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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The0ne - Thursday, April 15, 2010 - link
Wait, huh? I run Win7 and have XP and redhat and ubuntu running. Why can't he do the same? I'm totally confused. So it's meant to be MacOS only?jasperjones - Thursday, April 15, 2010 - link
I said primary OS, not "only" or "exclusive" OS. It's well-known, for example, that MBPs has some issues on Windows that they don't have on OS X. My point is if you don't plan on running OS X most of the time, get something different.Anand wrote:
"You're paying for the design, build quality and ultimately the right to use OS X. If those things don't matter to you (particularly the OS X item) then you'd be much better off with an ASUS or Dell."
I would assume he made that comment in similar spirit.
mikeev - Thursday, April 15, 2010 - link
What's wrong with at least him testing Win7 battery life and letting us know? Is it some sort of secret? We know it's going to be bad- we just want to know how bad.I swear, fanboys sometimes... *facepalm*
Anand Lal Shimpi - Friday, April 16, 2010 - link
If I get the time to I'll run some Windows 7 numbers on it for you guys :)Take care,
Anand
mikeev - Friday, April 16, 2010 - link
Thanks Anand!!Jimbo - Thursday, April 15, 2010 - link
Why not just get your own Intel 80GB SSD and call it a day?I think that 15" I5 with an SSD would would be about as much speed as anyone could reasonably want from a notebook these days.
damianrobertjones - Thursday, April 15, 2010 - link
Has Anand every reviewed or posted about the HP Envy? Just asking as I'd hate this all to be about applePhynaz - Thursday, April 15, 2010 - link
You would hate a Mac article to be just about Apple?Yeah, that makes sense.
sportherz - Thursday, April 15, 2010 - link
Thanks alot for the great update! However, I was wondering if you have any information on the new 13inch MacBookPro. I was looking to upgrade from an older ThinkPad T61p to the new 13 inch MacBookPro, mainly because I hate the time it takes my ThinkPad to wake (running it in Windows 7, using a Vertex SSD) and more importantly the battery life. Due to having to fly often I was also not happy with a 15inch notebook and thus I was eyeballing the 13inch. It would be great if you could post some benchmarking on the 13inch graphics card. It seems that from general performance alone there is really no need to go to the arandale (4% increase in speed seems marginal), is that true? Thus would you second Steve Job's saying that the more important upgrade was the graphic chip?Any additional info would be greatly appreciated!
Thanks for doing such an excellent job!
fsardis - Thursday, April 15, 2010 - link
do the edges still cut through your wrists as you type?does it still get too hot to touch when doing any sort of intensive task?
does the screen still tip over the moment you tilt the laptop forward in your lap?
i wonder why i never see these obvious design flaws mentioned.