还早。everspin 最厉害，才到256mbit，也就是32mbyte的die。三星是最大的潜在竞争者。三星收购的grandis拥有最初的专利。grandis授权给摩托罗拉过。但二人还是发生过诉讼。最后，grandis撤诉。更多关于mram的信息请各位参考网页链接

During Samsung Electronic's Foundry Forum, the Korean chip maker reaffirmed its goal to start producing STT-MRAM chips in 2018. In fact Samsung now says that it will mass produce these chips next year, while last year it said that 2018 will only see limited production while real mass production will only begin in 2019.

Samsung announced it will produce the 2018 MRAM chips will be produced using 8-nano low power plus (8LMPP) semiconductor foundry process. Samsung sees MRAM produced by 4LPP by 2020.