Power Consumption

We measured "platform" power consumption at the wall outlet using a Watts Up Pro power meter. We do not include the power numbers for a monitor or external speakers; however, we do install a set of headphones in the audio out jack. We also turn on all peripherals in the BIOS along with enabling all power saving features in the BIOS. We measured idle power consumption after 15 minutes of inactivity and the average power consumption while running the Canyon Flight benchmark in 3DMark06. Power management is set to "Balanced" mode and the prefetch folder is cleared for each test.

Idle Power Consumption

Load Power Consumption - 3DMark06

At idle, Windows XP Pro x64 has the lowest power usage in both single card and dual card operation. Under load, Windows 7 has a very slight advantage compared to the other operating systems. However, there are no real differences overall between Windows 7 and Vista.

Test Setup What about Battery Life?
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  • Adul - Wednesday, May 6, 2009 - link

    MS cash reserves are actually around $26.3 billion
  • snookie - Wednesday, May 6, 2009 - link

    Apple's stock is dramatically higher and they have much more cash in reserve. Xbox sure in hell was designed to be profitable on both hardware and games and neither is. Microsoft knew they would lose money the 1st few years but nothing like this. It's been a total disaster for them financially.

    Investors are bullish on Microsoft? Well a lot of them aren't. Microsoft lost half its value in 2008. Half.

    Q9 has not been dismal for Apple. Biggest 2nd quarter ever in the middle of a recession. i guess that must be because of their commercials though....new iPhone coming up in June which will sell as fast as they can make them and Microsoft can't even get that blind, crippled, and dumb Windows Mobile out the door. This is a company in dire need of new leadership and middle management. Instead their answer is to rant and rave and piecemeal out development to whichever country is cheaper this week? Sound like a long term formula to success to you?
  • chewietobbacca - Thursday, May 7, 2009 - link

    You're kidding right? Apple's stock is higher but their market cap is worth $60 billion less because share prices don't mean sh!t. Apple has fewer shares out there hence each one is worth more, but MSFT is still worth 60billion more than AAPL, and if MSFT goes up to $24 a share again, it'll be worth even more.
  • Patrick Wolf - Wednesday, May 6, 2009 - link

    Psycho...
  • Jjoshua2 - Wednesday, May 6, 2009 - link

    That's good to see its performance is good in general, and its gaming is consistently higher as well. Posting from Windows 7 on my Wind Netbook FTW :)

    Any pricing news? I hope there's a great student rate.
  • griffhamlin - Wednesday, July 15, 2009 - link

    "gaming perfs constistently higher" ???

    are you kidding ? the song remain the same ...
  • samspqr - Wednesday, May 6, 2009 - link

    the main reason I hate vista is because it's not XP: everything looks different, I can never find what I'm looking for, so getting used to it would require an effort that doesn't seem to have any compensating advantages (I don't like fancy UIs -I still use the W2K look- and I don't really play games anymore)

    then, about windows7, I still feel it's just a re-spun new SP for vista, with a UI revision, and the only reason it's getting better reviews than the original vista is that some time has passed, so there are better drivers, and you're testing it on much more powerful hardware

    now, that Wind comment makes me wonder...

    may even I fall on this one?

    we'll see
  • cyriene - Wednesday, May 6, 2009 - link

    I never understood how XP users say they "can never find anything in Vista."
    I'm not Windows expert, but after using my new laptop with Vista for 3 hours I knew where over 95% of the things and setting are located. And mos tof them are in the same place as XP for that matter. Control panel is the same... Start menu slightly different, but similar enough to figure out in 5 seconds. Plus if there is something you're looking for, the Vista help search actually ...HELPED me find it! I was actually suprised how well the help works. Also, if that failed a quick Google search is all it takes.
    I don't feel MS should make ever OS exactly the same with everything in the same place. It makes sense for some things to move, and it isn't hard to find them if you take 5 seconds to do that.
  • dmpk - Saturday, May 30, 2009 - link

    I agree. I think it is easy to find stuff on Vista with a little bit of playing. The transition is same as that from Windows 98 to Windows XP...
  • piroroadkill - Thursday, May 7, 2009 - link

    I completely agree. If you can't find something in Vista and you're used to XP, it's either so unused that it was removed, or you're just not trying, at all.

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