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Samsung SSD PM991 NVMe 128GB

Price and performance details for the Samsung SSD PM991 NVMe 128GB 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 128GB

Description:  MZVLQ128HBHQ

Drive Size:  119.2 GB

Other names:  PM991 NVMe Samsung 128GB, SAMSUNG MZVLQ128HBHQ-00000, SAMSUNG MZVLQ128HBHQ-000, SAMSUNG MZVLQ128HBHQ-000H1

Drive First Benchmarked: 2020-06-10

Drive Rating/$Price: NA

Overall Rank:  6251

Last Price Change:  NA

Average Drive Rating
7561
Samples: 153

Disk Test Suite Average Results for Samsung SSD PM991 NVMe 128GB

Sequential Read1,403 MBytes/Sec
Sequential Write483 MBytes/Sec
Random Seek Read Write (IOPS 32KQD20)425 MBytes/Sec
IOPS 4KQD143 MBytes/Sec
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Drive Rating Relative to Top 10 HDDs Common Drives
As of 13th of December 2025 - Higher results represent better performance
Drive Average Disk Rating
Samsung SSD PM991 NVMe 128GB
7,561
Seagate ST1000DM010
1,391
TOSHIBA DT01ACA100
1,264
WDC WD10EZEX
1,226
Seagate ST2000DM001
1,196
Seagate ST1000DM003
1,176
TOSHIBA MQ04ABF100
1,071
WDC WD10SPZX
910
HGST HTS721010A9E630
809
TOSHIBA MQ01ABD100
782
Last 5 Baselines for Samsung SSD PM991 NVMe 128GB
Most recent listed first
Baseline Disk Rating
BL3122484 - Dec 10 2025
6136
BL3122447 - Dec 10 2025
6136
BL3122272 - Dec 10 2025
6730
BL3115165 - Dec 07 2025
11564
BL3096874 - Dec 01 2025
10597