[...]FinFETs can handle higher drive currents and switch between their on and off states at lower voltages. Chip designers can use those characteristics to reach higher clock speeds, or use less power, or achieve some combination of those advantages. FinFETs also leak much less current when the transistor is switched off.
Intel now has a fundamentally superior transistor, in addition to its 18- to 24-month lead in lithography. While Intel is moving into 22nm production this year, competitors are lagging a generation behind, just starting 32nm or 28nm production. Some companies don’t expect to have FinFETs until one process generation after Intel (14nm). Others have no FinFET roadmap at all. It adds up to a four-year lead for Intel—a huge obstacle for rival chipmakers to overcome.[...]