An Ultrabook that makes no Mac pretenses
Unlike many an Ultrabook, thereâs no mistaking this one for a MacBook Air, or even an Air wannabe. Staying true to the venerable ThinkPad brand, the X1 Carbon is matte-black through and through, and clad in that distinct rubberized coating that feels nice to the touch, wonât easily slip from your grip, and remains blessedly free of fingerprints. It looks every bit the business companion itâs intended to be. In fact, the X1 Carbon looks a lot like the ThinkPad X1 we reviewed last year. But itâs grown from 13 inches to 14 inches, and its body has been flattened to Ultrabook standards, measuring just .71 inches at its thickest. Its lap weight, by the way, comes in just under three pounds.
Can a ThinkPad be sexy? When youâre talking about the slender and sleek X1 Carbon, it sure can.
Another notable difference from last yearâs X1 is the Carbonâs carbon-fiber construction (see what they did there?). The material is used in the notebookâs shell and its internal âroll cage,â making it both lightweight and rugged enough to withstand eight Mil-Spec tests for toughness.
The X1 Carbon does feel sturdy. Despite its thin profile, thereâs little flex to the keyboard deck when the notebook is held by one corner. The hinges seem solid, and as an added bonus allow the notebook to open a full 180 degrees. We also have to give props to the keyboard. Itâs one of the most satisfying weâve used on an Ultrabook, with nice large keys and satisfying travel. If you like backlighting, the Carbonâs got it. The touchpad is also quite niceâ"smooth and predictableâ"and TrackPoint is there for folks who like to control the cursor with ThinkPadâs signature red nubbin.
The screen is a full 1600x900 pixels, and a matte coating keeps glare and reflections to a minimum. But the vertical viewing angle is fairly narrow, leading to contrast and color degradation off axis.
Compared to our previous Ultrabook zero-point rigâ"the first-gen Asus Zenbook UX31Eâ"the Ivy Bridgeâ"sporting X1 Carbon scored decisive wins in all the benchmarks, with margins of 15 to 60 percent. But this month weâre debuting a new Ultrabook zero-point, an Intel reference design featuring a 1.8GHz i5-3427U. This is the same CPU found in the Carbon X1, but as you can see from the chart, performance wasnât identical. We attribute the Intel rigâs wins to a combination of additional memory bandwidth (DDR3/1600 vs. DDR3/1333), which impacts game performance in particular, and a speedier SSD. Both drives have a SATA 6Gb/s controller, but CrystalDiskMark revealed a significant disparity, with Lenovoâs SSD achieving read/writes of 372.3- and 173.5Mb/s, respectively, to the Intelâs 479.5- and 303.5Mb/s.
Battery life on the X1 Carbon wasnât stellar at a little more than four hours in our video rundown test, but Lenovoâs RapidCharge makes rejuicing speedy. We were back at 75 percent battery capacity in 30 minutes and 100 percent in an hour.
The X1 Carbon isnât perfect, and that can make its relatively high price less palatable, but it does offer features you canât get anywhere else, namely ThinkPad quality and a look thatâs cool in that not-even-trying kind of way.

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