Feeds

Deep inside Intel's 'Ivy Bridge' chip

A really small Sandy Bridge. And more

Business security measures using SSL

IDF 2011 Intel's next-generation "Ivy Bridge" chips will include a host of improvements, including integrated graphics that the company claims will narrow the lead now held by AMD's Fusion APUs.

"I expect that that gap, from everything that I've seen, is closing fast," Intel's director of graphics architecture Tom Piazza told an Ivy Bridge confab on Tuesday at the Intel Developer Forum (IDF), when he was asked if Intel was closing the performance gap with its competition – presumably AMD.

"I don't see any reason why it won't close all the way," he confidently continued, "and maybe you'll be asking the other guys that question in a year or two."

Improved graphics performance is not the only architectural improvement in Ivy Bridge over Intel's current "Sandy Bridge" chips. Also new, said Ivy Bridge interconnect and integration engineer Varghese George at the same session, are support for low-power DDR3L memory, dynamic (no reboot) overclocking control of both the compute and graphics cores, power-management improvements, security enhancements to guard against escalation of privilege attacks, and more.

Intel Ivy Bridge

Ivy Bridge is not just a shrink of Sandy Bridge from 32nm to 22nm ...

Intel Ivy Bridge

... it includes improvements to a host of architectural improvements, as well

Such a significant redesign is unusual in Intel's "tick-tock" chip-release cadence, in which a tick in a process shrink – say, from 32nm to 22nm – and a tock is a new architecture. During his IDF keynote on Wednesday, Intel's PC client honcho Mooly Eden referred to Ivy Bridge as "a tick-plus" – a scaled-down version of Sandy Bridge, but with its own architectural improvements.

Eden focused on one of those improvements, a power-saving enhancement called power-aware interupt routing, or PAIR, which intelligently sends interrupts to cores that are already up and running, rather than to those that have been powered down and are comfortably asleep.

Accessories and external devices continually send interrupts to a CPU to check on what's what. USB, for example sends around three thousand interrupts per second – and if a core is asleep, it must wake up to handle that interrupt before it can go back to sleep.

"And the minute it wakes up, it starts consuming power," Eden explained, "and it tries to go back to sleep and [the interrupt] wakes it up – and you know how annoying it is when you wake up and sleep and wake up and sleep."

Without PAIR, Mooley said, each of USB's 3,000 interrupts per second are sent to core 0 – and if core 0 is asleep, USB wakes it up, which wastes power. Simply put, PAIR routes interrupts to a core that's already awake, thus saving power. A small amount, to be sure, but in the world of power management, many small amounts can add up to significant power savings.

New hybrid storage solutions

More from The Register

next story
Half a BILLION in the making: Bungie's Destiny reviewed
It feels very familiar - but it's still good
Apple's big bang: iPhone 6, ANOTHER iPhone 6 Plus and WATCH OUT
Let's >sigh< see what Cupertino has been up to for the past year
Huawei ditches new Windows Phone mobe plans, blames poor sales
Giganto mobe firm slams door shut on Microsoft. OH DEAR
A SCORCHIO fatboy SSD: Samsung SSD850 PRO 3D V-NAND
4Gb/s speeds on a consumer drive, anyone?
Phones 4u website DIES as wounded mobe retailer struggles to stay above water
Founder blames 'ruthless network partners' for implosion
Get your Indian Landfill Android One handsets - they're only SIXTY QUID
Cheap and deafening mobes for the subcontinental masses
Apple's SNEAKY plan: COPY ANDROID. Hello iPhone 6, Watch
Sizes, prices and all – but not for the wrist-o-puter
prev story

Whitepapers

Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.
Saudi Petroleum chooses Tegile storage solution
A storage solution that addresses company growth and performance for business-critical applications of caseware archive and search along with other key operational systems.
Security and trust: The backbone of doing business over the internet
Explores the current state of website security and the contributions Symantec is making to help organizations protect critical data and build trust with customers.
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.