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
Power Consumption & Thermals
I dug up my old power draw and thermal numbers from the 2011 MacBook Air review, retested the old models to ensure they still performed as expected, and added the 2012 models to the list.
First up is power consumption. Here we're measuring total system power consumption with the display running at max brightness and the battery fully charged. We are forced to use a different power adapter for the 2012 MacBook Airs so there may be some variance here but the power rating remains the same.
Cinebench shows a real reduction in power consumption under load. This is exactly what we expect to see from Ivy Bridge, which should translate into better battery life numbers.
The power savings are basically non-existant under HL2ep2, but you have to keep in mind that the HD 4000 is able to deliver over 70% better performance at roughly the same power level as the HD 3000.
Surface temperatures haven't changed all that much, at idle the 11-inch system measured a bit cooler than its predecessor while the 13 was within a degree.
Under load these things can get hot - despite the power savings it looks like the base of the chassis gets roughly as warm as it did last year. There's only so much you can do with a tiny chassis and a single fan. Note that during my Diablo III benchmarking pass I measured 45C just north of the F2 key on the keyboard on the 13-inch MBA.
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phillyry - Tuesday, March 26, 2013 - link
Windows 8 is meant to be an OS for all. A hybrid OS, if you will.RT is not meant to be solely compared to iOS and Android, that's where Windows Phone 8 comes in. Hence, the name 'Phone' ascribing it to mobile (smartphones).
The whole point of Windows 8 is to blur the lines between laptop and desktop and tablet. Microsoft sees an opportunity to capitalise on a market by creating a new way of computing. The lines between RT and Pro are meant to be blurred. That's the point. That's where all these class defining devices like the Transformer line or the Lenovo IdeaPad Yoga come in. Microsoft wants you to rethink the PC in the 'post-PC' era. They want you to blend you laptop/desktop into your tablet. Or, better yet, buy a Surface.
Spunjji - Tuesday, July 17, 2012 - link
"Unlike other OEMs"This statement qualifies you as a troll. Good day, sir!
Romberry - Tuesday, July 17, 2012 - link
Bootcamp for running Windows results in a host of issues. (I can't speak to whether these same issues apply to Linux, but I expect they do.) Example: Battery life will decline by 20-40 percent.The issues aren't related to other OS's like Windows and Linux, they're related directly to Apple's implementation of..well...I'll let a commenter at Ed Bott's place spell it out: "they use an unoptimized BIOS software emulation for non-OS X operating systems, and as such, the drivers don't take advantage of a lot of PC standards like AHCI or full-speed PCI-e in anything except their own OS. The PnPID's that they use don't match generic hardware using the same vendor's chips so you need to get almost all drivers direct from Apple and they don't update them enough to make it worthwhile running Windows on their machines."
KPOM - Tuesday, July 17, 2012 - link
The current Boot Camp drivers enable AHCI.That said, If I'm an Apple customer, chances are pretty good I'd rather have them spend their time supporting OS X than Windows.
ananduser - Tuesday, July 17, 2012 - link
Apple's AHCI drivers are generic. Among laptop computers these drivers are very model specific, to the extreme; even between a single OEM's lineup these drivers differ. This is why bootcamp delivers battery penalties.KPOM - Tuesday, July 17, 2012 - link
I didn't say Apple's drivers were optimized for Windows. I said that they enable ACHI. They are getting better, but they don't optimize all their drivers. There is nothing stopping the individual device manufacturers themselves from writing new drivers, but I'm guessing they have little incentive to do so, as well.Microsoft yesterday announced a brand new version of Office. However, they didn't announce a Mac version, instead offering a quick fix to make the current Mac version work with their cloud product. Office 2008 didn't even support VBA. They make Office for Mac available but don't optimize it for OS X. I don't blame them, since the Mac isn't a big market for them. Similarly, few people who buy Macs intend for them to be primarily Windows PCs. Apple adds Windows support to provide basic support for people who need to use Windows sometimes.
tuxRoller - Tuesday, July 17, 2012 - link
It can run Linux, just not always terribly easily. I even wonder if it gimps windows a bit.You see, I really wish another manufacturer would look at Apple and realize they can do the same thing (purely in terms of hardware). Nothing particularly innovative, and always just about the most conservative design one can imagine. However, they actually put together a good product (again, purely from a hardware perspective) that no one else seems to be able to match.
Superb build quality, nicely spec'd internals, good screens, great battery life, good touchpad, decent keyboard, and the prices are quite reasonable. To anyone who doubts the later, here's a challenge: find a laptop that is as good as this Air (I haven't been able to find one yet at any price, but maybe there are some niche companies I'm not aware of). The one's that come closest, IMHO, are the lenovo X220/230, but while they have technically better screens (being ips), they are pretty low res. The HP Elitebooks offer some amazing screens but not so much battery life, price, or keyboard (IMHO).
Anyways, despite making superb laptops, I will not purchase any Apple product. So, I am still waiting for an oem to realize that there is a market for really well made pcs, but they can't forget ANY of the formula above (Asus, I'm looking at you with your bleeding screens, and average battery life and ssd).
Please Mister OEM-Man, let me give you my money:)
MobiusStrip - Wednesday, July 18, 2012 - link
First to be derided as a dumbshit?abrowne1993 - Monday, July 16, 2012 - link
I know you did a prerelease review for the UX21A, but it'd be nice to have a full review of the shipping 13 inch model, especially since comparisons could be drawn to the new MBA now. I liked that the screens were compared in this review.Anand Lal Shimpi - Monday, July 16, 2012 - link
I'm working on the UX32 now, Jarred will be doing the final UX31A :)Take care,
Anand