low-power

Latest

  • ARM unveils Cortex-A7 processor, 'big.LITTLE' computing

    by 
    Sharif Sakr
    Sharif Sakr
    10.20.2011

    Fancy a glimpse of the future? That little psychedelic beauty on the right is ARM's brand new Cortex-A7 processor. Its spec sheet might not seem so colorful at first glance, because it doesn't really do things any faster than existing high-end smartphone processors. However, this UK-based chip designer isn't known for bumping its gums, so it pays to look a little deeper. For a start, the Cortex-A7 is built using a 28nm process that makes it five times smaller and more efficient than the current-gen Cortex-A8. It's also cheap enough to power sub-$100 handsets, so we could be pulling GSII-like tricks on budget phones within a couple of years. Is that it? Nope, there's more: perhaps the most important feature of the A7 is that it can be combined with much higher-power cores like the Cortex-A15 side-by-side on the same chip. This allows a super-phone or tablet to switch between two totally different processing units depending on how much power is needed at the time. ARM calls this "Big.LITTLE" computing," and a similar concept is already in use on NVIDIA's Tegra 3 (aka Kal-El) SoC, which we'll see imminently in the next Asus Transformer. However, the Tegra 3 uses five identical Cortex-A9 cores, whereas a device that mix-and-matches the A15 and A7 could potentially deliver higher highs and lower lows, giving you speed when you need it and amazing battery life when you don't. How cute is that? Full PR after the break.

  • LG panel puts LEDs along a single edge, achieves more nits with fewer watts

    by 
    Sharif Sakr
    Sharif Sakr
    10.10.2011

    Confining LEDs to the edges of an LCD TV cuts its energy consumption, particularly if you can get away with just lighting up one or two edges instead of all four. LG claims its latest Full HD 47-inch panel is the "world's most energy efficient," using a single vertical edge backlight to achieve 400 nits of brightness with just 28W of power -- less than any other HDTV bigger than 40-inches and even less than many 20-inch PC monitors. That's all good so long as there's no head-lighting or other tell-tale signs when the panel built into a final product. We hope for LG's sake that the washed out right side on the picture above is due to burning rubber. Full PR after the break.

  • Intel adds to ULV processor line with 1.8GHz Core i7 and i5 options, one of them to star in ASUS UX21

    by 
    Vlad Savov
    Vlad Savov
    06.21.2011

    Intel's so-called Ultrabooks may be a little way off into the distance at the moment, but the company isn't making you wait until its Ivy Bridge rollout to get a taste for ultraslim laptops with some real power inside them. A trio of new ultra-low voltage CPUs, each rated with a TDP of just 17W, has been added to the company's catalog, starting with the top-tier Core i7-2677M, whose pair of cores run at 1.8GHz by default but can be sped up to 2.9GHz when duty calls. Then there's the i7-2637M, which looks to only differ in clock speeds (1.7GHz default, 2.8GHz under Turbo Boost), and the i5-2557M that makes do with a 3MB L3 cache (1MB less than its i7 brethren) and a 1.7GHz / 2.7GHz speed range. All three 64-bit, 32nm processors also integrate a GPU (350MHz base clock, maxes out at 1.2GHz) within their walls, which is what makes their ascetic power consumption all the more impressive. OEMs should soon start splicing these new options into their next generation laptops, and while the obvious speculation centers around a MacBook Air refresh, CNET tells us the Core i5-2557M has already found a home in ASUS' upcoming UX21, a (purportedly) sub-$1,000 11.6-inch featherweight contender.

  • Battery-less transmitters pave the way for wireless baby sensors

    by 
    Terrence O'Brien
    Terrence O'Brien
    06.15.2011

    The radio waves that saturate the air around us may, or may not, give us headaches and cancer, but we can tell you for certain they're capable of powering tiny wireless chips. Renesas Electronics Corp has created a new ultra-low power wireless transmitter that can push data to both Bluetooth and WiFi receivers without the need for a battery or AC adapter. Instead of the typical tens of milliwatts, the little transmitters require only a few microwatts of power, which can be harvested from environmental radio waves through LC resonance. The creators envision adhesive sensors that send a baby's body temperature to laptops and ads that beam coupons to smartphones over short distances -- you know, the sort of stuff NFC can do, but without the specialized hardware.

  • Panasonic shrinks WiGig for cellphones, sets our hearts a flutter

    by 
    Terrence O'Brien
    Terrence O'Brien
    06.03.2011

    Tri-band WiGig in a laptop? Yawnsville. Now, put that 60GHz connection in a high-end smartphone and we're all ears (and sweaty palms). Panasonic is the first out the gate with a 802.11ad compatible chip for mobile devices and, despite its head-spinning multi-gigabit speeds, the company's creation draws less that 1W of power. It'll be sometime before WiGig makes its way into your Droid or iPhone, but when it does you can look forward to wirelessly syncing entire seasons of Good Eats (in 1080p, of course) to your phone in mere minutes. Until then, you'll just have to make do with the tantalizing PR after the break.

  • Samsung entices with electrowetting displays at SID 2011: coming to consumers later this year?

    by 
    Michael Gorman
    Michael Gorman
    05.18.2011

    Liquavista has teased us with the potential of its electrowetting displays for years, but we hadn't gotten to peep its panels post-acquisition until now, at SID 2011. In addition to the several screens we'd seen before, there was a new monochrome model that operates at low frequencies (down to sub-hertz levels) to cut down on current consumption. We also laid eyes on its chromatic displays, but in comparison to Mirasol's tech, electrowetting has a ways to go to match the image quality of IMOD. However, Sammy said that its reflective screens can be constructed with minimal mods to existing LCD manufacturing plants, while making Mirasol requires fresh fab facilities. Such a factory isn't exactly cheap, and Mirasol's large-scale production plant won't be around until 2012. So Samsung might snatch the market if it gets there first, and the rep we spoke with said the company hopes to have products shipping this year. While we wait for their hopes and dreams to come to fruition, view the vid after the break. %Gallery-123865%

  • Samsung starts baking 30nm 4Gb LPDDR2 chips, packaging 2GB mobile RAM in April

    by 
    Richard Lai
    Richard Lai
    03.25.2011

    When it comes to mobile RAM, capacity is often what pops to mind first while we overlook speed and power consumption, but Samsung's latest delivery is worth the extra attention. Earlier this month, said Korean giant started producing 30nm 4Gb 1066Mbps LPDDR2 (or simply Mobile DDR2) chips, in order to phase out its 40nm ones that topped 2Gb at a 800Mbps transmission rate. To put it in perspective, a 40nm 1GB package consists of four 2Gb chips, whereas the new 30nm one will only need two 4Gb chips, thus reducing the package thickness by 20 percent (down to 0.8mm) and power consumption by 25 percent. It's hard to tell when we'll start seeing these bits of silicon entering the consumer market, but Samsung's already stamping out 1GB modules this month, with a 2GB version to follow next month. Oh yes, we're definitely liking the sound of 2GB RAM for mobile phones.

  • VIA says Eden X2 is world's most power-efficient dual-core processor

    by 
    Christopher Trout
    Christopher Trout
    03.04.2011

    Following close behind the low-power Nano X2 comes the Eden X2, or what VIA is calling "the world's most power-efficient" fanless dual-core processor. While we've yet to see any official numbers, the original Eden did 500MHz on one watt of power, so we should see similarly thrifty specs here. Aside from that, the unit houses two 64-bit cores in a 21 x 21 millimeter package, is compatible with Windows CE and Linux operating systems, and was built using a 40-nanometer manufacturing process. The Eden X2 made its debut at the World Embedded conference this week, and should make it to the real world by the end of Q2. Full PR after the break.

  • AMD has a 5W Fusion APU to put in your future tablet of choice

    by 
    Vlad Savov
    Vlad Savov
    01.31.2011

    The same Singapore event that brought us our first look at AMD's humongous Radeon HD 6990 has also served as the stage for the company's first showing of a new, even lower-powered Fusion APU. The regular dual-core Ontario (C-50) variant requires a 9W power budget to operate, but AMD's managed to shrink that down to 5W in a chip designed specifically to be used in tablets. Clock speed remains at 1GHz and the core count hasn't bee touched, but the memory controller has been dumbed down and peripheral ports have been reduced to one of each type. This streamlined C-50 has already found a home in Acer's 10.1-inch Windows 7 tablet and should prove decently popular among manufacturers looking for an x86 alternative to the coming tidal wave of ARM-based devices.

  • Samsung buys Liquavista, dives headfirst into electrowetting displays

    by 
    Sean Hollister
    Sean Hollister
    01.19.2011

    Samsung's got a reputation for building crazy awesome display technologies, and it just added another one to the stack -- with the buyout of Philips-spinoff Liquavista this December, it's gained quite the foothold in electrowetting. In case you're not familiar, electrowetting has been repeatedly pitched to us as pretty much the Holy Grail of displays: flexible, colorful, unbreakable, outdoor-readable e-paper screens with high refresh rates and low-power consumption that can be manufactured on existing assembly lines. We'll have to see if the theories equate to meaningful products, but we imagine ownership by Samsung can't hurt one bit, especially as the company says it will "expand its leadership in next generation display technologies by pioneering the application of electrowetting in e-Paper and transparent displays." Sounds like a commitment to us. PR after the break. Update: Seems that The Digital Reader actually figured out about the deal yesterday -- read the original scoop at our more coverage link!

  • VIA Nano X2 low power, dual-core chip gets official

    by 
    Laura June Dziuban
    Laura June Dziuban
    01.04.2011

    VIA has officially announced its Nano X2 low power dual-core chip. The chip comprises two of VIA's 64-bit Isaiah architecture cores, found in previous single-core Nano CPUs. The processors come with native 64-bit software support, VIA's PadLock hardware security features, and VT CPU virtualization technology. The new Nano X2 chips are compatible with VIA's previous processors, including the Nano, C7, C7-M, and Eden, facilitating easy upgrades. The VIA Nano X2 processors are already currently available for OEMs, with systems featuring the chips expected in the first quarter of this year. Full press release is after the break

  • AMD teases Bobcat Fusion APUs again, delivers Atom-busting performance (video)

    by 
    Vlad Savov
    Vlad Savov
    11.09.2010

    A quick refresher: Bobcat is AMD's low-power Accelerated Processing Unit that can handle both computational and graphical duties, Ontario and Zacate are the chips built upon that core, and Brazos is the overall platform that they'll be doing their work on. Clear enough? We hope so. AMD has finally allowed a few tech pubs to get their hands on Brazos-based systems and, along with feedback about their experience, the guys have come back with some added spec notes. There'll be two initial Zacate options, the dual-core E-350 running at 1.6GHz or the single-core E-240 clocked at 1.5GHz, while Ontario will offer 1GHz dual-core and 1.2GHz single-core variants. Let's not forget that both are intended for netbooks and lithe desktop computers before writing them off as too slow -- which would be a mistake anyway as the sites that got a chance to play with the E-350 reported very respectable performance. HardOCP dared to try out Crysis and managed to get it chugging along at a resolution around 720p, whereas Hot Hardware witnessed a 1080p video clip being played back perfectly smoothly alongside an instance of Hyper Pi maxing out the CPU load. Benchmark results will have to wait for another day, but feel free to peruse the links below for a more detailed breakdown of the new architecture.

  • Liquavista displays get flexible, 'unbreakable,' still rather theoretical (video)

    by 
    Tim Stevens
    Tim Stevens
    10.28.2010

    The next generation of display technology is still that, next, but despite being a future away it continues to get better. Liquavista keeps wowing us with various demonstrations of its electrowetting technology offering full color, high refresh rates, visibility in all lighting conditions, and low power consumption to boot. Now they're bendy too, with the company releasing footage of a prototype that's flexible. It's also said to be "unbreakable," demonstrated by a person wearing latex gloves gently tapping on the screen -- because, you know, that's about as tough as it gets outside of the lab. Video is after the break, along with full PR, but in neither will you find any hope of seeing this tech for real before the second half of next year.

  • Elpida and Sharp team up for ReRAM in 2013: 10,000x the speed of current NAND flash chips

    by 
    Vlad Savov
    Vlad Savov
    10.13.2010

    Want to know where the next breakthrough in mobile technology will come from? Well, if Elpida and Sharp have their way, the answer will be the usual suspect of Japan, where they're working away on new memory chips said to be capable of four orders of magnitude faster performance than the ordinary NAND flash storage of today. Dubbed ReRAM, or Resistive Random Access Memory, this project targets a 2013 date for commercialization and counts the University of Tokyo and Japan's National Institute of Advanced Industrial Science and Technology among its development team. Details on how such blinding speeds will be reached aren't readily available, but the Nikkei reports power consumption will be down to "virtually zero" when the memory's not in use. So with ReRAM and HP's memristors both set for three years from now, can we schedule NAND's funeral for 2014 or what?

  • NVIDIA launches sub-$80 GeForce GT 430 for single-slot cooler enthusiasts

    by 
    Vlad Savov
    Vlad Savov
    10.11.2010

    The graphics card that doesn't require a fridge-sized cooler is turning into something of a rarity nowadays, but we doubt the market for quiet, efficient, and halfway-decent GPUs is ever going to disappear completely. NVIDIA is fleshing out its Fermi family today with a creature that aspires to such epithets, the 96 CUDA core-equipped GT 430. It's a patently humble GPU, as indicated by its $79.99 typical price, 49W TDP, 5.7-inch board length, and single-slot cooler design. Mind you, while those are typically considered positives, they do limit gaming performance quite significantly, with the GT 430 getting roundly beaten by ATI's (sob!) AMD's similarly priced Radeon HD 5670. So what niche is left for this card? Well, it's an upgrade over integrated graphics and it gets you on the 3D bandwagon, but on the whole we're left scratching our voluminous craniums as to why anyone would dodge AMD's more accomplished hardware for NVIDIA's latest. Hit up the reviews below and form your own opinion, if our one doesn't suit your outfit today. Read - HardOCP Read - AnandTech Read - PC Perspective Read - Hot Hardware Read - Legit Reviews Read - Hexus%Gallery-104721%

  • Pixel Qi turns into ideal 10-inch companion display with wired and Wireless USB, 1.5W power needs

    by 
    Vlad Savov
    Vlad Savov
    09.28.2010

    Pixel Qi has today announced it's taking the next step in its quest for global domination of sunlight-readable displays. Partnering up with German outfit Display Solution AG, the company is about to start selling its 10-inch, 1024 x 600 panels as standalone units, which you'll be able to hook up to your computer or smartphone via USB, either the wired or Wireless version. Power consumption maxes out a measly 1.5W with the LED backlight turned on, meaning that one USB tether will be sufficient to feed it both power and data. We don't know exactly how long we've waited for a secondary screen with this sort of flexibility, but it's sure been a while. Look for Display Solution to start selling these hotcakes next month.

  • Qualcomm's Peanut challenges ZigBee, Bluetooth for control of your personal area network next year

    by 
    Sean Hollister
    Sean Hollister
    09.24.2010

    Perhaps dissatisfied with the glacial pace of Wibree, Qualcomm's working on an ultra-low-power, short-range wireless transfer tech of its own -- it's called Peanut, and executives claim it only needs "fractions of a milliwatt of power" to push data at several megabits per second. Computerworld got the scoop on the new low-power radio at EmTech@MIT 2010, and reports that Qualcomm's had these goobers in the oven since 2006 and is looking to trump the likes of ZigBee and Bluetooth by this time next year. Assuming, of course, the Peanut standard doesn't require a molasses-like committee of its own to attain formal approval.

  • Cambridge scientists develop lower-than-low power WORM memory

    by 
    Laura June Dziuban
    Laura June Dziuban
    09.03.2010

    Researchers at Cambridge University have recently published a paper on their new type of WORM (write once read many) memory which is even more low powered than the ones that came before it. The new electron-only design of the memory is solution processed, making it low cost as well as it requires no lithography. The device, using ZnO semiconductor nanoparticles to inject electrons into a polymer which is capable of conducting. The electrons are then used to program the memory by permanently lowering the conductivity of the polymer, producing insulation. This result is far lower power densities than previously recorded, by orders of magnitude. The research team believes that it can make further improvements to the device as they continue to work.

  • Liquavista displays go out in the sun, look better than all right (video)

    by 
    Tim Stevens
    Tim Stevens
    06.24.2010

    We've seen Liquavista displays plenty of times at various trade shows, but so far they've always been locked up indoors. Now they've gone outside to enjoy the weather, and ARMdevices.net was there to capture the results. The low-power color and monochrome screens are shown looking at least as good in the wild as they do in captivity, and when placed next to a traditional LCD (in the laptop on the right) the difference is clear. Granted, the colors are a bit washed out, but the refresh rate is certainly far higher than anything we've seen from E Ink. While there's still no firm word on how much this technology will cost manufacturers, converting from standard LCD production to Liquavista production is said to be relatively painless. How painless? We'll rather disappointingly have to wait for at least another year before we find out, as these aren't slated to go into production until the second half of 2011.

  • ViewSonic outs energy efficient, earth-friendly VOT125 nettop -- won't help that there oil spill

    by 
    Laura June Dziuban
    Laura June Dziuban
    05.18.2010

    Way back at CES in January, we spied ViewSonic's full offering, and we caught wind then of the VOT125 nettop -- but we didn't really have any details to go on. Well, the company's officially announced the VOT125 PC Mini today, and the slim little guy looks pretty cute. Sold as a space-saving PC with green design, ViewSonic says that the VOT125 uses up to 90 percent less plastic than similar nettops, and consumes up to 90 percent less power, making use of a range of ultra low power Intel ULV CPUs. The VOT125 boasts 2GB of memory, a 250GB hard drive, four USB 2.0 ports, plus DVI / HDMI. You can grab one up starting today, and it's got a starting price of $499. The full PR follows.