An anonymous reader writes "Today’s mobile processors rely on high-speed static random-access memory (SRAM) to function. The problem with SRAM is it will only retain data when power is applied. That data also has to be refreshed regularly (many times a second), meaning it is a constant drain on a battery.
Toshiba has developed STT-MRAM to solve the problem. MRAM is non-volatile memory, meaning it retains data without power and only requires power for operations on that data. What Toshiba has managed to do is lower the power consumption of STT-MRAM by 90 percent while speeding up its operation to match SRAM.
The end result is cache memory that performs as well as SRAM, but only requires around a third of the power. That will be seen as a net gain in battery life for any processor and subsequent device incorporating it."
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