The venerable ThinkPad brand will turn 25 this year, and Lenovo's new ThinkPad X1 devices will kick off celebrations with a slew of upgrades including sexier designs, faster processors, and screens with thinner borders.

The new ThinkPad X1 Carbon laptop (starting at $1,349), ThinkPad X1 Tablet (starting at $949) and ThinkPad X1 Yoga 2-in-1 (starting at $1,499) are smaller, thinner and lighter than ever before. In addition, the devices have much longer battery life.

Many of the advances come thanks to the upgrade to Intel's 7th Generation Core processors code-named Kaby Lake. The integrated GPUs are faster and provide the capability to support 4K video processing.

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