Performance

Raw CPU performance of the Zenbook's UX21 is obviously within the realm of the 11-inch MacBook Air, however its SSD really pushes it ahead of the MacBook Air in a lot of the PCMark 7 tests. PCMark tends to emphasize the benefits of an SSD but it really does illustrate just how much of a difference an SSD can make. A lot of the faster systems we've reviewed with mechanical drives simply feel slower than the Zenbook as a result of the latter having an extremely capable SSD. If there's any impact that Ultrabooks have on the market I hope it's the more widespread use of SSDs by OEMs.

Gaming performance is not a strong suit of the Zenbook UX21. Pretty much anything with a half-way decent discrete GPU is going to put this thing to shame. While you can play some games on the Zenbook, if you're planning on doing any real gaming with your notebook you probably don't want an Ultrabook.

PCMark 7—PCMarks

PCMark 7—Lightweight

PCMark 7—Productivity

PCMark 7—Creativity

PCMark 7—Entertainment

PCMark 7—Computation

PCMark 7—Storage

Cinebench R11.5—Multi-Threaded Benchmark

x264 HD Benchmark—First Pass

x264 HD Benchmark—Second Pass

Metro 2033

Boot and Resume Time

ASUS did a lot of BIOS optimization work to make the UX21 boot as quickly as possible. In its default configuration you don't see a POST screen; instead you get a quick flash of the ASUS logo before immediately being dumped into the Windows 7 startup sequence. The whole process from power off to desktop takes 16.7 seconds, which is actually marginally little quicker than a MacBook Air from off to OS X (17.2 seconds).

Resume time is even more impressive. By default the UX21 goes into a suspend-to-RAM state when you shut the lid. Resuming from this state takes just a hair over 2 seconds (I measured anywhere from 2.04—2.22 seconds)—it's quick. The WiFi usually takes a couple more seconds to become active beyond that, and Windows doesn't remember your previous brightness setting just whatever setting the active power plan was set to upon resume. Other than those two hiccups, the experience is just awesome.

Integrated VGA Camera & Network Performance Battery Life
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  • losonn - Sunday, October 30, 2011 - link

    Any chance the UX31's 900p display is better? Any chance of reviewing the UX31 is the future?
  • losonn - Sunday, October 30, 2011 - link

    Any chance of an UX31 review? Is the screen on the larger model any better / worse than the UX21?
  • cab2012 - Thursday, November 3, 2011 - link

    As a designer this is getting increasing more pathetic. There are many configurations and designs that can be produced without stealing other designs from a competitor who product is widely known for its industrial design. I know there is a lot of copycats, but seriously copying the style of famous Apple transformer?
    Oh wait it is different, its BLACK. The whole thing looks like a MBA only thunderbolt-less, and crappier graphics. Who do they think they are fooling. Only the dumb customers stupid enough to buy one of these and IT does not even have a magsafe power adapter? Who in their right mind would buy a laptop without a magsafe adapter. As someone who has an owned a laptop that was yanked off a countertop by a running dog caught up in the power cord, I would find impossible to believe that a computer laptop company would make a laptop without a magsafe adapter. Absolutely idiotic.

    "While I can't quite pinpoint ASUS' source of inspiration for the Zenbook UX21's 45W power brick design, the end product looks great. Cable management is handled via a standard velcro strap and the power connector itself has an LED on it that glows orange when charging or green when fully charged. "
    seriously really? blatant copying. you mean just like the connector on all mac laptops for how many years now, 6-7? Only not magsafe.

    "Unfortunately It also glows green when it's not connected, which can cause confusion if you plug it in but don't push the connector in all the way. Is it fully charged or just not fully connected? Guessing is half the fun!" copycats and half-assed copycats at that. IF you going to steal others ideas, because your designers are pathetic then at least have good engineers to make the product work, but I guess that is TOO much to ask from thieves.
  • netmann - Sunday, November 6, 2011 - link

    Asus Zenbook UX31E-DH52 with 128 GB Adata SSD and Intel i7-2677M CPU is available in UK but not in US!!! Does anyone know the reason?

    Also the Asus Global site has Windows 7 Pro as one of Operating System choices, but not for US!
  • ianken - Thursday, November 10, 2011 - link

    ...I'm hitting it. Asus test lab failtrain now boarding on RMA track to newegg.

    RAGE.
  • reebsauce - Sunday, November 13, 2011 - link

    Does anyone know if the processor/GPU can handle HD video editing without issues? For example, I use Sony Vegas on my desktop (Core i7 860 2.8GHz, ATI Radeon HD 5700) and I'm wondering if I'll be able to do the same with the Zenbook... if so, will I be able to perform other tasks while videos are processing (like browsing the Web)?
  • KrisB - Tuesday, January 24, 2012 - link

    Does the Zenbook have the capability to close the cover and not power off when an external monitor is connected?
  • Mateusz - Sunday, April 8, 2012 - link

    To begin with you pay more than 1100 euro for this laptop

    1) After 4 weeks of using the power socket breaks... laptop is shutting down randomly, due to problems with socket, and battery is not charging. I have to turn around the plug and play with it, to be able to use laptop
    2) I tried to return it to shop, no its not possible to return it to shop after 6 weeks, but they can replace it, by sending it to Asus, it will take approximately 1 month because there is no real service in Netherlands, and they have to send it to France.
    3) Website is sometimes down, and they don't answer phone calls
    4) They don't give a fuck about Linux users, answer from service is "We don't support Linux platforms" in other words "Go fuck yourself, you already paid loser".
    5) Its hard to open it, it gets dirty very easy, and LCD panel is moving too loosely, and its overheating (i7). I could probably add that auto-updating tool from Asus is crashing on Windows, and some of their software runs MS-DOS command line on startup...

    So currently, since its may daily working tool, I cannot afford to be without laptop for 1 month, I am waiting till it'll break totally, and than maybe I will donate it to some homeless people.
  • MikeWoods - Monday, October 29, 2012 - link

    I purchased 3 (2 for sales staff) Asus Zenbook first generation UX21E notebooks (1 I7 and 2 I5s) and have been very dissatisfied with all three. The keyboard problems are incredibly troublesome. It is difficult to type anything without missing letters or having the curser jump to other locations while typing.

    Would I buy again? I don't think so. Asus would have to replace all three laptops for me to ever consider buying Asus again. I do have an office full of desktop computers, all with ASUS motherboards and have been happy with the desktops.

    To ASUS: if you would like to make good on these computers, you can contact me on any phone number you find at the bottom of http://www.mswoods.com.

    Or, contact me by mail
    Mike Woods
    msWoods Real Estate, LLC
    4111 Wythe Ln
    Indianapolis, IN 46250

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