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High-end Laptops

Lenovo ThinkPad X1 Carbon review

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There's no shortage of ultrabooks that offer a 13.3-inch screen, but what if you want a 14-in display? Lenovo's ThinkPad X1 Carbon pushes the state of the art to create a notebook that provides a lot of mobile power per pound, but its price of around £1,349 makes it a bit more expensive than some of its rivals.

As its name implies, the X1 Carbon's case is made of lightweight carbon fibre, a material usually used in equipment where cost is not a consideration, like fighter jets and Formula One racing cars. It's the perfect material for a laptop, though, because it's as strong as aluminium while weighing one-third as much.

As a result, the 1.8kg X1 Carbon may be the lightest 14in ultrabook on the market. It not only matches the weight of the 13in Dell XPS 13, but is lighter than the 14in Fujitsu Lifebook U772.

However, although the system is light, its AC adapter is anything but. The X1 Carbon's power pack weighs nearly double the weight of the Lifebook U772's AC adapter.

The X1 Carbon measures 18mm thick in front (matching the Lifebook), but moves up at the rear, making for a distinctive wedge-shaped profile. Overall, the system measures 13in x 8.9in.

Inside is Intel's third-generation Core i5 3427U processor along with 4GB RAM and a 128GB solid state drive (SSD); Lenovo sells the same configuration with 8GB RAM for $1,599. A model with a slower Core i5 processor is available for $1,249, while if you want a Core i7 3667U processor with 4GB RAM and Windows 7 Professional instead of Windows 7 Home Premium, a model is available for $1,579.

This being Lenovo, of course, keep in mind that these four base configurations are tweakable. For example, you can increase storage capacity to 256GB for an additional $280, and upgrade from Windows 7 Home Premium to Windows 7 Professional for $50.

Above the screen is an HD webcam for everything from shooting mini-movies to videoconferencing. As with other ultrabooks, there's no room for a DVD drive. While the X1 Carbon doesn't have its own docking station (a few ultrabooks, such as the HP EliteBook Folio 9470m, do), Lenovo is planning to sell a universal docking station sometime this month for $179 that will have five USB 3.0 slots, a pair of DVI outputs for monitors.

A great display

The display uses in-plane switching (IPS) technology and is one of the brightest and richest screens I've seen. It shows 1600 x 900 resolution, a step up from the Lifebook's 1366 x 768 resolution. As with several other ThinkPads, the screen can be folded back so that the entire system is flat; this lets you stow it under a monitor stand with the keyboard sticking out.

The system comes with Intel's HD Graphics 4000 video engine. With 64MB of dedicated video memory, the X1 Carbon can also use up to 1.63GB of the X1 Carbon's system memory, providing access to nearly 1.7GB of video memory.

While the screen looks great, it might be a hassle connecting it on the road to a monitor or projector because the X1 Carbon has neither VGA nor HDMI ports. Instead, it relies exclusively on a Mini DisplayPort connection; Lenovo sells an adapter for VGA work.

Its other ports include one USB 2.0 and one USB 3.0 port, an audio jack and a flash card reader. Like many other ultrabooks, it requires a USB-based adapter to connect with a wired LAN; the dongle comes with the system. Along with Bluetooth 4.0 and 802.11n Wi-Fi, the X1 Carbon has Intel's WiDi technology for wirelessly sending video and audio to a compatible projector, TV or monitor.

In the back is a phone network SIM card slot that connects up with the system's integrated 3G mobile data card, which works with AT&T's HSPA+ network. There's no 4G LTE data option available.

The X1 Carbon has a black keyboard with deeply scalloped keys. The 19.4mm keys are comfortable and responsive with 1.6mm of depth. The system's backlit keyboard should appeal to night owls, but the X1 Carbon doesn't have the overhead light that's on the ThinkPad X230.

The system has both a TrackPoint nub in the middle of the keyboard and a large glass touchpad at the bottom that can work with multi-finger gestures. It's security conscious as well, with a fingerprint scanner, Trusted Platform Module (TPM) and BIOS encryption.

Testing performance

This is a screamer that should satisfy even the most power-hungry travelers. When tested with PassMark Software's PerformanceTest 7.0, it rated a score of 1,618.7 - 15% higher than the Lifebook U772 (which has the same CPU). On Maxon's CineBench performance test suite, the X1 Carbon scored a 2.58 on the processor test, slightly behind the Lifebook; however, it bettered the Lifebook on the graphics test, scoring 14.49 frames per second. During its performance testing, its case never heated up beyond being warm.

With the system set not to dim the screen, the X1 Carbon's 2,800mAh battery played six videos continuously in sequence from a USB drive for 4 hours and 5 minutes - 38 minutes shorter than the run time of the Lifebook. This should, however, translate into a full workday of stop-and-go computing. As with many ultrabooks, you can't swap the X1 Carbon's battery for a fresh one.

The X1 Carbon has a secret weapon for those who never seem to have enough time to charge their computers. Lenovo's new Rapid Charge technology was, with the system turned off, able get the battery to a 50% charge in 22 minutes, an 84% charge in 35 minutes and a full charge in 50 minutes. When I turned the system on, the X1 Carbon required 62 minutes to get to a full charge.

With a pair of speakers underneath and Dolby Home Theater 4 software, the X1 Carbon sounds surprisingly rich and loud for such a small system. It has a rocker switch for adjusting the volume and mute buttons for the speakers, along with a dual-microphone array.

The X1 Carbon comes with 5GB of free cloud storage and a slew of ThinkPad utilities. Lenovo includes the standard one-year warranty; a three-year warranty is available for the extra cost.


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Tsais said: Pathetic that Lenovo uses slow Sandisk SSDs in these Those caused an uproar when they showed up in some Zenbooks due to shortages on the normally used and much faster Adata SSDsAfter reading a fair number of the early rush-job reviews on this to find out how the screen is Im a bit puzzled as opinions on the display seem divided 5050 with half the reviewers saying the screen is dim and washed out with bad viewing angles and others saying its bright and colorful This review is the first I see that states it has an IPS panelIt is extremely annoying that Manufacturers fail to say what type of display panel and what type of SSD they use resulting in users needing to do a bunch of detective work before they can buy somethingLenovo only states that the panel is lit by LED whoopdidoo that tells us nothing that fits pretty much every notebook in 2012 Thats akin to only saying the processor is powered by silicon rather than its an intel i5-3xxxUThe way the different reviews turned out its likely that Lenovo doesnt say anything about the display panel so they can install whatever they want at their convenience with nobody the wiser creepy

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