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AMD Launches Low-Voltage Processors

mgoulding writes "CoolTechZone reports that AMD has released its low-power Athlon processors, which are designed to target the ultra-lightweight notebook market. The low-voltage chips will use smaller batteries and produce less heat. Acer plans to ship systems using the processors by the end of May." Acer plans to use them in their Ferrari line of thin laptops.

40 of 248 comments (clear)

  1. transmeta by mandalayx · · Score: 4, Interesting

    The competitor that comes to my mind is Sharp and their Transmeta Efficeon processor. That notebook is quoted as being 2 pounds and 1GHZ/512MB/20GB/10.4" for $1499.

    I do want a laptop for class and just having around, so I was strongly considering getting the Sharp, but constructive suggestions welcomed..

    1. Re:transmeta by Glock27 · · Score: 3, Insightful
      The competitor that comes to my mind is Sharp and their Transmeta Efficeon processor. That notebook is quoted as being 2 pounds and 1GHZ/512MB/20GB/10.4" for $1499.

      I don't think there's any comparison on performance...the 2800+ AMD part should completely smoke the Transmeta. Battery life...well I'm not sure but how long are you really planning on running unplugged at a time? I'd guess the AMD parts are intended to run for ~5 hours with moderate use.

      Anyone have any benchmarks on the Efficeon?

      --
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    2. Re:transmeta by Rodrin · · Score: 4, Interesting

      Well in terms of battery life the Efficeon blows the AMD away, however because of cache and optimization the AMD will blow a Transmeta processor away any day. The same goes for the fancy VIA processors that are "mobile". There is a difference between low power and mobile processors.

    3. Re:transmeta by evilviper · · Score: 3, Insightful
      I don't think that laptop manufacturers differ so much that you should evaluate them based on brand. Evaluate them based on model and features, not brand.

      Not true at all... That is probably the single most important issue with notebooks.

      Notebooks are not desktops. If a part is crap, you can't grab another and replace it... You have to go through the company. You better be buying from a company you REALLY trust, because notebooks are 100% lock-in.

      Incidentally, I'm in the process of suing Sotec/Averatec...
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  2. Why is it called low-voltage? by ForestGrump · · Score: 3, Interesting

    ok, it runs on a lower voltage.
    But isn't the reality that they have a lower wattage?
    Wattage being what really matters when it comes to power consumption and heat displacemnet.

    -Grump

    --
    Is it true that more people vote for the winner of American Idol, than vote for the president? -Ali G.
    1. Re:Why is it called low-voltage? by Rosco+P.+Coltrane · · Score: 3, Informative

      Let's analyze and translate the above post shall we:

      ok, it runs on a lower voltage.

      That much is said in the article.

      But isn't the reality that they have a lower wattage?

      "wattage", also called power, only has to do with voltage for a fixed resistance. I suppose AMD lowered the voltage to lower the power consumption too, though, so what you said is obvious.

      Wattage being what really matters when it comes to power consumption and heat displacemnet.

      Yes, power is indeed what matters when it comes to power consumption.

      In short: what a stupid post that was...

      --
      "A door is what a dog is perpetually on the wrong side of" - Ogden Nash
    2. Re:Why is it called low-voltage? by Humorously_Inept · · Score: 5, Informative

      Voltage is a squared term in the general power function for a CPU. Lowering the voltage will have a significant effect on power consumption. As you might imagine, the chip's operating frequency is another term in the function.

      --

      ~Someday, I hope to be an aspiring author.
  3. tech info by Coneasfast · · Score: 5, Informative

    here is some tech info in case it gets /.ed

    The other models - 2800+, 3000+, and 3200+ are rated to operate at 65W while the 2700+ is rated to operate at 35W. The Pentium M processor models - 1.5Ghz, 1.6Ghz, and 1.7Ghz are set to operate at 24.5W. The AMD 2700+ budget Mobile processor still consumes more power than the Centrino platform, which uses Intel's Pentium M chips. Another big difference between the rest of Athlon64 Mobile processors from AMD and the 2700+ budget level Mobile processor is the amount of L2 cache. The 2700+ processor has 512KB cache while the rest of the models house 1MB cache. The 2700+ is clocked at 1.6Ghz; the same clock speed as the 2800+, which has 1MB L2 cache.

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    1. Re:tech info by number · · Score: 5, Informative
      What you want are the Processor Electrical Specifications for any and all CPUs you can think of.

      If you're serious about quiet (or preferably, silent) computing, the most valuable site I know of is Silent PC Review.

  4. Big Mistake, AMD... by Deraj+DeZine · · Score: 5, Funny

    They should have gone the other way, making fast, but hot processors, and then marketed their notebook/travel iron combos.

    No, I don't iron my clothes either, but it's the thought that counts, right?

    --
    True story.
  5. Less heat? by rms_nz · · Score: 5, Funny

    If laptops start producing less heat, then what are we going to use for leg warmers on those cold winterery days?

  6. Low Voltage Battery + Smaller battery = ? by SCSi · · Score: 5, Interesting

    So this means that laptops will still have the same low battery life as they do now. Why dont they make low voltage processors with larger batteries so you can get more than a few hours of runtime.

    1. Re:Low Voltage Battery + Smaller battery = ? by Brandybuck · · Score: 3, Interesting

      Amen!

      1998 == fat 3 hour battery
      2001 == medium 3 hour battery
      2004 == thin 3 hour battery

      Have we become so sedentary that the weight of last year's laptop is going to cause heart attacks and strokes?

      --
      Don't blame me, I didn't vote for either of them!
  7. Re:the final frontier by tibike77 · · Score: 5, Insightful

    Intel (as Microsoft and other "dinosaurs") will never get "really low in stockprice", because they have too much accumulated wealth to get out of most situations. Personally, I have used a mix of all kinds of MoBos and CPUs from everybody (yeah, even a Cyrix) and I can't say I have been extremely pleased nor displeased by any of them. The only news here is (therefore) that a new "cooler" (pun intended) CPU is here for the laptop market, hence prices will go down... shoppers rejoice :)

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  8. Great news for people like myself... by proxima · · Score: 4, Interesting

    My next notebook will probably contain a low-power processor. There'e the Servelinux Enote for $800 that uses a Via processor like my mini-itx motherboard, but I suspect that AMD will be able to come up with something that's a little faster (it doesn't need to be blazing, but a 800 Mhz Via runs like a 600 Mhz P3 it seems).

    I'd like to have either a 2.5-3lb subnotebook with a nice 12" screen (and preferably below $1k, like the Servelinux), or a ~4lb notebook that gets a much longer battery life than anything else on the market (besides maybe a Mac), but also is below $1k. No CDROM or large screen needed in my case, cause I'm not looking for a desktop replacement.

    For now, though, the Servelinux enote is too obscure for me to look at it seriously, and I'll stick with my used 7020 (?) Toshiba Portege (at a little over 4 lbs I think, with a nearly useless battery).

    I've personally seen and played with the enote, anyone have comments on other laptops in the same category (maybe from Transmeta instead?). Cheap, light, and fast, pick three; I like cheap and light.

    --
    "The universe seems neither benign nor hostile, merely indifferent." --Carl Sagan
    1. Re:Great news for people like myself... by proxima · · Score: 5, Funny

      Cheap, light, and fast, pick three; I like cheap and light.

      Whoops, I meant pick two of course.

      --
      "The universe seems neither benign nor hostile, merely indifferent." --Carl Sagan
  9. hmm by TechnologyX · · Score: 5, Funny

    Ferrari line

    But I'm on a Ford Tempo budget.. guess it's back to leg burns for me

    --
    Slashdot sucks
  10. What, for CMOS? by The+Mainframe · · Score: 4, Funny

    "The low-voltage chips will use smaller batteries and produce less heat."

    So these processors have built in batteries, eh? ;)

    --
    --Bennett Prescott
    Former Lord Of Packets
  11. Re:the final frontier by Rodrin · · Score: 4, Insightful

    Most geeks I talk to, unless they are crazy or otherwise weird, agree that AMD is the processor to go with. I can handle a little more heat when it comes to a $100 price difference most of the time. And now that technically the intel 64bit processors are a copy of AMD's Athlon64 perhaps AMD will lead and intel will walk behind. You never know.

  12. A non-overheating Italian car by b0s0z0ku · · Score: 5, Funny

    Acer plans to use them in their Ferrari line of thin laptops.
    Is this the same laptop that was reviewed here a while ago? The one that makes revving sounds when booted up? Anyway, there's something wrong with putting a cool-running processor in a product named after an Italian car. Italian cars are supposed to overheat - when I had my FIAT/Pininfarina Spyder, part of the fun was sitting in traffic on a hot, humid summer day with the heater fully on to avoid cooking the engine.
    b0s0z0ku

  13. Ferarri Line by The_Rippa · · Score: 3, Funny

    Great, tens of people will be enjoying the benefits of the new processor!

  14. Why... by rekoil · · Score: 5, Insightful

    can't anyone see the appeal of using chips like these in a ultra-quiet desktop model? A/V hobbyists would go nuts over them, providing that the CPU horsepower is sufficient...

    1. Re:Why... by murgee · · Score: 3, Informative

      You can buy the Athlon XP Mobile chip now, and it works in a regular Athlon board. I'd imagine the same would be tru for the Athlon64 mobiles.. 'less you're talking about OEM machines.

      --
      mrg
  15. Low Volt AMDs? by An-Unnecessarily-Lon · · Score: 3, Funny

    Man I want my 1.21 jigawatt proccesor.

  16. hanging around by poptones · · Score: 4, Interesting
    No way would I pay $1000 or more for a laptop computer. No matter what you do it's still going to have one of those cramped keyboards and limited expansion without carrying aroound a bag of USB goodies. And if you drop it then what? Yeah you can get an expensive new system with one of those "oops I dropped it" warranties, but that same money would buy a LOT of spare parts for an older, well built machine.

    For $1500 I can have, like, 6 or 7 T600 stinkpads. Or maybe just one or two and a sack of batteries to keep it running 12 hours or more. Gets the job done, and if I drop it I don't care so much. "No one will ever need more than 500MHz and 512MB of memory."

    I've had a lot of laptops and they all sucked compared to my (relatively) light, compact little thinkpad. They work great with linux and they feel so soft and squishy - if batman carried a laptop, he'd carry a classic thinkpad.

  17. Re:the final frontier by geekoid · · Score: 3, Insightful

    well, IF AMD becomes the market leader, rest assure most geeks will switch to Intel.
    These days, being a geek doesn't mean liking the best designed products, but you also have to like the underdog as well.

    --
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  18. Side by Side? by randomErr · · Score: 3, Interesting

    Someone mentioned that Via's processors run slower then thier full powered conterparts. I can't wait until someone does a side-by=side of AMD/Via/Intel of the lower power chips.

    --
    You say things that offend me and I can deal with it. Can you?
  19. Yay, even hotter slow laptops! by Anonymous Coward · · Score: 3, Funny

    Soon we'll have laptops with 1THz 128-bit CPUs that can have up to 16 simultaneous hyperthreads running, all blocked on dog-slow laptop hard disk I/O 99.9999% of the time. We won't notice because our penises will explode in a cloud of steam as soon as we turn them on.

    Awesome!

  20. Re:I bet these OC nicely by Carnildo · · Score: 4, Insightful

    Only if you do it wrong. If you know how to overclock, it gains you:

    1) Serious savings. A low-speed CPU in a group can usually be overclocked to match the speed of the top CPU in that group without any special measures
    2) Extra speed. You can almost always clock a CPU 5%-10% beyond the top speed for a processor group. If you're lucky, or using extreme cooling, you can get 20% or more.

    And sometimes the extra speed isn't available for a while. When I purchased my current computer, the XP2100+ (266FSB) was the fastest CPU around. I got an XP2000+ (266FSB) and overclocked it to be an XP2200+ (333FSB), a chip that didn't show up until nine months later.

    --
    "They redundantly repeated themselves over and over again incessantly without end ad infinitum" -- ibid.
  21. Re:I bet these OC nicely by Humorously_Inept · · Score: 4, Informative

    Actually, because of the way CPUs are binned to meet market demand, overclocking a CPU isn't necessarily doing anything to it that's bad. All CPUs are tested after fabrication and sold according to their capabilities. In the event that demand for a lower end processor is high, a processor that tests well can be marked as and sold as a lower-end model. It's still the same processor it was when it was tested, though. In this case, you might drop a CPU into your computer and experience exceptional overclocking potential. I have an XP1600+ that overclocks to 2200+ at default voltage and works ideally under a torturous FAH load. In fact, you could view the chip as being underclocked at the factory instead of overclocked by the user! :) Cooling is an important factor, but its nowhere near as important as good luck (or picking a good stepping).

    --

    ~Someday, I hope to be an aspiring author.
  22. Low-voltage + PowerNow == PentiumM Competition by david_reese · · Score: 5, Interesting
    Previously, only the VIA and Transmeta chips were in the same range of power consumption (actually much less) as the Pentium-M (which, tho I'm an AMD fan, is a pretty sweet processor). But those processors were pretty lightweight in the power department.

    Now the Athlon64 mobiles, which already run at a cool 800Mhz when not taxed, combined with a voltage decrease, should create something that is at the same time powerful, yet battery-preserving.

    Kicker: it's AMD64, so if you have 64bit OS and apps, it will really dominate.

    1. Re:Low-voltage + PowerNow == PentiumM Competition by evilviper · · Score: 3, Interesting
      Previously, only the VIA and Transmeta chips were in the same range of power consumption (actually much less)

      Why do people keep doing this? Sure VIA processors are lower power than current Intel/AMD processors, but that's because VIA processors have terrible performance. If you compare a 1GHz VIA processor to a 500MHz Pentium, you'll see that both the performance and power usage are very similar.

      I'm quite psyched about AMD's new processors though. AMD's XP procs have been beating Intel at maximum power consumption even with better performance, and AMD have finally started kicking their chipset manufacturers into line. I think the effect AMD64 had on AMD's whole company has been far more significant than the processor itself.
      --
      Slashdot gets worse every day... Pipedot: News for nerds, without the corporate slant
  23. Re:the final frontier by 13Echo · · Score: 3, Insightful

    Not particularly. Geeks will normally just by the fastest CPU for the right price. For many years, that has been AMD. Intel is getting to be more competitive, but Athlons still perform better (in most respects) than a Pentium 4 of the same price.

    There's a reason why AMD has slowly been gaining on Intel for market share, and that reason is why they accounted for 52% of desktop CPUs that shipped in a recent week. The "Intel Inside" campaign is wearing off, especially when Intel is trying to compete with AMD by releasing their own 64 bit CPUs that are based off of AMD's pioneering X86-64 chips. Who's doing the reverse engineering now?

  24. We Want Low Power CPU on the *DESKTOP* too by Wolfier · · Score: 4, Insightful

    I'm sure a lot of us are looking towards the day where we can eliminate all crazy spinning fans from our computers.

    1. Re:We Want Low Power CPU on the *DESKTOP* too by Brian+Stretch · · Score: 4, Informative

      Or do the next best thing:

      1) Buy an Athlon 64 PC
      2) Enable PowerNow! power management
      3) Buy a power supply with a variable-speed fan (I recommend this one) and enable CPU fan speed control on the motherboard (Q-Fan in ASUS's BIOS, IIRC).

      When you're just reading Slashdot, the CPU runs at 800MHz and power consumption drops waaay down. When you're playing UT2004, the CPU runs flat out and the fans speed up. It works extremely well.

    2. Re:We Want Low Power CPU on the *DESKTOP* too by evilviper · · Score: 3, Informative
      I'm sure a lot of us are looking towards the day where we can eliminate all crazy spinning fans from our computers.

      Here we go again...
      It always has been, and still is, entirely possible to have a system without any fans.

      Just about any processor can be run with nothing but a large heatsink provide that you underclock it significantly. Drop a 2GHz processor down to 800MHz and you probably won't need a fan.

      Oh, so you want a your system without a fan to be fast, eh? Well there's always water-cooling. But of course, you don't want to spend that much... Well, you can't have it all. If you choose silence, you have to spend a lot of money, or get poor performance.

      Personally, I think the best way to just to replace the crappy fans and heatsinks with a tempurature controlled themaltake... Then when your processor is cool the fans will be slow and silent, but when your processor are running hot, the fans can cool everything down. I happen to like that tradeoff the best.

      Choosing between AMD and Intel is difficult. Intel processor have a higher maximum tempurature, but they run cooler under typical load. AMD has recently been trying to fix this. This just happens to be a subject I detailed in my latest Journal entry.
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  25. Article and summary are wrong by The+Wicked+Priest · · Score: 4, Informative

    The announcement is of the mobile, low-voltage Athlon 64, not just the mobile, low-voltage Athlon -- which has been in the very machine I'm typing on for nearly a year. This is referenced in one place in the article, but the chips are misleadingly referred to simply as "Athlon" in the title, and several more times.

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  26. Re:the final frontier by Spoing · · Score: 3, Insightful
    1. well, IF AMD becomes the market leader, rest assure most geeks will switch to Intel.

      These days, being a geek doesn't mean liking the best designed products, but you also have to like the underdog as well.

    Do you have a specific list to share (where popular is unfairly ragged on while obscure has an undeserved geek/wannabe-geek following)? Maybe I misunderstand.

    For the record: I have bought an even split of AMD and Intel over the years. I don't see that changing, though it entirely depends on what goes around the processor. It's tough to pick a good sweet spot in laptops/notebooks mostly because of the extras (wanted and unwanted).

    There are many gems out there that aren't popular so personally I get excited when I find them. Usually, they follow standards properly (in hardware and/or software). I also like booring and cheap generic basics too; mice, keyboards, hard drives, 100 or 100/1000 bit ethernet, USB 2 (not the dumbed down one), ... .

    --
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  27. Re:Laptops... by jrockway · · Score: 3, Informative

    Stastically, AMD isn't doing anything new really. However, in terms of mindshare, they're doing quite well. Remember the X86-64 spec? Intel seems to have copied AMD. This shows that AMD is ahead in something.

    Frankly, whoever gives me a 5GHz 64-bit processor for $100 first wins in my mind :-D

    --
    My other car is first.
  28. Re:Not ohm's law by rco3 · · Score: 4, Informative

    No. Ohm's law is in play. Charging a capacitor takes in energy, yes, but that energy is stored as charge, not radiated as heat. The heat comes from I^2*R loss. The I part comes when the capacitor must be charged.

    So, it's really pretty simple. Lower voltages mean that the capacitors don't take in as much charge, and therefore don't require as much current to charge up. Less current == less I^2*R loss == less power consumed.

    You can get similar improvements by reducing the size of the capacitances, which can be done by reducing the size of the FET gates... which means a smaller feature size.

    You are correct that the transistors look mostly like capacitors, but you are incorrect in stating that power is stored in the junction and that creates heat. Power is dissipated in the interconnects, sources and drains, and in the vias between layers. This is also one big reason why we went to copper - lower resistance interconnects == less power lost to resistance.

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