Battery Life

Getting detailed specifications for the Acer TimelineU M3 has been a little bit difficult; the notebook isn't on Acer's site yet (despite apparently having been released into the wild) and our reviewer's guide is a bit light on details. The box for it claims a meager 3-cell battery, but we're told it has a healthy 55Wh of capacity. That seems pretty dense, but as you'll see it's believable.

Unfortunately due to the crunch we don't yet have results for media playback, but those will be added as soon as humanly possible.

Battery Life - Idle

Battery Life - Internet

Relative Battery Life - Idle

Relative Battery Life - Internet

The TimelineU M3 absolutely rocks socks on the battery. NVIDIA's Optimus technology is in full effect here, and as a result the M3 is able to meet and beat the advertised eight hours of battery life that even the reviewer's guide for the M3 claims. This is one place where using the ULV i7-2637M does seem to pay major dividends compared to the full voltage chips.

Heat and Noise

Heat and noise are two more places where having that ULV chip seems to help the M3. While load noise isn't exactly ideal, it's only roughly 41dBA under load, and that's only when the GPU is being stressed. Meanwhile, no hot spots seem to develop on the top surface of the notebook. That said, top-center on the bottom of the M3 does get a bit warm; it's not uncomfortably hot and certainly won't scald you, but there's definitely a single sharp source of heat inside the M3.

Screen Quality

At the risk of digressing, when I used to write for NotebookReview I found myself trying to eschew talking about the speakers of the notebooks I reviewed whenever possible because the results were the same 99% of the time. That's remained true here; notebook speakers are typically only worth talking about when they're not terrible. The reason I bring this up is because I'm beginning to feel the same way when testing the notebook screens. It's obviously useful information, but this is a component that almost always underwhelms, and the same is true again with the Acer TimelineU M3.

While the 1366x768 resolution of today's mediocre TN panel is ideal for our bandwidth-constrained GPU, it doesn't require any feat of prestidigitation to say that the comments on this review will once again light up with well-founded complaints about a 15.6" screen running this resolution natively. Frankly it's just inadequate for a notebook this size, and we're going to keep harping about these subpar panels until manufacturers wise up and start getting it right.

LCD Analysis - Contrast

LCD Analysis - White

LCD Analysis - Black

LCD Analysis - Delta E

LCD Analysis - Color Gamut

You can see from our test results that it doesn't necessarily have to be this bad. While the M14x's screen is underwhelming in places, it also runs at a superior 1600x900 resolution. The Sony Vaio Z2 may be a premium notebook (or at least a premium-priced one), but you at least see where some of that purchase price is going: a fantastic, high-resolution screen.

Meanwhile, the Acer TimelineU M3 sports the industry-standard dismal TN panel with weak viewing angles, low contrast, and low color accuracy and quality. This needs to change, and there's really no reason to settle for a crappy display when you're putting in 256GB SSDs.

And let's be clear about the costs: when an end user can go out and purchase a replacement AU Optronics B156HW01 v4 display for under $100 (compared to around $60 for a typical 1366x768 panel), the cost savings can't be that much for the laptop makers. Granted, with ultrabooks the manufacturers are also looking to get the thinnest panels they can find (another misguided goal in my book: thinness while sacrificing keyboard and display quality just doesn't make sense), but there are still much better 15.6" displays out there that would only increase the BOM by $50 at most.

Gaming Performance Conclusion: A GeForce and an Acer Both So Close
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  • Kansja - Friday, March 16, 2012 - link

    I do agree 1600x900 are fine, but I can't get over a 700$ budget and I want to play games at least medium. HP + Llano + 7690 stays under that budget with 768, but doesn't have the option to 1600x900 other than 1080p and that would be too taxing, so it's unfair. It's a compromise: Want better displays on laptops? You need more power, thus, pay more, thus, lose markets. Most people won't notice a lot of difference unless you're a graphics junkie. You are niche users, not the mainstream market
  • Old_Fogie_Late_Bloomer - Friday, March 16, 2012 - link

    Actually, I really wouldn't care what resolution a game rendered at as long as it ends up looking okay in the end. Render in 960x600 and upscale to 1440x900, or in 1280x720 or 1200x675 and upscale to 1600x900. I don't care, it's fine with me, as long as the scaling is decent.

    But that's neither here nor there. I want a resolution with 900 rows for productivity reasons. Gaming is a secondary concern for me, but I will want to be able to fire up something more than classic Unreal Tournament or d1x-rebirth in my next laptop. Honestly, with Kepler and even Trinity nearly here, I suspect that GPU power is about to become a non-issue.

    I was really disappointed in the Samsung Series 7...I thought it would be my perfect laptop, but what I read about it left a bad taste in my mouth. So I'll be watching for a thin(ish) and light(ish) 15.6"(ish) laptop with a 1440x900 or 1600x900 (or thereabouts) matte screen that can game reasonably well, whether that's with a Trinity APU or with a i7-3xxx paired with Kepler. I think a system like this could probably hit around $700 with a Trinity APU.
  • Kansja - Saturday, March 17, 2012 - link

    Trinity: Yes. If Llano is any indicative and even a 10% increase of power on both sides on the same TDP, it could handle it pretty well. Otherwise, 640M seems disappointing to say the least... Let's see how Kepler scales tho, since this is the smallest part I guess.
  • Osamede - Thursday, March 15, 2012 - link

    A 15" laptop with a 1366 x 768 screen? Why would Anandtech even waste its time reviewing junk like this?

    No offense fellas, but I dont care if the company even PAID you to review this thing, you should say no, because it hurts your own brand as a tech media website, to review this dross.

    Next time you have a laptop review I cant tell you I aint clicking, because you seem likely to waste my time....
  • akyp - Monday, March 19, 2012 - link

    Stopped reading there
  • nissangtr786 - Wednesday, December 26, 2012 - link

    imo I have had a couple 1920x1200 dell latitude d820/e6500 and 1440x900 14inch screen on d630 and recently an e6420 14" 1600x900 screen. Now 16:9 is something I didn't want but it makes watching movies better. Also as bad as 1366x768 is, it is liveable. 640m and 720p gaming will go very well.

    I currently use an acer 5930g and I am on the process to upgrade to an i5 3317u m3 640m machine. Seeing this review it shows that is good enough and good as a cheap replacement for use for next 2-4 years.

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