13-inch Retina MacBook Pro Review (Late 2012)
by Anand Lal Shimpi on November 13, 2012 2:53 AM ESTBattery Life
The 13-inch rMBP features an integrated 74Wh, non-user-serviceable lithium polymer battery. The smaller chassis forced the use of a smaller battery compared to the 95Wh part used in the 15-inch rMBP. With a 22% reduction in battery capacity, the question is whether or not the drop in power consumption will keep battery life balanced between the two systems. CPU TDPs also go down by an identical 22% (45W down to 35W), but the comparison is more complex than that. The 15-inch rMBP has an on-board discrete GPU that, when active, can significantly impact battery life. Without the dGPU inside the system, the 13-inch rMBP does potentially have an advantage.
To quantify battery life, I turned to our updated OS X battery life suite that I introduced earlier this year. As always we have three individual tests, each simulating a different amount of load. All battery life tests were run with the display calibrated to 200 nits. The test descriptions are below:
The light and medium suites are inherently related - they use the same workload and simply vary the aggressiveness of that workload. The light test hits four different websites every minute, pausing for nearly the entire time to simulate reading time. Flash is enabled and present on three of the sites. The long pause time between page loads is what really makes this a light test. Web browsing may be the medium for the test but if all you're doing is typing, watching Twitter update and maybe lazily doing some other content consumption this is a good representation of the battery life you'll see. It's a great way of estimating battery life if you're going to be using your notebook as a glorified typewriter (likely a conservative estimate for that usage model).
The medium test hits the same webpages (Flash and all) but far more aggressively. Here there's less than 10 seconds of reading time before going onto the next page. It sounds like a small change but the impact on battery life is tremendous.
Both the light and medium tests are run in their default state with processor graphics enabled, as well as with the discrete GPU forced on. I run with the dGPU on as well because it's far too often that a single application open in the background will fire up the dGPU and contribute to draining your battery. The goal here is to deliver useful numbers after all.
The final test is very similar to our old heavy multitasking battery life tests, but with some updates. Here I'm downloading large files at a constant 1MB/s from a dedicated server, while playing back a looped 1080p H.264 movie (the Skyfall trailer) all while running the medium battery life test. The end result is a workload that gives you a good idea of what a heavy multitasking usage model will do in terms of battery life. I've found that OS X tends to fire up the dGPU anyway while running this workload so I saw no reason to run a separate set of numbers for processor and discrete graphics.
Our light workload doesn't do much to stress all four cores in the 15-inch rMBP, so that machine effectively behaves like a 13-inch rMBP with a bigger battery. The larger display (more pixels, more power hungry backlight) does consume a bit more power but the 15-inch rMBP manages to last 11% longer on a single charge compared to the 13-inch model. Turn the dGPU on however and the 13-inch rMBP easily outlasts its bigger brother.
Compare the 13-inch rMBP to the 13-inch MacBook Air and you see exactly why the Air isn't getting a Retina Display anytime soon. With only a 50Wh battery, the MacBook Air manages 15% better battery life than the 74Wh 13-inch rMBP. The MBA uses a much lower powered CPU, but I don't know how responsible that is for the difference in battery life here given the very light workload. If I had to guess, I'd say the reason for the difference here is the display and backlight power consumption. What may be more likely than a MacBook Air with Retina Display is some sort of MBA/Retina iPad convergence into some sort of a new device down the road.
Ratchet up the workload and the two rMBPs look very similar in battery life, with the 13-inch model holding onto a 5% advantage. The 13-inch MacBook Air also loses its battery life advantage here as well. Once again if you turn on the dGPU, the 15-inch rMBP blows through its battery much quicker.
In our heavy test the 13-inch rMBP sets a new record for our new suite, outlasting the 13-inch MBA by 15% (despite having a 48% larger battery). Worst case battery life is much better on the smaller rMBP compared to the 15-inch model thanks to its use of a dual-core processor with no discrete GPU. Performance obviously suffers, but if all you care about is battery life the 13-inch rMBP will do better on a single charge.
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nerd1 - Tuesday, November 13, 2012 - link
I just cannot understand Apple's spec selection for this laptop.They are selling this as 'Pro' laptop, with fixed 8GB ram, 128GB starting storage space (and HUGE overcharge for slightly more useful 256GB) and no external graphics.
I don't think this is any better than recent full-HD ultrabooks from other brands, usually around $1000 price tag recently. 1080p is more than enough on 13" screen, and they provide cheaper storage upgrade option (256GB mSATA drives are now cheap around $200), and some even has external GPU. And face it - 2.5Ghz i5 won't give a huge performance edge over 1.8Ghz i7 ULV with turbo boost for most applications.
Yes, I know it will still sell like hotcakes.
lukarak - Wednesday, November 14, 2012 - link
That`s the only problem. Simply put, a dealbreaker, especially for mac users , that inherently have an above average need for virtual machines.Everything else is expected.
bji - Thursday, November 15, 2012 - link
Anand - the image retention flaw on the 15 inch rMBP is a real issue. I have written you several emails asking if you'd like to address this using your testing tools but never received a response. You haven't acknowledged this issue in this review either.Is the 13 inch rMBP subject to the same image retention flaw?
bji - Thursday, November 15, 2012 - link
WHOOPS - I am wrong. You did address this, I just didn't see that paragraph somehow.It would still be great if you used the tools at your disposal to analyze this. There are reports that the heat of the display (air conditioned versus warm room) have an impact, and of course it's well known that only LG displays suffer this issue. Having all of that confirmed by a reputable reviewer would be great.
edgarperez - Saturday, November 24, 2012 - link
I am trying to decide on a replacement for my 2gb mba 13" . The UI references including "Also if you're looking to minimize UI frame rate issues as much as possible you're going to want the upgraded CPU (although that still won't eliminate low UI frame rates)." truly scar me away from the rMBA. I am on my machine 12 hours a day regularly. the thought of the UI lagging scrolling on applications This is not something i noticed when i looked at the machine in the store but certainly something that would drive me batty once i have noticed it. I think I am going to have to think more about the MBA vs. the MBP non retina and pass on the retina for now.Zink - Wednesday, December 5, 2012 - link
It's not really lag, just low frame rates. It works just as fast as it should but looks a pit more choppy while moving.marioyohanes - Friday, December 7, 2012 - link
Well, I'm one of those people who always complaint about "Pro" in 13" MBP/rMBP, it should be named MacBook, without Pro because it is not a Pro machine. And maybe we could get lesser complaint on Mac App Store comment section for 3D games just because they thought 13" MBP can do 3D game.As for 13" rMBP, here my two cents after using this thing for a month (I got it for free anyway, so...):
- 8GB RAM is not an issue, period! You just trolling saying it needs 16GB! You just don't run 2 VM, 100megs AI files while running FCPX on this machine, you just don't do that.
- 128GB SSD for $1799 laptop? This is annoying! Seriously? 128GB? And yet you still calling it a Pro? I'll be damn!
- Display is awesome, super awesome, even though, I prefer to have 1440x900 resolution over native retina. The only thing I hate from 13" MB/MBP is the resolution barely usable for professional work. However, if you're iOS app developer or UI designer, this thing rocks! No more scrolling madness for testing app on retina simulator or designing retina artworks in Adobe!
- UI performance is not an issue, at all, some websites simply just another prove of bad programming. And retina aware apps are widely available, if they're not updating their app to be retina aware until first half 2013, it means the app is either no longer under development or its developer simply not serious selling Mac apps.
- Gaming or anything 3D? Forget about it. Unless of course, by gaming you meant Angry Birds, but for me, gaming is stands for Steam, AC3, Diablo 3 and the list goes on.
So who is this for? Professional who does a lot of work developing or designing retina UI but hates 15" rMBP portability. Or, it could be great for business professional, you'll be thank to its retina display for saving your eyes for working too long in front of your computer.
This is not for me, obviously, I switched back to my 15" rMBP after a month. This is well overpriced on my opinion, but then again, no competition whatsoever. And yes, please stop telling me ultrabooks $1000 etc, the closest ultrabook price with this thing is cost more than $1400! But then again, if you're making money with your laptop, why bother with price, as long as its beneficial for you to have this rMBP (also works for boosting confidence), just buy it and don't look back. Haters will be haters, don't listen to them.
.Chris. - Tuesday, December 11, 2012 - link
Grate in-depth review wish I found this 2 weeks agoI bought a maxed out air then sent it back after seeing the retina display in store.
Since then I’ve been trying to decide if the upgrade to the faster cpu is worth it for the rMBP. Sounds like it is and as I am paying education prices which brings it in at £1383 (which still hurts but not as much as £1609)
AirieFenix - Monday, March 25, 2013 - link
I would love to see a 13-inch "non-Retina" Macbook Pro with some of the goodies of the rMBP. For instance, I need the Ethernet port (yes, there is an adapter, but I'd rather prefer o have it out-of-the-box); I also like the battery life on the non-Retina model, and to have upgradable hardware is almost a must-have for people that don't buy a new notebook every year (for instance, me).In the other hand, I don't use the DVD drive on my computers since... I don't even remember. And the 1280x800 is a low resolution right now.
But most important, I'd rather prefer to have a consistent fluidity through all the UI than more than a lot of pixels (yes, it's a nice display, but I'm not a photographer, it isn't a must-have to me) and the price. The price of the Retina model is just too absurd.
Why don't make a 13-inch Macbook Pro with Air's display (a not Retina, but still good) and without DVD-tray (although I can live with it, would be nice to have more space for battery life)? That would be my dream machine.