Apple's 15-inch Core i5 MacBook Pro: The One to Get?
by Anand Lal Shimpi on April 14, 2010 10:38 PM EST- Posted in
- Mac
- MacBook Pro
- Arrandale
- Core i5
- Laptops
Even Better Battery Life
I've never had such a great balance of performance and battery life as my previous generation unibody MacBook Pro. Whatever Apple is doing under OS X to deliver great idle battery life really does pay off. If you're not constantly pegging the CPU, OS X can deliver some incredible battery life.
It does get better with Arrandale. Remember with the Core 2 processors you couldn't actually shut off the cores if they were idle, they'd still leak power. Thanks to Arrandale's power gating, if a core is idle, it can effectively be shut off completely. In other words, battery life in situations where there's lots of idle time (e.g. read web pages, writing) should improve.
To test this theory I ran our standard wireless web browsing test:
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 expected, the new MacBook Pro delivers a 10.5% increase in battery life. Not all of this is due to the more efficient CPU/GPU however. The 15-inch MacBook Pro has a larger battery than before (77.5Whr vs. 73Whr).
It's not all rosy though. The larger battery was used in part to make up for the fact that Arrandale, while more efficient at idle, can draw more power under load than Penryn. The Core i5 can be noticeably faster than last year's Core 2 Duo, but in allowing you to do more it can run the battery down quicker.
In our original Arrandale review we found that battery life can actually decrease with the new platform under certain conditions. Our heavy multitasking test shows the same can happen under OS X:
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 approximately 500KB/s.
It's not a large drop, only a couple of percent, not even noticeable. But you shouldn't expect battery life improvements across the board with the new MacBook Pro.
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Rod Hagen - Thursday, April 15, 2010 - link
It is much, much easier on all of the unibody models than on the pre-unibody ones from before October 2008 (assuming this is what you had previous experience of) .Pretty much a five to ten minute job at worst in terms of the hardware side of things.
Cheers
Rod
MadMan007 - Thursday, April 15, 2010 - link
So I read this and I thought 'OK, Anand is impressed with the battery life' so I figured 'Hey why not see how it compares to other laptops?' I had to go to other articles because this review only has Macs - fair enough for the Mac fanbois who won't consider anything else anyway but not for those who might be open-minded. But what did I find? Sadly Windows laptops run an entirely set of battery test suites. 'Completely idle' 'Flash web browsing' (I think the Macs get a big boost by having non-Flash browsing and that seems like a big fudge to me) and then '720p video playback.'To my surprise, looking at results, the Macbook batery life is NOT super overwhelmingly impressive. Most of the other laptops that have high(er) battery life have CULV CPUs, fair enough they aren't as fast as the MacBook but then they will run any of the 'battery test' suites just as well. The recent Lenovo is however a Core i5 and gets good battery life.
So Anand, please stop the shenanigans with Apple battery life hype and use tests that are actually the same (as much as possible -Safair might not be available on Windows for example) across platforms.
Anand Lal Shimpi - Thursday, April 15, 2010 - link
I addressed the Windows comparison in some earlier articles, the most recent of which is here:http://www.anandtech.com/show/2870/done-for-2009-t...
You'll also note that Jarred runs an idle battery test in all of our Windows reviews, that's the most comparable to the light web browsing test. Some of the recent entries we've tested have gotten a lot better but take the Lenovo ThinkPad T410 for example:
http://www.anandtech.com/show/2976/lenovo-thinkpad...
With a 94Whr battery it delivers less battery life idle at the Windows desktop than this 77.5Whr 15-inch MBP while running our light web browsing test.
The gap is closing but it's still there. The first link shows that the gap only really exists in light load scenarios where there's lots of idle time (e.g. reading, web browsing, writing).
Take care,
Anand
maler23 - Thursday, April 15, 2010 - link
@MadMan007Hey dude, show a little respect. I can understand wanting a little perspective but maybe rephrase your request...unless it's a rant, in which case, flame on, sir :)
How about this:
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Anand, once you get all three models tested, could you include some comparison battery tests that include Flash as it that is a reality for most webpages(including the comment page I'm typing out right now). In addition, I would love to see a display comparison. I often see this site grumbling about contrast and color range and such with other laptops(recent Asus models, for example) but I would love to see Macbooks thrown into the bunch for comparison.
=============
cheers!
-J
Anand Lal Shimpi - Thursday, April 15, 2010 - link
I should also add that I do have a video playback and flash web browsing test for the MBP, they simply didn't make the final cut for yesterday's review due to time constraints however I'll be adding in the data in the next day or so :)Take care,
Anand
sky7i - Thursday, April 15, 2010 - link
Hmm, I was all set to get one but now I'm worried about heat and noise issues. I absolutely detest sweaty palms and am very sensitive to machine noise, often preferring my Acer netbook to the Mac as the Acer is silent.My current machine is an original Core Duo 15" MacBook Pro. It also has two fans (one a bit wobbly) but temperature wise it's fine. Will the new 15" be warmer?
I was also contemplating the SSD 128gb option for an extra $280, for the silence and performance. Will this help it run cooler? Is there a better option in that price range? The Intel SSD seems wonderful but it's $500. Maybe I'll just try to find a single-platter 250gb drive instead.
Thanks for any input.
solarisking - Thursday, April 15, 2010 - link
I have a late 2006 MBP and every since I had a warranty claim on the power brick (it stopped lighting orange/green/off correctly) they sent me a new one which was smaller. I think I figured out over time that it *seemed* like the new brick charged my MBP slower than the old one. Without the old brick I was unable to confirm. As it stands now, it can take up to 4 hours to charge the damn battery, if not longer. And I have two batteries! So hopefully, the new brick has more DC current and charges more quickly. Given a larger battery capacity that's my guess, and warmer laps are the result. And BTW, my MBP can get pretty dang hot when being recharged.laela - Thursday, April 15, 2010 - link
How is the battery life under Windows 7? Thanks for a great review!mikeev - Thursday, April 15, 2010 - link
I too would like to know this. I am extremely curious as to how bad the Windows 7 battery life is with that GPU cranking away the whole time, since I play a lot of games.Also, do you have any guess as to if NVIDIA or some 3rd party (a passionate user?) might possibly create a Windows driver/utility that will allow switching between the IGP and GPU like in OSX?
jasperjones - Thursday, April 15, 2010 - link
I think it's completely reasonable that Anand doesn't provide results for battery life under Win 7. iyam, if you don't use OS X as your primary OS, you shouldn't get a Mac. It's as simple as that.