Higher density DRAM isn't a viable way. AMD dropped the GDDR5 IMC from Kaveri because of the hight cost of this type of ram, one year ago. The fire damage suffered by SK Hynix's Wuxi FAB proved AMD right.
Replay available now: A handful of emerging network technologies are competing to be the preferred wide-area connection for the Internet of Things. All claim lower costs and power use than cellular but none have wide deployment yet. Listen in as proponents of leading contenders make their case to be the metro or national IoT network of the future. Rick Merritt, EE Times Silicon Valley Bureau Chief, moderators this discussion. Join in and ask his guests questions.