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Asus Promises 12-Hour Battery Life In New High-End Laptop

Asus' new high-end laptop could finally be the traveler's best accoutrement, touting twelve-hour battery life thanks to intelligent, second-by-second switching between the two GPUs and automatic, on-the-fly re-clocking of the Intel Core i7 CPU. All this also comes in with a price tag of just over $1,000. "ASUS's solution is different because it's user-transparent; even a novice user will get the fullest possible benefit because the laptop itself is deciding when to switch. The same principle applies to the dynamic CPU clocking. ASUS includes a desktop widget to track CPU clock speed. While using the UL80JT, I could see it moving up and down with what I did; up with program openings and CPU-intensive processes, and way down at idle. Between the GPU switching, dynamic clocking, and ASUS's other power management features, the UL80JT manages to consume less than half as much power as the unibody Macbook while browsing."

38 of 190 comments (clear)

  1. Turbo Button by Zordak · · Score: 3, Funny

    "Dynamic clocking" my foot! I won't buy it unless it has a big, red "Turbo" button.

    --

    Today's Sesame Street was brought to you by the number e.
  2. Looks nice. by Hazelfield · · Score: 4, Interesting

    Why hasn't anyone come up with this before? Or if they have, where are the others?

    1. Re:Looks nice. by Guspaz · · Score: 2, Informative

      The truth is that every mobile Intel CPU since at least the Pentium M has featured SpeedStep, with OS support dating back to WinXP (although widgets could enable support on Win2K). Back then, SpeedStep would dynamically clock the CPU between 1GHz and 1.6GHz based on CPU load. The voltage would also change accordingly. These days, all their products support it, even desktop and server processors. What Asus might be doing is underclocking further to try to eke out additional savings. That's not really terribly noteworthy.

      The thing that's "new" here is the dynamic real-time switching between an IGP and discrete GPU... but that doesn't produce the power savings. After all, the vast majority of notebooks ship with *only* the IGP, so they're already getting the "maximum" power savings for graphics.

      The 12 hour battery life probably comes from a variety of sources:

      1) Probably using an LED backlight, which consume less power than traditional cold cathode backlights

      2) Slight savings from underclocking the CPU more than SpeedStep normally does

      3) Various other settings might be tweaked (HDD power settings) to be more optimal than default

      4) Big battery

      5) Consciously choosing lower power components. Lower power (slower) HDDs, avoiding discrete controllers if the chipset can do it, etc.

      This notebook seems focused on getting decent performance combined with good battery life. However, for those of us who just want the good battery life and aren't as concerned with performance, it's not very interesting.

  3. How good/bad is their acpi implementation? by starbugs · · Score: 4, Insightful

    Promising 12 battery life is one thing.
    Actually delivering acpi that is not crap is another.

    I guess we'll wait and see.

    1. Re:How good/bad is their acpi implementation? by BikeHelmet · · Score: 2, Insightful

      I wish they would list battery life under "Heavy Use".

      I remember reading a Netbook review where it pointed out how bogus the 10 hour claims are. Can't find the exact one, but this one is similar.

      10 hours? No. 6 hours if you're doing something. Listening to an MP3 while you work in Office and browse the web? That's CPU, speakers, Wifi, possibly Flash(GPU/CPU), and the HDD. 6 hours is expected under fairly normal use for anyone that visits slashdot.

      And yet devices like the Pandora handheld make real heavy use claims. Why must it be a small insignificant company to avoid being lied to?

    2. Re:How good/bad is their acpi implementation? by Simploid · · Score: 4, Informative
      I forgot to mention the battery results they got:

      idle: 848 mins ( over 14 hours)
      web surfing: 587 mins ( about 10 hours)
      HD video: 361 mins ( about 6 hours)

      Impressive I would say.

    3. Re:How good/bad is their acpi implementation? by derGoldstein · · Score: 2, Interesting

      This may be anecdotal, but Asus have delivered on most of their battery-life claims consistently so far. Most reviews of their laptops, especially the netbooks, have shown that they don't exaggerate their operation time to any significant extent. Personally I have an Eee-1005HA and I don't think I can think of a reasonable usage scenario in which it would last for less than 7 hours. If I keep the CPU at forced maximum, and have it do video playback for the entire time, it still gets over 6 hours. If I keep it at forced powersave mode and only do Flash-free browsing, I've seen close to 8 hours (which is the claim).

      If they deliver even 8 to 10 hours of reasonable usage, it would be a very big leap for a full-power laptop.

      --
      Entomologically speaking, the spider is not a bug, it's a feature.
    4. Re:How good/bad is their acpi implementation? by rve · · Score: 3, Informative

      I wish they would list battery life under "Heavy Use".

      I remember reading a Netbook review where it pointed out how bogus the 10 hour claims are.

      This is a pet peeve of mine. Claims of battery life have been steadily improving over the years, but in real life, in a laptop that's more than a few weeks old, the 'battery low' warning appears within an hour, 90 minutes maybe. According to the specs, the battery should last an entire trans-atlantic flight, but in reality it's low before you reach the airport. I've been disappointed so many times that I've given up on laptops altogether.

  4. Vendor promises by morgan_greywolf · · Score: 5, Interesting

    Vendors promise all sorts of things. That doesn't make them true. I'll believe it when I see Tom's Hardware or someone equally competent test one of these things and they actually get 12 hours.

    Until then, I'll file this one under "vendors promise the world".

    1. Re:Vendor promises by Colonel+Korn · · Score: 4, Interesting

      Vendors promise all sorts of things. That doesn't make them true. I'll believe it when I see Tom's Hardware or someone equally competent test one of these things and they actually get 12 hours.

      Until then, I'll file this one under "vendors promise the world".

      If you want competency, you might check with Anand instead of Tom. My 1005HA EEEPC has more battery life than Asus claimed (I get 11 hours just typing in notepad with the radio off), so I wouldn't be surprised if the 12 hour claim were true. Keep in mind that the quoted number is always for minimal usage.

      --
      "I zero-index my hamsters" - Willtor (147206)
    2. Re:Vendor promises by at_slashdot · · Score: 2, Informative

      This reminds me of my iPhone and Apple bullshit that the battery has a standby of 300 hours (12.5 days)... 300 hours my ass... more like 30.

      --
      "It is our choices, Harry, that show what we truly are, far more than our abilities." -- Prof. Dumbledore
    3. Re:Vendor promises by PopeRatzo · · Score: 2, Interesting

      This reminds me of my iPhone and Apple bullshit that the battery has a standby of 300 hours (12.5 days)... 300 hours my ass... more like 30.

      So I guess we should expect to see a "news" article on how bad the Google Nexus' battery standby time is in about 30 minutes.

      I actually read one of these Appleturfed articles today about how several "independent technology consultants" say that buying an unlocked phone is a terrible idea because you lose the "protection" that a tied-in service contract offers.

      I'm not kidding.

      --
      You are welcome on my lawn.
    4. Re:Vendor promises by Brianwa · · Score: 2, Informative

      I have the same model of EeePC; I've gotten 8 hours of usage with wifi on and moderately intensive web browsing (no movies though) and had at least 20% battery capacity to spare. I'd say it is conceivable to get close to the advertised 10.5 hours of battery life - at least when the battery is brand new. You'd have to be in a relatively dark room, the LED backlight has some pretty dim settings that save a lot of power.

    5. Re:Vendor promises by at_slashdot · · Score: 2, Insightful

      What "protection"? Unlocked phones should be mandated by law like in EU (or at least some countries of EU).

      --
      "It is our choices, Harry, that show what we truly are, far more than our abilities." -- Prof. Dumbledore
  5. CPU downclocking is not news by marcansoft · · Score: 2, Interesting

    This thing is as old as my beat up Pentium III Inspiron 5000. Varying GPU clocks is also old.

    What is interesting is seamless switching between GPUs. Everything else is just marketingese for "we do what everyone else does and we actually bothered to put some extra effort into power optimization".

    1. Re:CPU downclocking is not news by btcoal · · Score: 3, Interesting

      This thing is as old as my beat up Pentium III Inspiron 5000. Varying GPU clocks is also old.

      What is interesting is seamless switching between GPUs. Everything else is just marketingese for "we do what everyone else does and we actually bothered to put some extra effort into power optimization".

      But enabling non-expert users to look under the hood and moderate behavior accordingly is new. Healthy skepticism aside, Asus has built up mad street cred recently and deserves the BOTD to some degree.

  6. Re:The Most I'd Pay For a High-End Laptop Is: by nschubach · · Score: 4, Interesting

    I can't be the only one that laughed when I read:

    "High-end laptop ... with a price tag of just over $1,000."

    Maybe I'm just still used to Laptops being well over $1000. The last one I bought was a Lenovo T61 with an Intel graphics card and it was over $1K. I wouldn't consider it "high-end."

    --
    Every time I start to have faith in humanity, I ruin it by driving to work between 7 and 8 am.
  7. User-transparent by TheMeuge · · Score: 2, Insightful

    ASUS's solution is different because it's user-transparent; even a novice user will get the fullest possible benefit because the laptop itself is deciding when to switch. The same principle applies to the dynamic CPU clocking.

    So what they mean is that the laptop will be deciding when it should be fast or slow, with no input from the user? How's this different than the gazillion power management settings we have now (except switching between GPUs of course)?

    I am also not sure I like the sentiment of "user-independent" is somehow more beneficial to the user. It sounds too much like the drivel from the RIAA/MPAA: "we will enhance customer value by increasing the price and decreasing what they can do with it."

  8. How long on a Low end laptop by Alain+Williams · · Score: 2, Interesting
    If they can do 12 hours on a laptop that, presumably, has a fast CPU & stuff - how long could they go on a laptop with a modest CPU ?

    These guys always seem to want to show speed and power in a laptop -- but what I need in a laptop is long battery life. How much CPU does it take to do a bit of web browsing, run up emacs & ssh. I have a PC at home or stuff that I ssh to if I need to do fast compiles or run databases & other heavy stuff. These guys just don't get it, I thought they had when they brought out the original eeepc -- but subsequent models have just turned to bloat (OK: I do like the larger screens, but that is all).

    1. Re:How long on a Low end laptop by TheKidWho · · Score: 2, Informative

      The best you will get is about 14 hours on an atom pinetrail based eee pc 1005PE currently.

  9. Re:Lies. Slander. by Anubis350 · · Score: 2, Insightful

    Thing is, for, say, students (and not necessarily HS or undergraduates, this applies to law/med/grad as well), this is nearly the perfect blend. A laptop that *can* last for 5 hrs while note-taking and yet be used for gaming or general more sophisticated work with stats packages/modeling tools/etc as well. At $1,000 price point it's still not that expensive, in the same ballpark as the base model macbook/macbook pro. If this does get the battery life they claim, or close to it, I could see myself buying one...

    --
    "goodbye and hello, as always" ~Prince Corwin, from Zelazny's Amber series
  10. Asus battery life claims believable by jasonwc · · Score: 4, Informative

    I have an Asus U80 laptop ($650) with a stated battery life of 7 hours (without Wifi). I've gotten 6 hours with Wifi and 8 hours without. Even with fairly heavy web browsing and CPU usage, I can get 4-5 hours in Battery mode. Thus, while many battery life claims are bullshit, I am inclined to believe Asus. Note that Asus uses some proprietary Windows software to reduce power usage. Without the software, the battery lasted 33-50% less.

    As an aside, they also have excellent RMA service. I discovered that my laptop drive had several bad sectors. I called Asus, and after less than a 5 minute wait was talking to a human being. I explained that a low-level drive scan showed several bad sectors on the drive, and that this indicated a hardware rather than software problem. Rather than having me reinstall Windows, or some other bs, I was told I could return the laptop or the bare drive for service with a 2-3 day turnaround. I shipped the bare drive, and received a replacement 2 business days after they received the RMA drive. Not bad.

    1. Re:Asus battery life claims believable by PitaBred · · Score: 2, Insightful

      8 days for an RMA turnaround? That's not bad at all. It can be a month or more here in the US, depending on who you're RMAing to.

  11. Promises, promises by elrous0 · · Score: 3, Insightful

    Yeah, and we'll have a man on Mars in 2035, Obama will change Washington, and Duke Nuke'em Forever will be out any day now.

    --
    SJW: Someone who has run out of real oppression, and has to fake it.
  12. Bloatware? by meustrus · · Score: 4, Interesting

    Looks to me like the software to accomplish this is one of those programs the manufacturer bundles on your computer, not an architectural change. If I have to tolerate a 6 month trial of MS Office, Norton Antivirus, several dozen casual games distributed as adware, and whatever other "productivity" software they decide I want, then no thanks. Bundled software should be possible to separate from each other.

    Another important question: will it run Linux?

    --
    I sometimes ask revealing, often ignorant-seeming questions. Maybe they're harder to answer than you think.
    1. Re:Bloatware? by jasonwc · · Score: 2, Informative

      My Asus U80A laptop uses the "Asus Power4gear Hybrid" windows software to maximize battery life. It allows you to cap the maximum CPU frequency, set Wifi and other devices to a low-power mode, and disable Windows features such as Aero. Battery life can be increased 33-50% from Windows "Battery" modes simply by using the software's default setting which uses a low-power mode for Wifi and caps CPU frequency at 60% of the maximum.

      Thus, I imagine this will not work on Linux. However, this isn't unusual. I've generally gotten worse battery life in Ubuntu than Windows, especially when using the manufacturer's proprietary software to maximize battery life, which is only available for Windows.

  13. Re:The Most I'd Pay For a High-End Laptop Is: by Anonymous Coward · · Score: 2, Informative

    To me, a highend laptop is still 3k. (and really they still are) Heck I still remember 5-8k laptops and 5-8k was a lot more money 15 years ago than it is now...

    Plus since when is an Asus laptop highend? Every Asus product I've ever had was a value purchase, and definitely subpar in the quality department.

  14. SilentPCReview has a review, got over 9hrs by Chirs · · Score: 2, Interesting

    There's a review at:

    http://www.silentpcreview.com/asus-ul80vt

    They got a runtime of 9hrs 11min while web browsing, but it was running faster than expected so they thought that 10 hrs wasn't out of the realm of possibility.

  15. Re:The Most I'd Pay For a High-End Laptop Is: by daniorerio · · Score: 3, Informative

    Consumer electronics are cheaper in the states, so you can't compare like that. What ships for $1000 often costs EU 1000 (=$1450!) or even more in Europe.

  16. Re:Useless widgets by robot256 · · Score: 2, Informative

    So basically it's like the task manager?

    Umm, no. The task manager only shows CPU usage as a percentage of maximum usage at either present or maximum clock speed. This widget duplicates a graph shown in the Win7 Resource Monitor and tracks the actual CPU clock speed (in gigahertz), because the auto-clocking software changes the CPU speed in response to demand. My Win7/Core2 machine does this, but presumably ASUS is more aggressive in clocking down the i7 chip.

  17. Re:The Most I'd Pay For a High-End Laptop Is: by PopeRatzo · · Score: 2, Insightful

    To me, a highend laptop is still 3k.

    You are the reason a 5-room bungalow near Cupertino costs $2.5 million.

    I think this article uses >$1000 to mean "high end" because it assumes the people buying them are not insane or status-whores.

    --
    You are welcome on my lawn.
  18. Re:Lies. Slander. by Firehed · · Score: 4, Insightful

    I wish they'd start speccing battery life numbers based off h264 playback rather than DVDs. Or more to the point, include a dedicated lower-power decoder chip. I haven't touched DVDs in quite a long time, but between ripped movies and web streaming, there's a ton of h264 playback going on. I haven't done benchmarks on battery drain, but the extra CPU juice required (compared to mpeg2/4) seems to more than offset the savings of not having a dvd drive spinning the whole time. The high WiFi activity during most video playback doesn't help either.

    --
    How are sites slashdotted when nobody reads TFAs?
  19. Re:Dynamic Clocking vs Two GPUs by robot256 · · Score: 5, Interesting

    My Thinkpad T400 has two GPUs. One is an Intel GMA4500, the other is an ATI Mobility Radeon HD 3400. Running with the Intel GPU cuts off a full third of my power consumption because it uses the main CPU and main memory instead of dedicated chips. But switching between the two GPUs is iffy at best and usually requires a reboot. If I get stuck on the Intel GPU then I can't play games until I reboot and switch to the ATI GPU, so I usually stay on the ATI unless I really need battery life.

    What is significant about what ASUS is doing is the PC will *automagically* switch to the high-performance GPU when you start up a game or a flash video, then switch back when you go back to word processing. This is something that has never been done before and is a major step towards making "switchable graphics" truly useful.

    That is, of course, assuming that the ASUS power management app doesn't crash all the time leaving your system in an unstable state.

  20. Re:Dynamic Clocking vs Two GPUs by icegreentea · · Score: 3, Informative

    I have a T400 as well, but I can usually (like 98% of the time) switch between cards without a reboot. Are you sure you got the right drivers and stuff? I think if you remove all of the default Lenovo software, you end up with some problems. You need to keep the Lenovo battery/power management software (sweet! two battery gauges).

  21. Re:Turbo Button vs Dynamic Clocking by fuzzyfuzzyfungus · · Score: 2, Interesting

    One of the GPUs is, almost definitely, whatever GPU was integrated into the chipset. It'll be weak as hell; but use minimal power and be virtually free in terms of board space and bill of materials.

    The second GPU will be whatever they picked for when actual performance is needed. It will add cost, space, and heat; but there is really no alternative if you want to have actual power available. Odds are, it uses more power in its lowest stable voltage/clock state than the integrated GPU does at full power.

  22. Re:The Most I'd Pay For a High-End Laptop Is: by LUH+3418 · · Score: 2, Insightful

    If I'm not mistaken, batteries generate less heat when you pull out less current. A battery made up of very many cells should dissipate less heat per unit area than a more compact one.

  23. Re:The Most I'd Pay For a High-End Laptop Is: by ozmanjusri · · Score: 2, Informative
    Plus since when is an Asus laptop highend? Every Asus product I've ever had was a value purchase, and definitely subpar in the quality department.

    Maybe you should rethink your definition of quality.

    Synopsis:
    SquareTrade analyzed failure rates for over 30,000 new laptop computers covered by SquareTrade Laptop Warranty plans and found that one-third of all laptops will fail within 3 years. SquareTrade also found that netbooks are 20% more unreliable than other laptops, and that Asus and Toshiba are the most reliable laptop brands.

    http://www.squaretrade.com/pages/laptop-reliability-1109

    --
    "I've got more toys than Teruhisa Kitahara."
  24. Re:Lies. Slander. by Simploid · · Score: 2, Informative

    Your wish is granted. Anandtech tested the battery life with x264 720P video and they got about 6 hours out of it.

    http://www.anandtech.com/mobile/showdoc.aspx?i=3689&p=7