Increasing the operating voltage will boost the energy density of the composite significantly.

ECONOMIST: Carbon-composite batteries

And consumption is further reduced by adjusting the operating speed and voltage of the chip on the fly, depending on the user's activity.

ECONOMIST: Transmetamorphosis

Operating with a voltage of 1.35V, according to Samsung tests it provides an average 70% power savings (per unit density) over a 50nm class equivalent, 1.5V DDR3-based RDIMM.

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