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Portables Hardware

Mobile Processor Showdown 192

AnInkle writes "The Tech Report has a head-to-head comparison between the Pentium M760 and the Turion ML-44. From the article: 'AMD has done well with Opteron in servers and the Athlon 64 in desktops, but surely AMD's K8-derived mobile competitor doesn't match up with the Pentium M. Does it?' Conventional wisdom (or marketing genius) says Pentium M's power-saving features and performance-per-watt leave AMD's Turion 64 gasping for batteries. Even though the next-gens are just around the corner, countless mobile systems will sell with these chips over the next year; find out which to choose, whether for performance, battery life or a combination of both."
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Mobile Processor Showdown

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  • mTurion MTs (Score:5, Interesting)

    by evilviper ( 135110 ) on Monday February 13, 2006 @09:55PM (#14712993) Journal
    They mention in the beginning that MTs are lower power than MLs (they are 25W vs. 35W T.D.P. in fact), yet they didn't throw one into the comparison.

    That's lower power, and faster, than even the infamous Core Solo (T1300 1.66GHz 27W TDP).

    There is a 1.666GHz Core Duo LV which is lower power. But, if you don't have much use for dual-core, AMD seems the way to go.

    With all the talk about AMD not yet on 65nm it would seem AMD is still, not just competitive, but ahead of Intel in low-power CPUs, and performance. (It seems like nobody is talking about the benefits of SOI, for some reason)
  • by Belseth ( 835595 ) on Monday February 13, 2006 @10:01PM (#14713032)
    My first notebook, a 386 with a B&W passive matrix, got so hot it warped the case. My current one isn't particularly powerful, I mostly run word processing software and some photoshop, but there's no overheating trouble. I have to blow out the fan area every couple of days but that's about it. I think cutting edge is always going to have heat issues. I'm more concerned these days with video support and hard drive speed than processor power. Those 5400 rpm hard drives are looking pretty whimpy and the on board video cards suck.
  • by Anonymous Coward on Monday February 13, 2006 @10:03PM (#14713039)
    I have to say that I'm impressed with AMD's offering here. For a while I've been under the impression that they were being trounced by Intel in the mobile market (which I'm sure they are in term of sales). However, this review shows that they have improved to a point where they are pretty much on a par with Intel.

    They still have a bit of work to do with the maximum power consumption, but they've managed to get the idle consumption down to where the Pentium M is with similar overall performance. Good work AMD.
  • no centrino duo? (Score:5, Interesting)

    by timeOday ( 582209 ) on Monday February 13, 2006 @10:04PM (#14713047)
    it's somewhat pointless as they don't compare the best of each company's current offerings.
  • by Anonymous Coward on Monday February 13, 2006 @10:09PM (#14713068)
    This test pits a Pentium M against a Turion 64. Granted, this was the comparison for 6 months ago. But Intel now has the Duo Core (Yonah) processor which has a slightly different architecture than Pentium M.

    Not to mention that while Conroe and Merom will be based on the same design principles it is a fresh design.

    I believe the key to Intel's new design will not be its close approximation to the Athlon in performance. The secret is in performance per watt, as they say. High performance computing with as little engergy consumption and heat dissipation as possible. The Athlon 64 architecture looked cool compared to the toaster oven called Netburst, but even against the old Pentium III it is quite hot and hungry. Lifestyle PCs, laptops, and blade servers will all favor the much cooler design from Intel.

    While Athlon 64 will continue to compete on performance and price, without a major architectural change they will be stuck in the hot seat for the next couple of years. And it will only get worse before it gets better because Intel's chip design is truly superior, only held back by a dated bus architecture slated for replacement in 2007.

    While Intel will "win" technologically, they will burn a lot of capital to remain competitive until they do. Lots of Pentium M chips have been stockpiled. By the time Yonah reaches mass production it will be replaced by Merom. Lots of stockpiled Pentium D chips that will be replaced by Conroe. Intel will need to slash prices for processors nobody wants anymore only to flood the market with brand new PC's that don't need to be replaced by the superior technology they so desperately need to release.

    Maybe Intel will sooner push the P4's into a landfill than cut their own throats? Or maybe 2006 will be a good year to start up your own server farm in the basement.
  • by TeknoHog ( 164938 ) on Monday February 13, 2006 @10:41PM (#14713203) Homepage Journal
    Power saving == Heat saving

    So true. All of the power consumed by the CPU is converted into heat. Overheating, though, depends on how well the cooling system works. But even then, higher power requires more cooling, which usually means more noise and bigger size.

    This is why the the Turion's higher power under maximum load concerns me; I often leave my laptop doing something CPU intensive for hours. The system should of course cope with maximum CPU load for extended periods, but I don't want a huge cooling system in my laptop. I'd prefer something small and quiet, even if it means a little slower CPU.

  • by vonsneerderhooten ( 254776 ) * on Monday February 13, 2006 @11:07PM (#14713318)

    Centrino is not a processor, but a group of Intel technologies [intel.com] bundled under one brandname.

    Not only that, but isn't comparing the Intel Core Duo to the single core Turion like apples to oranges? Single core vs. single core makes for an even comparison.

  • Re:But it didn't... (Score:1, Interesting)

    by Anonymous Coward on Monday February 13, 2006 @11:31PM (#14713420)
    ah, but the comparison is unfair from the get go, as they didnt use the 64bit os for the turion64. i can personnally testify that xp pro 64 on my turion 64 runs consideribly better than it did with the basic xp pro. the thing doesnt actually use its full potential on 32 bit oses
  • by msbsod ( 574856 ) on Monday February 13, 2006 @11:35PM (#14713437)
    The author assumed that a notebook CPU runs with 100% load. I have two applications for a notebook: office stuff like writing a message or reading a document, or playing games. Even the latter hardly requires 100% CPU load all the time. For these applications I find a cheap notebook with a software solution like CPU Idle [cpuidle.de] quite adequate. Why spend more money on "mobile" processors? CPU Idle also works fine for desktop PCs.
  • no there's not (Score:4, Interesting)

    by YesIAmAScript ( 886271 ) on Tuesday February 14, 2006 @12:30AM (#14713681)
    There's a big difference between a dual-stream processor (like SUN's new multi-stream offering) and a true dual-core processor. But a dual-core processor works almost exactly like two separate chips, just in a single package. In fact, for AMD, they are exactly the same, for Intel, the dual-core is a bit better off than the two separate chips since they share cache better than two separate Intel chips (but less well than any AMD offering).

    As to the "more under the pedal" stuff of the GP, I can see why you say that, but it's really because the dual-core machine cannot hand all its horsepower to a single process even if it wants to. A single core chip can do so, and will in the case of a single CPU consumptive task. An OS could be designed to never hand over all the CPU to a single task and then a single core would have "more under the pedal" too. But it turns out to generally reduce performance overall.

    I have had several single processor machines and several dual processor ones. I have never felt like I would never want to go back to single processor. Dual processor is nice (my current machine is dual core) but until recently, dual processor (core) just didn't make financial sense. A single core has almost always been much more cost effective than two slower processors because the two processor setup not only requires two chips, but also requires specialized motherboards (and recently big power supplies too).

    But with affordable dual-core single-chip solutions that fit on run-of-the-mill motherboards it seems pretty likely that I'll have more dual-core machines in the future.
  • Re:mTurion MTs (Score:3, Interesting)

    by subsolar2 ( 147428 ) on Tuesday February 14, 2006 @12:52AM (#14713766)
    With all the talk about AMD not yet on 65nm it would seem AMD is still, not just competitive, but ahead of Intel in low-power CPUs, and performance. (It seems like nobody is talking about the benefits of SOI, for some reason)
    AMD uses 90nm SOI ... they licensed the tech from IBM. Intel stills seems to have trouble with SOI and IIRC they developted it themselves rather than licence from IBM.
  • by PitaBred ( 632671 ) <slashdot&pitabred,dyndns,org> on Tuesday February 14, 2006 @01:06AM (#14713802) Homepage
    Was your CPU running at 100% when you were typing that post? I personally like having longer battery life, and most of the time the CPU is closer to idle than to full usage. On a desktop OR a laptop.
  • Re:mTurion MTs (Score:3, Interesting)

    by Deliveranc3 ( 629997 ) <deliverance@level4 . o rg> on Tuesday February 14, 2006 @08:22AM (#14714935) Journal
    Part of it is,
    /me peers through the mists of time...
    When intel was king computers cost $3000-4000 and people had no options.

    Until recently laptops have cost approximately $2000.

    Flash forward to 2006 and you see the $100 laptop and you wonder why there aren't good (feature complete, (80 gig HD, DVD burner, firewire, usb) reasonable performance laptops to match their desktop counterparts.

    The desktop price wars are stagnating and will continue but AMD seems to be releasing $700-800 laptops when those laptops hit $500-600 desktops will need to hit $300.

    Most laptop owners don't need 300 fps in Quake 3. So what we want is a stable processor design that consumes less and less power, with competition between intel and AMD that is what they'll end up offering, not better performance.
  • Re:mTurion MTs (Score:3, Interesting)

    by db32 ( 862117 ) on Tuesday February 14, 2006 @08:45AM (#14715028) Journal
    My guess is that Pentium M is 32 bit, and Turion is 64 bit. I kinda doubt they did any testing of 64bit applications as the benchmarks seem to be limited to Windows use and not Linux (since Windows really isn't that far into the 64 bit world yet) and doing 64 bit benchmarking would be a tad unfair because the Turion would get a score...poor or good...while the Pentium M would just get a 0 for being unable to do the test.

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