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The main focus of his talk on Nehalem today was on Turbo Mode, which basically increases the loaded processing core’s clock speeds and voltages when at least one of the cores is idle in order to deliver the maximum possible performance within the chip’s defined power budget.

Gelsinger invited Rajesh Kumar, Intel Fellow and Director of Circuit and Low Power Technologies, on stage to talk about the technology in a bit more detail.

In the past, Intel has clock-gated its chips in order to keep energy efficiency high on the agenda – with Nehalem, Kumar says that in addition to clock gating, processors based on the new microarchitecture will also have power gating capabilities as well.