For Thinkpads, T450 (from 2015) probably hits the sweet spot as a daily driver. Few important notes: * Haswell got most of the major ISA extensions like e.g. A

For Thinkpads, T450 (from 2015) probably hits the sweet spot as a daily driver. Few important notes: * Haswell got most of the major ISA extensions like e.g. AVX2 * T440 did not have buttons for Trackpoint, making it pretty awful * 802.11ac 5GHz wifi and USB 3 are nice to have