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Samsung PM991a MZVLQ256HBJD

PM991 MZVLQ256HBJD

The Samsung PM991a 256 GB MZVLQ256HBJD is a mid range NVMe 1.3 SSD that uses the M.2 interface (2280). It is rated at a maximum of 3200 MB/s sequential read and 1300 MB/s write.

TypeSSD
SizeM.2
Capacity256 GB
InterfaceNVMe
Announced17.09.2021
LinkSamsung PM991a MZVLQ256HBJD

Benchmarks

Performance Rating - DiskSpd
17.6 pt (20%)
Seagate ST1000LM014 Solid State Hybrid Drive
0.717 -96%
...
WDC PC SN720 SDAPNTW-512G
17 -3%
Kingston OM8PDP3256B
17.1 -3%
Phison 512GB PA6620060U
17.2 -2%
Samsung PM991 MZVLQ512HBLU
17.3 -2%
WDC PC SN530 SDBPNPZ-265G
17.3 -2%
Lenovo UMIS AM620 RPJTJ512MEE1OWX
17.4 -1%
KDI OM3PDP3-AD NVMe KDI 256GB
17.4 -1%
Samsung PM991 MZALQ256HAJD
17.5 -1%
Kioxia THGJFJT2T85BAT01
17.5 -1%
Samsung PM991a MZVLQ256HBJD
17.6
Ayaneo CyberThunder-2TB
17.6 0%
Samsung PM991 MZVLQ1T0HALB
17.7 1%
BiWin CE480Y2D100-512G
17.7 1%
Toshiba KBG40ZNS512G NVMe
17.8 1%
Samsung PM991 MZVLQ512HALU
17.8 1%
Lexar 512GB NM6A1 LNM6A1X512G-HNNG
17.8 1%
SK Hynix HFS001TEJ9X164N
17.9 2%
Intel SSDPEMKF512G8 NVMe SSD
18 2%
Samsung PM991 MZVLQ256HAJD
18 2%
...
Kingston Fury Renegade G5 4TB
87.8 399%
0%
100%
Restrict / Search: Model: Max. age: years
AS SSD - Copy Game
min: 698     avg: 780     median: 700.4 (12%)     max: 942.75 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
AS SSD - Copy Program
min: 331.83     avg: 408.1     median: 349.4 (13%)     max: 543.21 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
AS SSD - Copy ISO
min: 1008.14     avg: 1097     median: 1034 (4%)     max: 1249.94 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
AS SSD - Score Total
min: 2470     avg: 2532     median: 2505.5 (15%)     max: 2645 Points
+ 4 benchmarks and specifications   + Show comparison chart
AS SSD - Score Write
min: 952     avg: 1049     median: 1030 (14%)     max: 1184 Points
+ 4 benchmarks and specifications   + Show comparison chart
AS SSD - Score Read
min: 925     avg: 1017     median: 1031.5 (16%)     max: 1078 Points
+ 4 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Write *
min: 0.023     avg: 0     median: 0 (0%)     max: 0.039 ms
+ 4 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Read *
min: 0.076     avg: 0.1     median: 0.1 (0%)     max: 0.18 ms
+ 4 benchmarks and specifications   + Show comparison chart
AS SSD - 4K-64 Write
min: 695.1     avg: 813     median: 772.9 (13%)     max: 1011.23 MB/s
+ 4 benchmarks and specifications   + Show comparison chart
AS SSD - 4K-64 Read
min: 682     avg: 746     median: 757.4 (15%)     max: 788 MB/s
+ 4 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Write
min: 98.57     avg: 144.6     median: 157.3 (31%)     max: 165.5 MB/s
+ 4 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Read
min: 39.66     avg: 47.5     median: 47.7 (15%)     max: 54.7 MB/s
+ 4 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Write
min: 739     avg: 912     median: 932.9 (8%)     max: 1042 MB/s
+ 4 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Read
min: 2035     avg: 2228     median: 2263 (18%)     max: 2349 MB/s
+ 4 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K
min: 109.07     avg: 136.4     median: 147.1 (13%)     max: 153 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K
min: 37.21     avg: 49.9     median: 56 (1%)     max: 56.44 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5 Write Seq
min: 1175     avg: 1193     median: 1193 (6%)     max: 1211 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5 Read Seq
min: 1682     avg: 1746     median: 1746 (19%)     max: 1810 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K Q32T1
min: 379.96     avg: 419.3     median: 430.5 (9%)     max: 447.3 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K Q32T1
min: 352.63     avg: 473.2     median: 493.9 (7%)     max: 573 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write Seq Q32T1
min: 1103     avg: 1182     median: 1210.1 (8%)     max: 1234 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read Seq Q32T1
min: 1974     avg: 2695     median: 3009 (16%)     max: 3102 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 6 Write 4K Q8T8
min: 350.86     avg: 423.5     median: 423.5 (8%)     max: 496.1 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 6 Read 4K Q8T8
min: 806.11     avg: 854     median: 854.1 (13%)     max: 902 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q1t1_write
min: 92     avg: 135     median: 133 (31%)     max: 182.1 MB/s
+ 4 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q1t1_read
min: 41.5     avg: 48.6     median: 48.3 (14%)     max: 56.2 MB/s
+ 4 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q32t16_write
min: 359     avg: 587     median: 620.5 (9%)     max: 749 MB/s
+ 4 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q32t16_read
min: 718     avg: 818     median: 813.5 (10%)     max: 926 MB/s
+ 4 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_write
min: 1129     avg: 1182     median: 1190.5 (11%)     max: 1219 MB/s
+ 4 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_read
min: 1462     avg: 1640     median: 1616.5 (17%)     max: 1864 MB/s
+ 4 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_q8t1_write
min: 1014     avg: 1132     median: 1140 (8%)     max: 1234 MB/s
+ 4 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_q8t1_read
min: 1584     avg: 2411     median: 2469.5 (15%)     max: 3119 MB/s
+ 4 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd Loop seq_q8t1_read
min: 1717     avg: 1970     median: 1904.5 (12%)     max: 2353 MB/s
+ 4 benchmarks and specifications   + Show comparison chart
01002003004005006007008009001000110012001300140015001600170018001900200021002200230024002500260027002800290030003100Tooltip
- Range of benchmark values
red legend - Average benchmark values
* Smaller numbers mean a higher performance

Amazon Logo
  • $99.99
    Samsung PM991a 256GB NVMe M.2 2280 SSD PCIe Gen3x4 Internal Solid State Drive, Up to 2200MB/s, 3D TLC NAND, DRAM-Less with HMB, for Laptop/Desktop, Fast Boot, MZVLQ256HBJD-00BH1 (OEM New)
  • $79.99
    Lenovo Samsung PM991 MZALQ256HAJD-000L2 256GB M.2, FRU5SS0V42253 (MZALQ256HAJD-000L2 256GB M.2 PCIe 2242 SSD)
  • $125.00
    MZVLB512HBJQ-000D7 Samsung 512GB PM981a SED Encryption M2 M.2 2280 PCIe SSD (New with Warranty), MZ-VLB512C 0WD87X WD87X, PM981 Phoenix Controller, Compatible with Dell HP Acer Asus Lenovo
  • $78.02
    MZ-VLQ2560 4_Samsung PM991 256GB M.2 NVMe PCIe SSD MZVLQ256HAJD-000H1 4_HP L65187-002 Authentic Replacement Spare Part for Intel Compatible and All Systems L85354 M17197
  • $75.00
    Solid State Drive MZVLB256HAHQ-000L7 Compatible Replacement Spare Part for Samsung MZ-VLB2560 PM981 256GB M.2 2280 PCI-Express 3.0 x4 NVMe SSD

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v1.35
log 16. 20:11:17

#0 ran 0s before starting gpusingle class +0s ... 0s

#1 no ids found in url (should be separated by "_") +0s ... 0s

#2 not redirecting to Ajax server +0s ... 0s

#3 did not recreate cache, as it is less than 5 days old! Created at Fri, 12 Jun 2026 08:31:52 +0200 +0.004s ... 0.004s

#4 composed specs +0.005s ... 0.009s

#5 did output specs +0s ... 0.009s

#6 getting avg benchmarks for device 3721 +0.069s ... 0.077s

#7 got single benchmarks 3721 +0.011s ... 0.089s

#8 got avg benchmarks for devices +0s ... 0.089s

#9 min, max, avg, median took s +3.828s ... 3.917s

#10 return log +0.542s ... 4.459s

Notebook reviews with Samsung PM991a MZVLQ256HBJD

Dynabook Satellite Pro C50D laptop in review - Office computer with AMD Ryzen

Dynabook Satellite Pro C50D laptop in review - Office computer with AMD Ryzen

Dynabook equips the Satellite Pro with an AMD processor for the first time, but still uses the familiar case. Apart from the processor, nothing has actually changed, but is that still enough for a cheap office computer in 2022?
AMD Ryzen 5 5600U, Vega 7, 15.6", 1.8 kg
Samsung Galaxy Book2 Pro 360 13 Review: Lightweight 2-in-1 laptop with stylus input and OLED display

Samsung Galaxy Book2 Pro 360 13 Review: Lightweight 2-in-1 laptop with stylus input and OLED display

Weighing only 1,040 g, the Galaxy Book2 Pro 360 scores points with an Alder Lake CPU, Thunderbolt 4, and very good battery life. Positive: The laptop is completely silent when required. The OLED touchscreen can be used both with the fingers as well as with the included S-Pen.
Intel Core i7-1260P, Iris Xe G7 96EUs, 13.3", 1 kg
Samsung Galaxy Book2 Pro 13 review: Subnotebook with efficient Alder Lake i5

Samsung Galaxy Book2 Pro 13 review: Subnotebook with efficient Alder Lake i5

The Galaxy Book2 weighs less than 1 kg and is powered by a 12th generation Intel i5. It is also extremely thin thanks to its OLED display. The result is an extremely portable notebook that Samsung has endowed with stamina and performance, but also with the usual weaknesses.
Intel Core i5-1240P, Iris Xe G7 80EUs, 13.3", 885 g
Realme Book (Slim) Core i3

Realme Book (Slim) Laptop Review: Performant Tiger Lake Core i3 offering with a 3:2 2K display

The Realme Book (Slim) is the company's attempt at a capable all-rounder that can handle basic office and multimedia tasks. We have the Core i3 version of the Realme Book (Slim) with us, and we test it out extensively to see whether Realme's laptop debut is worth your consideration.
Intel Core i3-1115G4, UHD Graphics Xe G4 48EUs, 14", 1.4 kg

Samsung Galaxy Book2 Pro 13 NP930XED-KA1DE: Intel Core i5-1240P Intel Iris Xe Graphics G7 80EUs, 13.30", 0.9 kg
  External Review » Samsung Galaxy Book2 Pro 13 NP930XED-KA1DE

Samsung Galaxy Book2 Pro 360 13 NP930QED-KA3DE: Intel Core i7-1260P Intel Iris Xe Graphics G7 96EUs, 13.30", 1 kg
  External Review » Samsung Galaxy Book2 Pro 360 13 NP930QED-KA3DE

Realme Book (Slim): Intel Core i3-1115G4 Intel UHD Graphics Xe G4 48EUs, 14.00", 1.4 kg
  External Review » realme Book (Slim)

Samsung Galaxy Book2 Pro 360 13 NP930QED-KA3DE: Intel Core i7-1260P Intel Iris Xe Graphics G7 96EUs, 13.30", 1 kg
   » Samsung Galaxy Book2 Pro 360: 2-in-1-laptop with OLED display

Samsung Galaxy Book2 Pro 13 NP930XED-KA1DE: Intel Core i5-1240P Intel Iris Xe Graphics G7 80EUs, 13.30", 0.9 kg
   » Ultra-compact and bright: Samsung Galaxy Book2 Pro 13 with Alder Lake and OLED in review

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Klaus Hinum (Update: 2021-09-17)