The 2012 MacBook Air (11 & 13-inch) Review
by Anand Lal Shimpi on July 16, 2012 12:53 PM EST- Posted in
- Apple
- Mac
- MacBook Air
- Laptops
- Notebooks
Battery Life
The MacBook Air sees no increase in battery capacity over the previous generation, as a result any improvement in battery life boils down to what we get from Ivy Bridge. I'm stuck rebuilding the battery life results database from scratch now that I've built a new suite of tests for OS X. I've run all three generations of 11-inch MacBook Air through the new suite but I don't have numbers for the older 13-inch MBAs unfortunately. As I mentioned in the rMBP review, the new suite is designed to give accurate data points at three usage models: one light, one medium and one heavy. The combination of all three should give you an idea of the behavior of these systems on battery.
Across the board battery life of the 13-inch MacBook Air is actually quite similar to the Retina MacBook Pro, just from a much smaller battery and without the variability introduced by the rMBP's discrete GPU. If anything the lack of a discrete GPU makes using the MacBook Air much simpler from a battery life perspective. As much as I love Cody Krieger's gfxCardStatus application, it's nice not having to keep an eye on it to see if something silly has triggered the dGPU.
Under light usage the new 13-inch MacBook Air is easily able to meet Apple's claim of 7 hours of battery life. The 11-inch model does the same to its 5 hours rating, beating it by the same 30 minute margin as the 13.
The medium workload thins the herd a bit, with the 13-inch Air still coming out on top but at 5.35 hours. The 11-inch Air drops below 4 hours, which is an improvement over the previous two generations of 11-inch Airs. Once again we see an example of Ivy Bridge doing better than Sandy Bridge when it comes to mobile power usage.
Under heavy load is really where we see Intel's 22nm process deliver the gold. Here both of the 2012 MacBook Air models do very well. With the 13-inch MBA significantly outpacing even the rMBP with its 95Wh battery, while doing the exact same amount of work.
The 13-inch MacBook Air continues to be Apple's best notebook for those who care about battery life. The 11 offers portability but you do take a significant hit in battery life.
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KPOM - Tuesday, July 17, 2012 - link
If you want to tinker with the system, get to know Terminal. It's a fully functional, full-blown Unix command line. Lots of Mac "tricks" involve using Terminal.There is a lot of eye candy in OS X, and unlike Windows, the standard utilities don't include lots of customizations, as that's a deliberate design decision. However, the functionality is there. OS X provides X Window support as well.
Apple isn't a Windows OEM. They aren't obligated to optimize their PCs to run Windows. They make it available as a backstop. It isn't a matter of "forcing" people to us OS X. No one is "forced" to use OS X or buy a Mac. Boot Camp makes it less "risky" for someone with a lot of legacy software to make the switch since it provides a way for it to work. It doesn't promise and Apple doesn't advertise a system optimized to run Windows.
Karltheghost - Wednesday, July 18, 2012 - link
I think you're still getting me wrong. . .I live in Europe and here apple isn't as strong as in the USA for example. 90% are using Windows here. However, there are many people who would like to buy a macbook to run another OS on it, because they like the hardware. And actually it is officialy sold to possibly be used with Windows (If you go into a store, ask the guy at the counter if you can use windows the answer is yes) . But that's only possible with huge restrictions. They would sell a ton more machines if they would give full support for other OS.
And the other matter according OSX that you've overlooked is their privacy policy and license agreement. Data privacy is quite a big deal to many persons here and to me it's one, if not the main reason not to use OSX
pmhparis - Wednesday, July 18, 2012 - link
You vastly overstate the problems with using Windows on Apple Hardware to the point that I see sour grapes in your comments.I'm coming from a background of years of Windows PCs. For the last few years I was a regular user of VMWare to get access to the different OS environments I need.
I bought a rMBP to replace a Dell e6500 that was coming to the end of it's rope and my collegues are all drooling over how relatively Parralels makes using Windows VMs in OSX. The fact that it just works largely overcomes the minor problem of any performance hit. Besides, the rMBP is brand new and thus faster than all the other PCs so the Windows VMs are still faster than their PCs.
I very rarely see the need to actually boot to windows using bootcamp as the windows bootcamp partition is shared with a VM instance btw so it's the same "machine" whether in a VM or in parallels, When using bootcamp the battery drains faster but even so the rMBP has a longer battery life.
As someone actually using windows on a a rMBP the only reasons I can see for your comments are all irrational
Karltheghost - Wednesday, July 18, 2012 - link
"Besides, the rMBP is brand new and thus faster than all the other PCs so the Windows VMs are still faster than their PCs."But what you don't mention is, that it is still slower than it would be with decent drivers . . . or still slower than a PC Laptop with similar hardware.
I don't want to run Windows in a VM, i want Windows (or Linux) ONLY, no OSX at all.
"When using bootcamp the battery drains faster "
This sounds like a restriction to me. I don't know about the new rMBP but with the 2011er MBP it was like 30 or 40% battery capacity just vanished.
Don't get me wrong, if i would get the same battery life and computing power running Windows (or Linux) on the MBA, i would buy it. But as it seems to me i may be overstating a bit but you are trying to sweep this (nevertheless existing) problem under the carpet
KPOM - Friday, July 20, 2012 - link
But again, you don't seem to "get" that Apple doesn't want to sell you a Mac so that you can run Windows on it. They try to sell an integrated experience.Would the iPhone sell more if they let you run Android on it? Do you think Apple would ever do that? Would you expect them to?
phillyry - Tuesday, March 26, 2013 - link
Battery life doesn't magically disappear. It's just not as good under Window 7 as it is under OS X.phillyry - Tuesday, March 26, 2013 - link
But the point was that some people just want the hardware.The point was also made that the sales reps at the Apple Stores say that if runs Windows.
Hopefully we all know to take the words of sales reps with a grain of salt.
Win7 runs alright and they did improve the battery life with the last update but the trackpad lacking all the OS X gestures is a real nag.
phillyry - Tuesday, March 26, 2013 - link
"a friend of mine payed 170€ just for a new iphone battery". Seriously?Where I live you can walk in to any Apple store with any iOS device and, if they can't fix it on the spot (okay, appointment required), then they'll offer you a replacement of the device for $100.
KoolAidMan1 - Wednesday, July 18, 2012 - link
Not at all, its just that the hater posts are irrational as usual.As for being disposable as you said in a post below, nonsense. Macs hold their resale value VERY well, I wish that my PC parts could be sold for as much after 2-3 years. The longest I've ever held any of my machines were my Macs (6 years for one of my production desktops).
The rest of your post is based around anecdotal evidence. I don't know a single person who returned their Macs after only a few weeks based around "flaws" that you don't go into. Again, quite the opposite, longevity and high resale value are two huge things you're getting with one.
Karltheghost - Wednesday, July 18, 2012 - link
Fanboys are irrational as well ;)Actually there are PC parts which can be resold for a good price, look at the Thinkpads or Toughbooks.
Of course it's anecdotal evidence, like i said so in my posts . . . but actually you'll find some manufactor whose "official" reputation is a lot better than personal experience in every market. Usually where you've got so aggressive Marketing, that objectivity is lost. For example there is FOX for mountainbike suspension or beats in the audio sector. And it seems to me it is apple in the computer sector . . .
The flaws are mainly compatibility issues, if you have expensive software that is supposed to run on mac and if you install it, it is heavily crippled you sure are not very enthusiastic