Microsoft Surface Pro Review
by Anand Lal Shimpi on February 5, 2013 9:00 PM ESTBattery Life: The Downside
Despite having an integrated 42 Wh battery (similar in size to the 3rd and 4th gen iPads with Retina Display), battery life is a real sore spot for Surface Pro. Haswell is really designed to drive platform power down to very low levels, which should help close the gap between ARM/Atom based tablets and Core based tablets. Unfortunately, Haswell for tablets won’t hit until the third quarter of this year, which forced Microsoft to use Ivy Bridge.
In our tablet benchmarks, I never saw Surface Pro break the 6 hour mark on a single charge. In most cases I’d expect to see 5 - 6 hours out of Surface Pro in light, tablet usage. Video playback was especially disappointing as Surface Pro managed to use more power here than during our web browsing battery life test. I suspect this might have to do with the relative power efficiency of Ivy Bridge's video decoder. It'll be interesting to see how Haswell does in this department.
I also put Surface Pro through some of our new notebook battery life tests for 2013, and here it didn’t fare too bad. I only have Acer’s 13-inch S7 to compare to but Microsoft managed 3.85 hours in our medium workload compared to sub-3 hours for the larger Ultrabook:
| Windows 8 Notebook Battery Tests | ||
| Battery Test | Acer Aspire S7 (13-inch) | Microsoft Surface Pro |
| AnandTech 2013 Light | 4.00 hours | 5.2 hours |
| AnandTech 2013 Medium | 2.88 hours | 3.85 hours |
This is easily the biggest disappointment with Surface Pro. You just won’t get the all day battery life you do with an ARM based tablet out of this design. I expect Microsoft will have a solution to this problem with Haswell, but not until the end of the year.
Charging
Surface Pro retains the same large, magnetic power connector as Surface RT. In fact, Surface RT’s power adapter will still charge Surface Pro. The Pro model does however come with its own 48W adapter. It’s a nice looking, but large and still fairly traditional two piece power supply (brick + detachable wall cable). There’s no sophisticated cable management other than a tiny hook to help keep the device end of the cable together. One neat feature is the power adapter does feature an integrated USB port for charging your smartphone.
Under max charging load the power supply will draw around 27W at the wall. Microsoft included a 48W unit in order to be able to charge and power the device without slowing down charge time. It took me 2.692 hours to charge Surface Pro from completely empty to 100% with no additional power draw at the wall. The quick charge time is pretty nice and about the only reprieve here when talking about Surface Pro's battery.
I did notice something odd with the first power supply Microsoft sent me. When charging through my power meter, I picked up some interference in the capacitive touch screen itself resulting in around 10% of my taps not being recognized. Microsoft supplied another power supply that seemed to resolve the issue.
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BSMonitor - Wednesday, February 6, 2013 - link
Because most people who are hardware reviewers see red flags only.. $899.. And the rest of the review is based on that..Surface Pro is the MOST productive tablet available. BY FAR. Why? because it's a PC in tablet form.
BSMonitor - Wednesday, February 6, 2013 - link
Has there been any talk/musings about a hybrid APU featuring both an Atom and the traditional Ivy Bridge/Haswell cores on a single die??I believe your last podcast mentioned the Octus or Octal or whatever in the ARM space. Seems like for a powerful, but mobile Surface Pro, this is a no brainer. If I want to switch to battery life mode and get 9-10 hours, Win 8 can be made to only schedule on the Atoms and power gate off Haswell.
Or does Intel really believe they can get Haswell and beyond into the power space of Atom/ARM??
dcianf - Wednesday, February 6, 2013 - link
The review said that in power saver mode it runs at 800MHz. Can you force the low clock rate? If so, how would performance and battery life compare to ARM?Netscorer - Wednesday, February 6, 2013 - link
That's actually a good point. Anand delivered performance charts based on fully powered core i5 and battery results based on clocked chip at 800MHz. Many people don't realize that you don't get both (and review does not help to highlight that difference) - either you are using it in light mode for stated hours or you run some complex program and have to be always connected because CPU would seep power like a thirsty kid on hot afternoon.marco89nish - Wednesday, February 6, 2013 - link
I also want to see how much battery life you can get on power saving mode. Peformance would also be nice, but it's predictable I guess, So, please, battery life on power saving mode. I registered to post this comment.smartypnt4 - Wednesday, February 6, 2013 - link
Anand, are you guys planning on reviewing the ASUS TAICHI21? The base model is $1300, which is only $170 more than the Surface Pro with a Type Cover, and it solves the lap usage problem while maintaining mostly the same battery life. I'll grant that it's a bit heavier, but I've got one and I absolutely love it. Those screens are just stunning.Beenthere - Wednesday, February 6, 2013 - link
That was just another scam by InHell.twotwotwo - Wednesday, February 6, 2013 - link
The Pro seems, in this and other reviews, to always get the unfavorable comparison on each dimension--it's not a thinner, lighter thin-and-light, it's either a heavy, bulky iPad or a bit slow for the most advanced games, depending on context.Microsoft seems to be betting that some folks can live with tradeoffs to get a super portable fully-functional computer. I really hope they're right; I'd like my next computer to be like this, and I'll have more options if this (or something like the Acer W700--I'd happily lose the pen and apparently unreliable covers) does well.
scsi stud - Wednesday, February 6, 2013 - link
Hi Anand,Would yod mind posting up a screenshot of the Surface Pro's desktop in full 1080p resolution? I'm curious to see how an application like Visual Studio 2012 would look like.
My hopes for this device were to be my go-to device for sitting on my couch writing code after I put my kids to sleep...
Thanks in advance.
spencer.p - Wednesday, February 6, 2013 - link
I am curious, Anand, if you can test to see if the Surface Pro works with the widi standard that Intel is pushing out and if it's also possible to get the Surface Pro to a 30" dual-link DVI monitor via one of those mini-displayport to dual-link DVI adapters. I am really curious if the Surface Pro will be able to meet my use case.