For the folks that care about power consumption, there is already DDR3L and DDR3U today that use lower voltages than standard DDR3. Intel's Ivy Bridge chipsets

For the folks that care about power consumption, there is already DDR3L and DDR3U today that use lower voltages than standard DDR3. Intel's Ivy Bridge chipsets can support DDR3 and DDR3L and I'm using the latter in my laptop.