Elpida says it has expanded its lineup of DDR3 RAM with what it says is the most energy-efficient memory of the type. A new format based on a 50 nanometer manufacturing process helps both reduce the size of each chip to 40mm (1.6in) square and also reduces the amount of power necessary to drive the memory. Where most DDR3 needs 1.5 volts, the new memory can scale back to 1.35V or even 1.2V in no
