4 thoughts on “Virident Makes Flash Memory Go Green”

  1. The one problem they need to fix with Flash memory is the number of rewrites that’s allowed before the memory “breaks.” Try and install (and run) Windows on a flash drive, you’ll burn it out a matter of days!

  2. Actually, my impression is that Virident’s technology can’t use “vanilla Flash” because vanilla flash (especially NAND) can’t do a good enough DRAM impression – it requires Spansion’s MirrorBit technology.

    Dameon – note that there are many different kinds of flash with different characteristics (SLC NOR, MLC NOR, SLC NAND, MLC NAND, etc). NOR memory has much better endurance than NAND (typically > 100K cycles) and much smaller block size. There are various solutions to the flash write endurance (and speed) problem – I’d like see what Virident’s solution is.

  3. @ Tony,

    Thanks for the comment and pointing out my misuse of language in describing the flash. I wrote about the MirrorBit a paragraph down so my bad for not being clear.

  4. It’s NOR, as the Virident folks told me. I wonder what’s the percentage of power is being used by RAM in a typical computer system though. I imagine it to be much smaller than CPU and hard drives. Remember their special memory controller uses additional power as well.

    They’re in a weird cost/benefit space.

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