World’s first 45nm processor:

In one of the biggest advancements in fundamental transistor design, Intel is using dramatically different transistor materials to build the hundreds of millions of microscopic 45nm transistors inside the next generation of its Core2 family of processors.
This new transistor design break-through will allow Intel to continue delivering record-breaking PC, laptop and server processor speeds while reducing the amount of electrical leakage from transistors that can hamper chip and PC design, size, power consumption, noise and costs. It also ensures that Moore’s Law-a high-tech industry axiom that transistor counts double about every two years to deliver ever more functionality at exponentially decreasing cost-thrives well into the next decade.
By using a new materials combination of high-k gate dielectrics and metal gates, Intel’s 45nm transistors significantly improve performance to deliver faster multicore processors that consume less power.