iconcharts

Hard Drive Benchmarks

Over 1,000,000 Hard Drives Benchmarked

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: 239.24

Overall Rank:  6502

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

Average Drive Rating
8362
Samples: 3500

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

Sequential Read1,544 MBytes/Sec
Sequential Write578 MBytes/Sec
Random Seek Read Write (IOPS 32KQD20)482 MBytes/Sec
IOPS 4KQD147 MBytes/Sec
Search for Samsung SSD PM991 NVMe 256GB
from the Featured Merchants below:
Amazon.com
Newegg.com
EBay.com
Note: PassMark Software may earn compensation for sales from links on this site through affiliate programs.
Drive Rating Relative to Top 10 Common Drives
As of 20th of April 2026 - Higher results represent better performance
Drive Average Disk Rating
Samsung SSD PM991 NVMe 256GB
 		8,362
Seagate ST1000DM010
 1,364
Seagate Barracuda 2TB Hard Drive
 1,310
TOSHIBA DT01ACA100
 1,246
WDC WD10EZEX
 1,218
Seagate ST1000DM003
 1,172
TOSHIBA DT01ACA050
 1,133
TOSHIBA MQ04ABF100
 1,053
WDC WD10SPZX
 893
TOSHIBA MQ01ABD100
 810
PassMark Software © 2008-2026
Last 5 Baselines for Samsung SSD PM991 NVMe 256GB
Most recent listed first
Baseline Disk Rating
BL3418065 - Apr 17 2026
7592
BL3417242 - Apr 17 2026
11421
BL3414469 - Apr 16 2026
7132
BL3413399 - Apr 15 2026
12221
BL3413344 - Apr 15 2026
12332
PassMark Software © 2008-2026