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Samsung SSD PM991 NVMe 256GB

Price and performance details for the Samsung SSD PM991 NVMe 256GB can be found below. This is made using thousands of PerformanceTest benchmark results and is updated daily.

  • The first graph shows the relative performance of the Hard Drive compared to the 10 other common Hard Drives in terms of PassMark Disk Rating.
  • The 2nd graph shows the value for money, in terms of the Disk Rating per dollar.

Samsung SSD PM991 NVMe 256GB

Description:  MZVLQ256HAJD

Drive Size:  238.5 GB

Other names:  PM991 NVMe Samsung 256GB, SAMSUNG MZVLQ256HAJD-000H1, SAMSUNG MZVLQ256HAJD-00000, NVMe PM991 NVMe Samsu, NVMe SAMSUNG MZVLQ256HAJD-00000, SAMSUNG MZVLQ256HAJD-000, NVMe PM991 NVMe Samsung 256GB, NVMe SAMSUNG MZVLQ256HAJD-000H1, SAMSUNG MZVLQ256HAJD-00007, SAMSUNG MZVLQ256HAJD-000AC, SAMSUNG MZVLQ256HAJD-00A00

Drive First Benchmarked: 2019-12-11

Drive Rating/$Price: 231.10

Overall Rank:  5390

Last Price Change:  $34.95 USD (2021-09-26)

Average Drive Rating
8077
Samples: 2418

Disk Test Suite Average Results for Samsung SSD PM991 NVMe 256GB

Sequential Read1,378 MBytes/Sec
Sequential Write583 MBytes/Sec
Random Seek Read Write (IOPS 32KQD20)488 MBytes/Sec
IOPS 4KQD148 MBytes/Sec
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Drive Rating Relative to Top 10 HDDs Common Drives
As of 13th of July 2025 - Higher results represent better performance
Drive Average Disk Rating
Samsung SSD PM991 NVMe 256GB
8,077
Seagate ST1000DM010
1,443
TOSHIBA DT01ACA100
1,291
WDC WD10EZEX
1,258
Seagate ST2000DM001
1,213
Seagate ST1000DM003
1,182
TOSHIBA DT01ACA050
1,146
TOSHIBA MQ04ABF100
1,094
WDC WD10SPZX
939
HGST HTS721010A9E630
818
PassMark Software © 2008-2025
Last 5 Baselines for Samsung SSD PM991 NVMe 256GB
Most recent listed first
Baseline Disk Rating
BL2754031 - Jul 10 2025
10725
BL2753984 - Jul 10 2025
5156
BL2753930 - Jul 10 2025
11795
BL2751925 - Jul 09 2025
10747
BL2751676 - Jul 09 2025
10365
PassMark Software © 2008-2025