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It takes a lot of energy for computing systems or data centers to patch up critical errors, but what if we devoted less power to fixing less urgent issues? That's the basic idea behind EnerJ -- a new power-saving system that could cut a chip's energy consumption by 90 percent, simply by prioritizing critical problems over those that are less threatening. Unlike, say, liquid cooling techniques, the University of Washington's framework focuses exclusively on the programming side of the equation and revolves around two interlocking pieces of code: one that handles crucial, precision-based tasks (e.g., password encryption), and another designed to deal with processes that can continue to function, even when facing small errors. The system's software would separate the two codes, meaning that energy from one section of the chip would never be used to fix a major problem that the other should address, while allowing engineers to more efficiently allocate voltage to each regi...

We've seen it put its processing power behind the iPad 2 and heard rumors of its presence in the upcoming fifth-gen iPhone, but could Apple really be considering putting its mobile-minded A5 processor in a MacBook Air? According to Japanese website,  Macotakara , a trial of the ARM chip is already underway. Apple's reportedly been experimenting with a Thunderbolt-equipped MacBook Air with the A5 on board, and "according to someone who has seen a model running with [Apple's] A5 processor, the performance is better than had been thought." Two weeks ago, we reported on rumors that the upcoming MacBook Air refresh could be on its way as early as next month, featuring Intel's Sandy Bridge 17W mobile processors -- a claim we'd say could hold water. Of course, this information has trickled a ways down the grapevine, and the presence of an A5-packing test vehicle doesn't mean much anyway, but you can consider our interest piqued, regardless. CNET Macotakara ...

At only $195, it's hard to deny that AMD's new Phenom II X4 980 Black Edition desktop chip is a bargain. Its four cores hum along at 3.7GHz, the fastest  base  clock speed of any consumer CPU, and the unlocked multiplier should make it trivial for overclockers to push this beast to 4GHz andbeyond. The 980 slides right into the same price point as the previous champ, the Phenom II X4 975, and knocks a few bucks off the former clock-frequency king. All of this seems like great news for AMD fans. Of course, if you're starting from scratch and not just looking to upgrade an aging AM3 rig, keep in mind that only $30 more scores you the  mid-range  Core i5-2500K that consistently outperforms the 980, consumes less power, and also has an unlocked multiplier. Guess there's always the graphics market if you care to see AMD being competitive. For the nitty-gritty on how its latest central processing unit stacks up, see the source links. Tech Report ,...

It hasn't even been a week since Intel rolled out Oak Trail, and it's already teasing us with yet another tablet-ready chip called Cloverview. What's more, we're also seeing unofficial details emerging for its next generation Ivy Bridge CPU. Starting from the top:  PC World  is reporting that Intel's Doug Davis introduced the Atom-based Cloverview at the firm's Developer Forum in Beijing Tuesday, touting its 32nm architecture and low power consumption. Meanwhile a set of rather convincing slides are showing off the 22nm stylings of Sandy Bridge'ssuccessor, Ivy Bridge. From the look of things, the CPU will support DirectX 11 graphics, USB 3.0, and 1600MHz DDR3 memory -- its desktop platform has been christened Maho Bay. Ivy Bridge is reportedly expected to arrive in the first half of 2012, but we're still waiting on Cloverview's ETA. Isn't silicon fun? PCWorld ,  DonanimHaber

Someone deep down in Intel's development dungeons must be laughing a haughty laugh of disdain at us mere mortals getting excited about dual-cores in smartphones. The old Chipzilla has just turned out its 10 -core Xeon E7 processor family, which can work on 20 simultaneous computational threads courtesy of the company's Hyper-Threading knowhow. Needless to say, there aren't that many casual workloads that will ever properly harness such extremely parallelized prowess, but then Intel isn't really gunning for the Facebook crowd here anyhow. The new E7s are for those dealing with truly data-intensive tasks, meaning that Facebook itself would be a good candidate to buy up a few, provided it's tempted by such things as 40 percent performance improvements over the Xeon 7500 tied to dynamic power adjustment for increased energy efficiency. Pricing for the Xeon E7s starts at $774 and climbs up to $4,616 per 32nm chip, with the usual proviso that Intel won't...

Whoa, Nelly! AMD, a company that has struggled to nail its ship dates in years past, has just pulled the ultimate 180. If you'll recall, we heard last month that its quad-core Llano APU was on track for a Q3 2011 release, but now, we've word straight from the equine's mouth that the action will be going down far sooner. In fact, AMD's Singapore plant just celebrated the first shipment of the company's 32nm Llano A-series APUs, complete with discrete-level graphics and a promise to change the way we think about netbook / nettop / ultraportable performance. Of course, just because these chips are headed out to OEM partners doesn't mean that they'll be gracing the pages of your favorite PC maker tomorrow; Chief Financial Officer and Interim CEO Thomas Seifert notes that AMD is looking forward to seeing Llano-based machines during this quarter, but given that Q2 just got going, we may be waiting awhile still. Nothing like a little Zacate to tide you ...