Using a technology called “Dual Gate” Transistors, DDR3 SDRAM by Elpida
is aiming to be a low-power, high-speed memory device. Dual-Gate transistors are supposed to address a lot of the current leakage issues that is seen with higher speed DDR and DDR2 chips. These new chips from Elpida, starting in 512MB sizes, will apparently begin at 1333Mhz with a 1.5V operating voltage. Lower voltage meaning less heat, higher clock speed meaning more, so it may end up balancing out quite nicely. The first series of these use a 90nm process and are supposed to be available in quantity as early as next year. If this is true, and it takes off, DDR2 may end up being one of the most shortest-lived RAM technologies out there... as it is not even yet mainstream.