hmm ... that'd be about 3.4 PCIe lanes for every living human being. Are you using yours wisely?

Beginner's guide to SSL certificates

More from The Register

next story
Xperia Z3: Crikey, Sony – ANOTHER flagship phondleslab?
The Fourth Amendment... and it IS better
Don't wait for that big iPad, order a NEXUS 9 instead, industry little bird says
Google said to debut next big slab, Android L ahead of Apple event
Microsoft to enter the STRUGGLE of the HUMAN WRIST
It's not just a thumb war, it's total digit war
Ex-US Navy fighter pilot MIT prof: Drones beat humans - I should know
'Missy' Cummings on UAVs, smartcars and dying from boredom
Netscape Navigator - the browser that started it all - turns 20
It was 20 years ago today, Marc Andreeesen taught the band to play
A drone of one's own: Reg buyers' guide for UAV fanciers
Hardware: Check. Software: Huh? Licence: Licence...?
The Apple launch AS IT HAPPENED: Totally SERIOUS coverage, not for haters
Fandroids, Windows Phone fringe-oids – you wouldn't understand
Apple SILENCES Bose, YANKS headphones from stores
The, er, Beats go on after noise-cancelling spat
prev story

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.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
Three 1TB solid state scorchers up for grabs
Big SSDs can be expensive but think big and think free because you could be the lucky winner of one of three 1TB Samsung SSD 840 EVO drives that we’re giving away worth over £300 apiece.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.