Apple's 2010 MacBook Air (11 & 13 inch) Thoroughly Reviewed
by Anand Lal Shimpi on October 26, 2010 10:08 PM EST- Posted in
- Mac
- Apple
- MacBook Air
- Laptops
The Battery Life
Light Web Browsing
Here we're simply listing to MP3s in iTunes on repeat while browsing through a series of webpages with no flash on them. Each page forwards on to the next in the series after 20 seconds.
The display is kept at 50% brightness, all screen savers are disabled, but the hard drive is allowed to go to sleep if there's no disk activity. The wireless connection is enabled and connected to a local access point less than 20 feet away. This test represents the longest battery life you can achieve on the platform while doing minimal work. The results here are comparable to what you'd see typing a document in TextEdit or reading documents.
As glorified typewriters, you can’t beat the battery life offered by the MacBook Air. Light web browsing, document creation and music playback have minimal impact on the Air’s battery life. In fact, we actually beat Apple’s battery life claims in our light tests. The 11-inch Air delivers nearly 7 hours on a single charge and the 13-inch managed 11.2 hours. For a writer, you can’t do better than this.
Flash Web Browsing
The test here has three Safari windows open, each browsing a set of web pages with between 1 - 4 animated flash ads per page, at the same time. Each page forwards onto the next after about 20 seconds.
As always, the display is set to 50% brightness, audio at two bars, screensaver disabled and the hard drive is allowed to go to sleep if idle. The wireless connection is enabled and connected to a local access point less than 20 feet away.
If you use the MacBook Air as a full function P...err Mac, the battery life drops steadily. In our Flash web browsing test battery life dropped to 4 - 5 hours depending on which Air you’re looking at. And the difference between the two isn’t all that great. The 13-inch only managed an extra 30 minutes of battery life.
Multitasking Battery Life
Our final battery life test is the worst case scenario. In this test we have three open Safari windows, each browsing a set of web pages with between 1 - 4 flash ads per page, at the same time. We're also playing an XviD video in a window all while downloading files from a server at 500KB/s.
Our heavy multitasking test is the biggest issue. Neither MacBook Air was able to deliver more than 3 hours of battery life on a single charge. The problem here isn’t just battery capacity but also the performance of the CPUs themselves. A major component of long lasting mobile battery life is a concept known as rush to idle.
Let’s say we have two CPUs. The first is an ultra low power CPU that only consumes 10W under load, but 0.5W at idle. The second is a high performance CPU that consumes 40W under load and 1W at idle. If it takes the first CPU 5ms to decode a frame of video at 10W but the second CPU can do it in 1ms, the total energy consumed over 33ms is is 0.064J for the first CPU and only 0.036J for the second CPU.
The longer the first CPU is idle, the more its typical and idle power advantages will come into play (hence the results in the light web browsing test). The more CPU bound the workload however, the more the advantage over the second more high performance CPU will disappear. Our heavy downloading/multitasking test is the most CPU bound of all of our battery life tests and the workload is consistent regardless of how fast you execute it. In other words, a faster CPU won’t be able to do more work, it’ll just be able to rush to idle quicker.
The battery life story boils down to your usage model, even more so than with the MacBook Pro. Light users are going to get wonderful battery life out of the new MacBook Air, particularly the 13-inch model. However, if you are the type of user who does a lot of multitasking or if you’re running particularly CPU intensive apps (e.g. Photoshop, iMovie, etc...) then these two notebooks will hardly last you. I suspect this is the distinction Apple is looking to make. If you’re a regular user, just playing around on Gmail and browsing the web then the MacBook Air is all you’ll need. If you are doing any work with your machine however, you’ll want to look towards the MacBook Pro.
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bigboxes - Wednesday, October 27, 2010 - link
Get it through your thick skull, an Apple is not a Ferrari. It's just another pc. An overpriced pc. As soon as you come to that realization you'll sleep better at night and save your $$.MeesterNid - Wednesday, October 27, 2010 - link
Errr...it sure seems like your skull is much thicker there buddy as he just gave you solid, logical reasoning and all you did was post incoherent blabbering about how Apple is not a Ferrari. You should try searching Google for the meaning of a "metaphor" there.But alas, I fear logic and reason do not fit into your "reality" filtered through, what's probably baseless, anti-Apple bias.
Good day.
bigboxes - Wednesday, October 27, 2010 - link
I know what a metaphor is. Do you really think I thought that an Apple PC is a car with four wheels that you can transport you from point A to point B using an internal combustion engine? Really?So, since you need clarifying... *sing along with me*... an Apple Computer is just another PC... an overpriced PC. A pretty PC with no cutting edge technology, but still more expensive nonetheless. No anti-Apple bias on my part because I point out the obvious. And no, Apple is not a BMW either (another metaphor in case you think I am mistaking a PC for an automobile).
synaesthetic - Wednesday, October 27, 2010 - link
Apple is more like a Lexus.A more expensive and shinier rebranded Toyota--err, PC.
=)
JVC8bal - Wednesday, October 27, 2010 - link
A Lexus is nothing like a base Toyota. They use separate unibodies, engines, etc. and only share little things like cabling and mirrors - as do all car brands and their platform strategies. Let's not forget the extra engineering that goes into quality or a quiet ride.You obviously have not owned a Lexus or are intimately familiar with - and judging from your witt, never will.
michael2k - Wednesday, October 27, 2010 - link
A Mac is nothing like a base PC. They use separate cases, batteries, motherboards, etc. and share only little things like connectors and ports - as do all PC brands and their platform strategies. Let's not forget the extra engineering that goes into quality or superior battery life.You obviously have not owned a Mac or are intimately familiar with - and judging from your wit, never will.
UltimateTruth - Monday, November 1, 2010 - link
"A Lexus is nothing like a base Toyota. They use separate unibodies, engines, etc. and only share little things like cabling and mirrors "I'm sure he's not talking about base Toyotas. And yes, models do share MANY common components from little things like hose clamps, electrical connectors up to engines and transmissions in their platforms.
The DI V8 in the bloated 350 IF-S is the same as used in the home market Toyota Crown. Variants are used in Tundras and Sequoias.
Toyota and it's subsidiaries makes the components. Lexus is just an upscale brand of Toyota Motor Co..
MeesterNid - Wednesday, October 27, 2010 - link
Brother, your ability to carry on a coherent, rational debate with adults needs practice. Allow me to illustrate:1. While my assertion that you do not understand the meaning of the word metaphor was clearly sarcastic you proceed to define it in your response making it look like you either really didn't know what it meant or felt insecure enough to have to prove your knowledge.
2. You, once again, spout unsubstantiated nonsense about Apple being "just another PC" while in fact Apple does a good bit of original design in their products unlike other PC OEMs (i.e. you should put forward, or at least attempt to, some reasoning that lead you to your conclusion).
3. Your statement that Apple is not a BMW is redundant to your previous one of it not being a Ferrari, but beyond that you bring that comparison up for no reason. That just makes your previously illogical ranting sound childish.
I'm not even going to attempt to debate your statement about your not being biased "because [you] point out the obvious" as I'm afraid reason may be lost on you.
bigboxes - Wednesday, October 27, 2010 - link
So, if I feel that Apple's products are underwhelming and overpriced then I must be biased. I see... :eyeroll:Use all the metaphors you want. Misinterpret my post for your selfish reasons that only you know.
It's still just a PC. I don't care what OS it uses. If you actually want to compare technical specs and features then we have a discussion. But that's not really what you want. You're off on some mission defending the honor of your beloved Apple. <i>It's Sir MeesterNid and his knights of the stupid table here to save your honor Miss! At your service.</i>
You know it's the same Intel cpu or did Apple do some design work there? It is thin like a cracker. Did you plan to use it as a frisbee? Make sure you buy the insurance.
tim851 - Wednesday, October 27, 2010 - link
And Ferrari is just another car. If you think there's $200k of engineering in there, your skull is thicker than mine. The main reason for the high price is that Ferrari positions themselves in a certain market segment. Price elasticity is given though, they would move more cars if they were cheaper. They just don't want to. Producing more cars creates new hassles and puts them in a different market position.Also, the primary benefit of a Ferrari - that is as a means of transportation - is rather bad, as they often seat only two people, have little luggage space, low MPG, frequent service intervals, high cost of operation.
The technical superiority - i.e. the performance - doesn't matter on public roads. A Ferrari won't get you anywhere quicker than a Ford.
People buy them because they are fun, they are pretty and they are representative. Buying a Ferrari is a more emotional act than buying an Apple.
And I, for one, don't own an Apple. I don't care about those secondary and tertiary values and prefer a cheaper PC. That doesn't mean that Apple's market strategy is wrong - it's just wrong for me. Their overwhelming success shows that it's right in general.