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Intel’s Mobile Core i5 And Core i3: Arrandale Is For The Rest Of Us

MobileMark 2007

In addition to our usual suite of performance and power testing, we also ran the Asus K42F and HP’s Pavillion dv4-1555dx through MobileMark 2007’s Productivity suite. Having switched out our 160GB Intel SSD in favor of a clean 500GB Seagate Momentus 5400.6 with the picky BAPCo app installed, we saw the following battery life rating and performance qualification scores:

Battery Life RatingPerformance Qualification
Arrandale (Asus K42F)285 minutes234
Penryn (HP dv4-1555dx)235 minutes209

Clearly, the Asus wins in both performance and longevity, but let’s also take into account differences in battery capacity between these two mobile platforms. Asus outfits its offering with a 63Wh Li-Ion battery pack (14.4V, 4.4Ah), while HP employs a 47Wh power supply (10.8V, 4.2Ah).

With a significant advantage in energy storage, it’s really no wonder Asus was able to walk away with this one. Let’s normalize the results a bit to see whether the win stands up, all things equal.

MinutesWatt-HoursMinutes/Wh
Arrandale (Asus K42F)285634.5 min/Wh
Penryn (HP dv4-1555dx)235475 min/Wh

When you do the math, the Montevina-based HP system actually lasts longer per available Wh of energy available to it, but because HP ships such a small battery, the notebook doesn’t end up lasting as long. Thus, while the previous page really demonstrated how far Intel has come in bringing down idle power consumption, distilling down the numbers reminds us that there’s a price to be paid for performance. There’s a fair chance that, if we were to turn off Turbo Boost and re-run MobileMark or re-chart a PCMark Vantage run, we’d see lower peak power use and the same low idle consumption. Unfortunately, Asus’ EFI setup doesn’t provide access to such an option, so it’ll have to remain conjecture for now.

Chris Angelini
Chris Angelini is an Editor Emeritus at Tom's Hardware US. He edits hardware reviews and covers high-profile CPU and GPU launches.
  • burnley14
    Well played, Intel. You've been knocking it out of the park lately, keep up the good work.
    Reply
  • I'm looking forward to getting an HP laptop with the Arrandale Core i5 processor in the near future.
    Reply
  • It's going to be interesting to see the performance/battery time of the LM and UM processors as I'm in the market for a thin-and-light myself.

    Performance is good but I'm hoping for a viable update to the CULV offerings of yesterday.
    Reply
  • Computer_Lots
    Looks like there are finally some replacements for the Atom, at least in efficiency anyway. Too bad the price is currently too high for the UM versions of these processors to make their way into netbooks. I would guess that even the i5-520UM would destroy the Atom in every benchmark, except maybe power consumption.
    Reply
  • HansVonOhain
    C2D was one of the longest living platforms. But newer tech will replace slower processors.

    Keep it up intel. I do hope that AMD will release some new chips that will be able to compete with intel offerings.
    Reply
  • jasperjones
    ^^^ true that. arrandale will further diminish AMD's role in the mobile processor market. and there's nothing coming up before may.
    Reply
  • Luscious
    Chris, the dv4 series from HP has a 12-cell extended battery available as well rated for 94Wh 2.2A. Once HP makes the transition to Arrandale, all else being same, you can expect the dv4 to hit 8-10 hours easy.
    Reply
  • cangelini
    Thanks for the tip Lucious. I didn't have the higher-capacity battery available to test, but I'd absolutely love to see 8-10 hrs. real-world from an Arrandale-based machine.
    Reply
  • Reynod
    Good bye NVidia ...

    That chops them completely out of the mobile graphics market for the masses ... Intel will pay the RIGHT OEM's some "adjustment" just to make sure their "Strategy" is right to ensure AMD's mobile market is thin and restricted to the backwaters of Bejjing.

    Reply
  • spydercanopus
    Wish you would have compared it to Intel Extreme Graphics 2 or something.
    Reply