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back to article A challenger appears: Specs for Samsung's potential Optane killer

How does Korean flash and DRAM chipper Samsung's Z-NAND compare to Intel and Micron's 3D XPoint? Z-NAND is Samsung's tweaked flash technology, thought to be SLC (1 bit/cell) with a customised controller to speed it up. Optane is rushing Z-NAND to market adoption and it's a wide-open race. One of XPoint's advantages over NAND …

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  1. Dazed and Confused

    Am I missing something or is there something wrong here?

    The Samsung drive has a higher random read IOPS rating than the P4800X, but it has an even larger advantage in random write IOPS, which is emphasised in the sequential read/write bandwidth numbers where it is two and a half to three times better.

    Yet the table shows P4800X read & write rate as 550K & read bandwidth of 11.2 while write is 8GB/s

    Then shows the SZ985 having 750K reads/s but only 170K writes/s and bandwidth figures of 3.2GB/s for both reads and writes.

    9 0 Reply
    1. Spacedinvader
      Reply Icon
      WTF?

      Re: Am I missing something or is there something wrong here?

      What I came to say.

      2 0 Reply
    2. Anonymous Coward
      Reply Icon
      Anonymous Coward

      Re: Am I missing something or is there something wrong here?

      Yet the table shows P4800X read & write rate as 550K & read bandwidth of 11.2 while write is 8GB/s

      I guess somebody should not write their copy after the start of their Friday's pub lunch. The datasheets for both P4800X and SZ085 are easy enough to find; they contain more useful information that the article. Both appear to be an interesting product. I'd like five of each :)

      https://ark.intel.com/products/97164/Intel-Optane-SSD-DC-P4800X-Series-750GB-12-Height-PCIe-x4-20nm-3D-XPoint

      http://www.samsung.com/semiconductor/global/file/insight/2017/08/Ultra-Low_Latency_with_Samsung_Z-NAND_SSD-0.pdf

      3 0 Reply
      1. Dazed and Confused
        Reply Icon

        Re: Am I missing something or is there something wrong here?

        I'd like five of each :)

        The nice thing about bandwidth is that you can nearly always just buy more width.

        1 0 Reply
  2. eldakka
    Coat

    I'll happily take whichever one the reg decided to give me.

    1 0 Reply

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