The new Asux Zenbook UX31A ultrabook looks like the old Asus Zenbook UX31E, with a brushed, bronze-tinted, solid aluminum shell that looks slightly dangerous and angular. The weight remains the same, at 1.3kg. But our test model arrived with a gorgeous, 1080p IPS (in-plane switching) display and an Ivy Bridge processor, boosting both performance and display quality. Price is about £1,499. See also: Group test: what's the best ultrabook laptop?
Asus Zenbook Prime UX31A: Points of Improvement
In addition to updating its UX31 Zenbook line with Ivy Bridge CPUs, Asus is trying to bring consistency to its touchpad pointing experience. Our review of the earlier Zenbook UX31E was mostly favourable, but we found that the touchpad wasn't optimal. One issue that the company itself noted was that it sourced touchpads from two different vendors, and it was a lottery as to which one you'd get when you bought a Zenbook.
The Asus Zenbook Prime UX31A rectifies that, using the same brand and model of touchpad in all systems. Drivers have been tuned a bit as well, and the overall touchpad experience is better. Palm detection has improved, though the cursor still has a slight tendency to overshoot when you use your finger to move it. Multitouch gestures and tap-to-click no longer have excessive lag, either.
You can still get the Asus Zenbook Prime UX31A with a 1600 by 900 pixel display, but it's worth spending a few pounds more for the 1920 by 1080 pixel display, based on IPS technology. The one downside: all those pixels crammed into a 13.3-inch display may make you want to adjust the display's scaling for fonts to improve readability. The 1080p display includes an antiglare filter, a welcome standout in a sea of glossy, too-reflective panels.
Sound quality through the built-in speakers, codeveloped by Bang & Olufsen, is mostly accurate, though some acoustic classical material sounded a touch bright. As with most systems with tiny speakers, the Asus Zenbook Prime UX31A lacks any real bass content—you'll want external speakers or headphones if you're looking for more boom in your audio.
Asus Zenbook Prime UX31A: Performance
Our Asus Zenbook Prime UX31A review unit included the speedy Core i7-3517u CPU, supporting four software threads with two cores, and 4MB of L3 cache. As with most Ultrabooks, the system includes 4GB of RAM, some of which needs to be allocated to the integrated Intel HD 4000 graphics processor.
Overall performance is on a par with the similar Acer Aspire S5. The Acer still ekes out a higher Worldbench 7 score, posting a startlingly high 195, compared with the Zenbook's 150.
The Asus Zenbook Prime UX31A takes 20.1 seconds to start up from a cold boot, slightly slower than the average of 16.3 seconds for recently reviewed Ultrabooks, despite the built-in, 256GB solid-state drive. However, overall storage performance is excellent, outpacing all competitors.
As you might expect, gaming performance is limited, since the Zenbook relies on Intel's HD 4000 integrated GPU. It's an improvement over past Intel graphics efforts, but no replacement for a discrete graphics chip. With demanding games, you'll need to dial down the graphics settings for playable frame rates.
In the end, Asus essentially maintains performance parity with the similarly priced Acer Aspire S5, but includes a better display.
Battery life is an excellent 6 hours, 24 minutes, falling just short of Toshiba's larger U845W and outpacing the rest of the pack of recent Ultrabooks.
Asus Zenbook Prime UX31A: Ports and Connectivity
The Zenbook ships with two USB 3.0 ports, one on each side. This is only just acceptable, but the lack of additional USB ports is mitigated by built-in Bluetooth and an integrated SD card reader that supports the latest SDXC high-capacity cards. Other ports include a mini-VGA port and a micro HDMI connector for external display and projector connectivity, plus a combination microphone/headphone jack.
On the networking side, the Zenbook ships with the aforementioned Bluetooth (4.0) and dual-band 802.11n that even supports the older 802.11a standard, making the system suitable for corporate use. While it doesn't include a built-in ethernet connector, Asus thoughtfully includes a USB-to-ethernet adapter.
Asus Zenbook Prime UX31A: The User Experience
The improved touchpad is certainly welcome, if not perfect. It's a bit overly sensitive out of the box, but changing the settings has a marked impact, unlike the original Zenbook. Palm detection works well, so your hovering palm doesn't send the cursor flying across the Windows desktop to be lost in a sea of icons.
Asus doesn't include excessive bundleware, but it does load in Microsoft's Windows Live software suite plus some useful utilities. The LCD panel's colour balance can be tweaked using the Asus Splendid utility, but I'd suggest avoiding the “vivid” setting unless you like your colour saturation particularly garish.
The keyboard disappoints a bit. While it's fully backlit, the keys themselves are mostly flat, textureless, Chiclet-style keys. I found my fingers occasionally slipping off one key onto another while touch typing, and the tiny bumps on the F and J keys barely enough to help in finding the home row. All this is mitigated slightly by the physical size of the keys, which are suitably large.
The 1080p IPS panel offers excellent colour fidelity, though it's just a touch on the muted side. With a little calibration, the Asus could be a useful system for on-the-go photo editing. Video playback is excellent, with no stuttering or pauses. Viewing angles are superb, as you'd expect with an IPS monitor.
Storage is a little problematic. As with past Zenbooks, Asus partitions the speedy solid-state drive into two nearly equal-size partitions, one for the OS, and another for data. This means you're constantly juggling which drive to use. I would have much preferred having a single partition—256GB isn't a vast amount of space by today's standards, so splitting up the SSD in this fashion isn't very useful.
Read more: http://www.pcadvisor.co.uk/reviews/laptop/3359986/asus-zenbook-prime-ux31a-first-look/#ixzz2FaxVSMni
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