Lucas123 (935744) writes "The upcoming shift from Double Data Rate 3 (DDR3) RAM to its successor, DDR4, will herald in a significant boost in both memory performance and capacity for data center hardware and consumer products alike. Because of greater density, 2X performance and lower cost, with the upcoming specification and products will for the first time mean DDR may be used in mobile devices instead of LPDDR. Today, mobile devices use low-power DDR (LPDDR) memory, the current iteration of which uses 1.2v of power. While the next generation of mobile memory, LPDDR3, will further reduce that power consumption (probably by 35% to 40%), it will also likely cost 40% more than DDR4 memory."
Link to Original Source