Samsung has begun mass production of the industry's first 12Gb LPDDR4 DRAM dies for mobile devices, fabricated on its 20nm manufacturing process. The new chips, which offer a 50 percent greater density than existing 8Gb dies, will allow manufacturers to offer mobile devices with more RAM than a mainstream laptop: 6GB, with four 12Gb dies in a single DRAM chip package. Phones like Samsung's own Galaxy Edge 6+ currently top out at 4GB, with 3GB being more common, even on high-end devices.