Battery Life

Battery life on the Sandy Bridge MacBook Pro improved in our two lighter workload tests by 5%, however under heavy load there was no change. Given that we only saw improvements in our two workloads with built in idle time I suspect Lion may have tweaked some power management settings vs. Snow Leopard, but nothing more. The improvements here might be limited to newer architectures or systems with Apple SSDs however, because they definitely weren't echoed on our older MacBook Pro:

The early 2008 MacBook Pro showed around a 20% decrease in battery life in our two web browsing battery life tests. Once again we saw no difference in our heavy multitasking test. Once again I'm guessing this change is due to some tinkering with OS X's behavior at idle. Our performance data above doesn't suggest any performance issues causing lower battery life on the old Core 2 Duo based MacBook Pro, so there's got to be something keeping the CPU out of its lower idle states during our tests. I checked Activity Monitor during the benchmarks and didn't see anything obvious, meaning it's likely a lower level OS issue. Our own Brian Klug theorized that the lower battery life could be due to the Core 2 Duo MacBook Pro now loading Lion's 64-bit kernel by default instead of the 32-bit kernel like it did in the Snow Leopard days.

The impact is pretty significant on the older MacBook Pro. Older mobile Mac owners dependent on battery life may want to wait to pull the trigger on Lion until at least the first point update.

I will add that something very strange happened on one of our battery life runs with the 2011 MacBook Pro. During our Flash Web Browsing battery life test we recorded a full battery rundown that took under 3 hours, instead of the ~7 hours you see above. Once again I checked Activity Monitor to ensure nothing funny was going on and didn't find anything odd. Subsequent runs couldn't duplicate the result either. It's pretty unusual for us to see that sort of run-to-run variation in our tests so it's not totally clear what happened there, other than Lion does seem to be doing more in the background which could impact battery life than previous iterations of OS X.

Performance: Similar to Snow Leopard Final Thoughts
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  • ebolamonkey3 - Thursday, July 21, 2011 - link

    Well, since Apple retains 30% of the App price, I'm not sure if that figure above is talking about the total amount that customers have spent buying songs and apps, or if that's Apple's revenue (ie: 30% cut) of the pie.
  • PreOmegaZero - Wednesday, July 20, 2011 - link

    Microsoft names the OS versions as such (6.0 vs 6.1) because changing it to 7.0 (like they admit they should have done) broke many older apps/installers that did OS version detection.
    So the version numbering is simply from a compatibility standpoint.
  • darwinosx - Wednesday, July 20, 2011 - link

    These aren't service packs. Its a silly comment which tells us you either don't know what a service pack (which is a Microsoft term for Microsoft software) actually contains or you didn't read this review.
  • Belard - Thursday, July 21, 2011 - link

    Service packs? Apple uses actual version numbers, but in the past few years - they've only been patching Snow Leopard.

    The difference in XP SP1 / SP2 / SP3 is bug fixes, security patches and a few things here and there, but feature wise, no difference. XP-Home/Pro are visually different than XP-MCE (Which is XP Pro with a nice visual face lift but with VPN ripped out).

    I think Apple charges like $50 for a 5 user license upgrade... much better than the lame Win7 (Vista and XP) charging $100 for an upgrade disk which is messy when it comes to a clean install.
  • anactoraaron - Sunday, July 24, 2011 - link

    "much better than the lame Win7 (Vista and XP) charging $100 for an upgrade disk which is messy when it comes to a clean install."

    You have no clue about which you speak. Win7 upgrades/clean installs are simple for even the simplest minds-present party excluded apparently.
  • name99 - Thursday, July 21, 2011 - link

    An improvement? Uhh, you are aware that Snow Leopard ALSO sold for $29?

    The more interesting points you should be making are that:

    - $29 gets you the right to install the OS on EVERY mac you own. It's right there in the TOS. For most people this won't matter much, but for those with a desktop machine, a laptop and a HTPC, it's rather cool.

    - and you get the right to virtualize two instances, if you care

    - and note the conspicuous absence of any sort of DRM covering the OS, not to mention the home/home mini/pro/ real pro/enterprise/super singing & dancing version crap that MS offers up.

    (And, BTW, you get the Dev Tools for free. They were $5 in SL, but I think they've dropped to $0 with Lion.
    As far as I know, Dev Studio is not free, not close.)
  • ATimson - Thursday, July 21, 2011 - link

    Assuming that by "Dev Studio" you mean "Microsoft Visual Studio", yes, they have a fully-functional free version.
  • name99 - Thursday, July 21, 2011 - link

    How come when I go to

    http://www.microsoftstore.com/store/msstore/en_US/...

    I see a bunch of different prices, from $3,800 to $400, but no $0?

    I'm not being pissy, I really want to understand what is going on here.
  • Ryan Smith - Friday, July 22, 2011 - link

    How can you buy something that's free?

    http://www.microsoft.com/visualstudio/en-us/produc...
  • kosmatos - Monday, November 4, 2013 - link

    It's 2013 now, and you were spot on, quicksilvr.

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