Battery Life Compared

Battery Life - Idle

Battery Life - Internet

Battery Life - x264 Video

Battery Life - DVD Video

Relative Battery Life

Here we can see the flipside of the performance coin: the higher performance laptops all have worse battery life. In fact, looking at battery life relative to capacity, the NV58 is a lot closer to the MacBook than any other reasonably fast laptop we've tested. Apple uses the NVIDIA GeForce 9400M IGP, which definitely helps with power consumption and battery life. However, Apple also uses lower TDP processors and OS X seems to do a better job at keeping the CPU in low-power C-states than Windows. Hopefully we will see some improvement with Windows 7, but so far Windows is still an order of magnitude behind OS X.

Synthetic Graphics Performance Power Requirements and Noise Levels
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  • 7Enigma - Wednesday, August 12, 2009 - link

    Agreed. People are not going to be gaming on the latest (or even last-gen FPS') but most certainly would probably be doing MMO games. And of all the games The Sims (2 or 3) should be included. That is probably the largest non-MMO game out there for the casual gamer, of which these laptops are perfectly suited.
  • KidneyBean - Wednesday, August 12, 2009 - link

    Or how about Source games like Half-Life 2, Team Fortress 2, and Counter-Strike 2?

    Those should run faster than the latest FPS.
  • hyc - Wednesday, August 12, 2009 - link

    Very few vendors actually sell comparable models of AMD and Intel notebooks. I don't think HP's dv5z (which I own, and is already discontinued) is really comparable to their dv5t.

    And I've yet to find anyone selling an AMD laptop with 15.4" WUXGA screen. So far the only possibilities have been Dell or Lenovo, and they're all Intel. It's pathetic that AMD has the best graphics cards now but you can't get an AMD combo paired with the best screens.

    Show me an AMD notebook with 15.4" WUXGA LED-backlit screen. (Oh, and backlit keyboard too, please.) I'll buy it. I'm sick of seeing AMD designs getting the poor cousin treatment, I want all the same top notch feature choices the Intel models get...
  • strikeback03 - Thursday, August 13, 2009 - link

    You realize you can get an AMD discrete GPU with an Intel CPU/chipset, right? Which this article has shown that the GPU is really the only part of the AMD system worth owning.
  • cactusdog - Wednesday, August 12, 2009 - link

    Nice review, it answered some questions i had.
  • cfaalm - Wednesday, August 12, 2009 - link



    quote:

    If you really want improved battery life, you'd be looking at an Intel platform with a high-capacity battery - or a MacBook.


    Talking about a price premium over a $ 500 - 580 notebook:
  • damianrobertjones - Wednesday, August 12, 2009 - link

    Or if Dailytech really isn't one sided towards Apple, then maybe the reviewer could also add a Linux build to the scene.. Standard laptop, linux.. what would the battery life be?????

  • hyc - Wednesday, August 12, 2009 - link

    Likely worse on the AMD system. At least, the open source ATI drivers' support for power management still doesn't handle all of the power save features that the chipset offers.
  • medi01 - Wednesday, August 12, 2009 - link

    Why not compare to intel notebook with nvidia graphic card?
  • samspqr - Wednesday, August 12, 2009 - link

    the labels on the x axis of the power consumption graph are completely deceiving

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