AnandTech Storage Bench - Light

Our Light storage test has relatively more sequential accesses and lower queue depths than The Destroyer or the Heavy test, and it's by far the shortest test overall. It's based largely on applications that aren't highly dependent on storage performance, so this is a test more of application launch times and file load times. This test can be seen as the sum of all the little delays in daily usage, but with the idle times trimmed to 25ms it takes less than half an hour to run. Details of the Light test can be found here. As with the ATSB Heavy test, this test is run with the drive both freshly erased and empty, and after filling the drive with sequential writes.

ATSB - Light (Data Rate)

Both capacities of the Samsung PM981 offer great average data rates on the Light test. Their performance when full or empty is improved over the Samsung 960 EVO and comes close to the 960 PRO.

ATSB - Light (Average Latency)ATSB - Light (99th Percentile Latency)

The average and 99th percentile latency scores of the PM981s aren't much of an improvement over Samsung's last generation, but this is still a new record for flash-based SSDs, even though the PM981 is using TLC NAND.

ATSB - Light (Average Read Latency)ATSB - Light (Average Write Latency)

The average write latency of the PM981s is great whether the test is run on a full or empty drive, but the average read latency is slightly worse than the 960 PRO when the test is run on a full drive.

ATSB - Light (99th Percentile Read Latency)ATSB - Light (99th Percentile Write Latency)

The 99th percentile read latency of the PM981s is record-setting when the Light test is run on an empty drive, but only the 1TB sets a record when the test is run on a full drive. The 99th percentile write latency is excellent on both drives in either test scenario.

AnandTech Storage Bench - Heavy Random Performance
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  • skavi - Monday, December 04, 2017 - link

    Lol, tech isn't wine. If people aren't working to improve it, it won't get better. Reply
  • skavi - Monday, December 04, 2017 - link

    Lol, tech isn't wine. If people aren't working to improve it, it won't get better. Reply
  • WorldWithoutMadness - Friday, December 01, 2017 - link

    that and ram oligopoly. Almost reminded me of intel before ryzen. Reply
  • Drumsticks - Thursday, November 30, 2017 - link

    I doubt we'll see 1TB 3D XPoint in an m.2 form factor until at least the second generation of XPoint. Power consumption looks too high; you'd probably have to severely limit performance to get into m.2, or you'd need a massive unrealistic heatsink. Reply
  • UltraWide - Thursday, November 30, 2017 - link

    Yes, the people want to see 900p destroy these benchmarks!! :) Reply
  • romrunning - Thursday, November 30, 2017 - link

    I would love to see the Optane 900p results included as well. Reply
  • peevee - Thursday, November 30, 2017 - link

    Me too. Reply
  • mczak - Thursday, November 30, 2017 - link

    I miss the power draw numbers. Reply
  • Drazick - Thursday, November 30, 2017 - link

    I don't like those m.2 drives. Can't we have high bandwidth connection for 2.5 inch drives? It will have less thermal issues for desktop configurations. Reply
  • DanNeely - Thursday, November 30, 2017 - link

    That's the barely gained any traction outside of enterprise U.2 connection. Reply

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