Group test: seven Ultrabooks compared and rated

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Group test: seven Ultrabooks compared and rated

Ultrabooks have breathed life back into the PC. In this feature group test, we review seven of the ultra-thin laptops.

The Ultrabook is Intel’s vision for the future of mobile computing. Lightweight and long-lasting, yet also powerful and feature-packed, this new breed of laptop is one part ultraportable, one part desktop replacement, and 100% desirable.

Earning a place in this elite category is no mean feat. Manufacturers are expected to squeeze powerful (Intel) processors, SSDs and serious battery life into laptops that are less than 21mm thick. Not only that, but they have to do it to a budget: Intel’s desire to appeal to the mainstream means the first flush of Ultrabooks in Australia cost anything from $1055 right up to $2799.

So far, though, they all have one thing in common: they’re just a little bit gorgeous. Doing away with the optical drive and slicing the chassis to a mere sliver works wonders for a laptop’s appearance, and even the dowdiest Ultrabook looks rather svelte. One thing they’re not, however, is identical, so it’s worth taking a closer look before reaching for the credit card.

With Intel’s low-voltage Core processors at the heart of this new laptop breed, you might expect underwhelming performance. That, however, simply isn’t the case. The standard specification for an Ultrabook is a low-voltage Sandy Bridge Core i5 processor, 4GB memory and a 128GB SSD – a combination that makes for great all-round performance. Some manufacturers, such as Acer, have produced more affordable models with Core i3 processors and mechanical hard drives alongside smaller SSDs, and these are certainly worth considering if your budget is particularly tight.

<i>'Portability without compromise' is the unofficial catchcry of the Ultrabook format</i>
'Portability without compromise' is the unofficial catchcry of the Ultrabook format















Not all SSDs are created equal, however. The sequential read speed graphs on the next page show that some are much quicker than others. While a fast SSD won’t make your applications run faster, it will definitely help them load more quickly. And if you’re intent on working with huge video clips or music projects, the fastest SSDs here will make their presence felt.

All but one of the models here are based around a 13.3in chassis, so there’s plenty of room for a good-sized keyboard and comfy touchpad: anything less is simply unacceptable. Many of the forthcoming Ultrabooks have aped the glass touchpad of Apple’s MacBook Air and entirely done away with physical buttons.

In fact, the sole criticism of the current crop is that only one manages to squeeze in a high-resolution display. While we can understand manufacturers partnering 11.6in screens with 1366 x 768 pixel resolution panels (anything higher would result in uncomfortably tiny text), there’s no such excuse with larger models. Asus’ Zenbook UX31 bucks the trend by opting for a 1600 x 900 panel, and it’s all the better for it. We hope other manufacturers soon follow suit.

The final hurdle is one of connectivity. Most Ultrabooks squeeze in at least one USB 3 port – essential for high-speed data transfer – but full-sized video outputs and Ethernet sockets are at a premium, and several skimp by settling for single-band 802.11n wireless networking.

Pay close attention to the feature table opposite if you want the full lowdown for every model on test.


All seven laptops have undergone our suite of Real World Benchmarks, which measure each laptop’s all-round computing performance. We also run through three iterations of our Crysis tests, each at progressively tougher settings, to evaluate each laptop’s ability to play the latest games.


To give accurate battery life figures, we run two tests. In the light-use test, we optimise the system settings for the greatest power efficiency – Windows’ power profile is set to Power Saver mode, and screen brightness is set as close to 75cd/m2 as possible using an X-Rite i1Display 2 colorimeter. We then disconnect the mains and run a script that scrolls through a variety of web pages until the system shuts down.

For the heavy-use test, we change Windows’ power profile to High Performance and set the display brightness to maximum. We then disconnect the mains, setting Cinebench’s 3D renderer looping constantly until the battery is completely drained. With Cinebench 11.5 pushing every CPU core to 100%, this test provides a worst-case figure that you can expect under the most strenuous of conditions.


Each laptop is evaluated for the quality of its features, build quality and design. The range of connectivity is taken into account, including network capabilities and hard disk capacity, as well as features such as physical switches to disable wireless networking or temporarily disable touchpads while typing.

We test the quality of each laptop’s display with our colorimeter, measuring the brightness, contrast ratio and colour accuracy, and use a selection of test images and videos to look for issues such as poor viewing angles or slow response times.

For items that can’t be measured objectively, such as the build quality, speakers and keyboard, points are awarded by two members of the PC & Tech Authority team, and the results averaged.

Ultrabooks - Feature Table

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Our Real World Benchmarks show that there isn’t much to separate the seven Ultrabooks. Even the Core i7 models are only around 12% ahead of the Core i5’s.

This is why we’ve also chosen to test the speed of the SSD (or in Acer’s case, the mechanical hard disk) in each system to determine what kind of transfer speeds you can expect. Those speeds might not affect how fast applications run, but they will impact on how long they take to load, and make for a far snappier-feeling system.

As ever, battery life is a crucial part of a laptop’s performance. Our light-use battery test didn’t throw up any big surprises, but the heavy-use figures see some models faring much better than others. This is where the largest batteries and the most power-efficient designs show their worth.

The figures from our display testing were a disappointment. Both the Acer and Lenovo models look noticeably dim, and struggle to remain visible in sunlight. Contrast figures, however, were poor, with most struggling to reveal shadows in photos and movies. Only the Samsung exhibits a decent contrast ratio, and that’s undermined by its cold, bluish tone. But there’s more to image quality than brightness and contrast – this is why we pinpoint issues with colour accuracy in each review.

click to view full size image

click to view full size image
















We never expected any one manufacturer to nail the Ultrabook concept from day one – after all, even Apple’s MacBook Air needed several major redesigns and specification updates before it found the right formula – but we’re pleased to say that what we’ve seen so far shows immense promise.

Previously, few Windows laptops were capable of rivalling the MacBook Airs, yet, in only a few months, Intel’s concept has coaxed out a set of alluring, and often excellent, designs, many of which are more than lovely enough to tempt people away from the Apple Store.

Lenovo, for one, has never made such a pretty portable; Dell’s XPS 13 marks the pinnacle of design in a range that’s seen many great laptops over the years (remember the slightly bonkers Adamo XPS?); and Asus has outdone itself with its pair of Zenbooks. Acer’s Aspire S3 stuns in a different way – it’s not only rather pretty, but at $1055, it’s also surprisingly affordable.

There’s room for improvement. Apple calibrates every laptop display before it leaves the factory – a decision that makes the most of the LCD panels it employs. By comparison, not one Ultrabook manufacturer does the same, and every display here is markedly inferior. A display that’s simply okay isn’t good enough for an Ultrabook – it needs to be great.

The final weakness is one we hope Windows 8 will address: gesture control. Apple’s OS X and multitouch gestures are a match made in heaven: with every stroke and flick of a finger rewarded with a rapid and seamless response, it’s enough to make any Ultrabook feel clunky. If Intel, Microsoft and the manufacturers set their mind to it – and with touchscreen Ultrabooks slated for 2012, we’ve no doubt that they’re doing just that – the future of the Ultrabook will be secure. Apple will be nervously glancing over its shoulder.

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