Everyone knows that solid state drives are quick, but capacity remains a major concern. Intel and Samsung have tackled the problem with a technology called 3D NAND which builds upon existing SSD technology by adding more planes to each memory chip’s die. The new Samsung 850 Evo drives, which can achieve a capacity of 120GB on a piece of hardware barely larger than a thumb drive, have proven 3D NAND can produce results. But it’s not the only game in town. Crossbar, a hardware startup founded in 2010, has been pouring time and money into an alternative called resistive random access memory, or RRAM.
