Typically, SSDs use flash as cache memory as opposed to the much faster DRAM, but Buffalo says that MRAM can bridge the gap between NAND flash and DRAM and provide a much better cache solution as a result. Flash is used today as it has non-volatile properties and does not lose its content like DRAM when the power is cut off. MRAM, which is similar to DRAM structure, is also a non-volatile memory technology, but faster than flash. The technology has been in development for more than a decade.
2DayBlog.com
See also:
itband, Buffalo shows SSDs with MRAM Cache
