SRAM is a type of volatile memory, meaning the data goes away when it’s turned off. MRAM, by contrast, is non-volatile thanks to its vastly different architecture. Whereas all DRAM stores data as units of electric charge, MRAM uses a series of magnetic storage elements. The specific spin-transfer torque version of the technology used by Toshiba uses spin-aligned electrons to modify data more efficiently. According to Toshiba, its MRAM solution could eliminate most of the power leakage from L2 cache, which by itself can account for up to 80% of L2 power usage.
Toshiba MRAM cache could drop CPU power consumption by 60 percent
Posted on Thursday, Jun 12 2014 @ 11:26 CEST by Thomas De Maesschalck