System 76 claims to have built the “most powerfull Ubuntu laptop in the world“, and they may be right. Powered by an Intel Core i7 with your choice of a pair of 2GHz 2630QM to the 2.5GHz 2920XM chips, an NVIDIA GeForce GTX 485M that spits out 1080p on the 15.6-inch, LED-backlit display.