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Intel Announces 3D XPoint Persistent Memory DIMMs

posted by janrinok on Thursday May 31 2018, @03:28PM   
from the I'm-still-trying-to-master-Donkey-Kong dept.

takyon writes:

Intel has announced 3D XPoint DIMMs ranging from 128 GB to 512 GB per module:

Intel today announced the availability of their long-awaited Optane DIMMs, bringing 3D XPoint memory onto the DDR4 memory bus. The modules that have been known under the Apache Pass codename will be branded as Optane DC Persistent Memory, to contrast with Optane DC SSDs, and not to be confused with the consumer-oriented Optane Memory caching SSDs.

The new Optane DC Persistent Memory modules will be initially available in three capacities: 128GB, 256GB and 512GB per module. This implies that they are probably still based on the same 128Gb 3D XPoint memory dies used in all other Optane products so far. The modules are pin-compatible with standard DDR4 DIMMs and will be supported by the next generation of Intel's Xeon server platforms.

The Optane DC Persistent Memory modules Intel is currently showing off have heatspreaders covering the interesting bits, but they appear to feature ten packages of 3D XPoint memory. This suggests that the 512GB module features a raw capacity of 640GB and that Optane DC Persistent Memory DIMMs have twice the error correction overhead of ECC DRAM modules.

Also at Tom's Hardware and Ars Technica.

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Original Submission

• Re:Still just a faster SSD (Score: 4, Informative) by takyon on Thursday May 31 2018, @08:18PM

  by takyon (881) <takyonNO@SPAMsoylentnews.org> on Thursday May 31 2018, @08:18PM (#686912) Journal

  But it still has less than 10K write endurance

  https://thememoryguy.com/examining-3d-xpoints-1000-times-endurance-benefit/ [thememoryguy.com]

  They may be conservatively underestimating the write endurance. From the AnandTech article:

  The existing enterprise Optane SSD DC P4800X initially launched with a write endurance rating of 30 drive writes per day (DWPD) for three years, and when it hit widespread availability Intel extended that to 30 DWPD for five years. Intel is now preparing to introduce new Optane SSDs with a 60 DWPD rating, still based on first-generation 3D XPoint memory. Another endurance rating increase isn't too surprising: Intel has been accumulating real-world reliability information about their 3D XPoint memory and they have been under some pressure from competition like Samsung's Z-NAND that also offers 30 DWPD with a more conventional flash-based memory.

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