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Samsung PM991A MZALQ256HBJD

Samsung PM991A MZALQ256HBJD PM991A MZALQ256HBJD

The Samsung PM991A 256 GB MZALQ256HBJD is a mid range NVMe 1.3 SSD that uses the M.2 interface (small 2242 form factor).

TypeSSD
SizeM.2 2242
Capacity256 GB
InterfaceNVMe
Announced23.10.2021

Benchmarks

Performance Rating - DiskSpd
21.2 pt (30%)
64 GB eMMC Flash
2.4 -89%
...
Crucial P1 SSD CT1000P1SSD8
20.4 -4%
Lexar 1024GB LNM6A1X001T-HNNNG
20.5 -3%
20.5 -3%
Intel SSDPEMKF512G8 NVMe SSD
20.6 -3%
20.7 -2%
20.8 -2%
Toshiba BG4 KBG40ZPZ512G
20.8 -2%
20.9 -1%
ADATA XPG Gammix S11L 1024GB
21.1 0%
Samsung PM991A MZALQ256HBJD
21.2
21.2 0%
21.3 0%
Intel SSD 660p 1TB SSDPEKNW010T8
21.4 1%
Foresee VP1000F512G
21.5 1%
21.6 2%
21.8 3%
Adata Legend 710
22.1 4%
22.1 4%
22.1 4%
...
70.7 233%
0%
100%
AS SSD - Copy Game
437.9 MB/s (7%)
AS SSD - Copy Program
161.1 MB/s (6%)
AS SSD - Copy ISO
949 MB/s (9%)
AS SSD - Score Total
min: 2314     avg: 2532     median: 2532 (23%)     max: 2750 Points
AS SSD - Score Write
min: 977     avg: 1064     median: 1063.5 (19%)     max: 1150 Points
AS SSD - Score Read
min: 914     avg: 1004     median: 1003.5 (4%)     max: 1093 Points
AS SSD - Access Time Write *
min: 0.021     avg: 0     median: 0 (0%)     max: 0.033 ms
AS SSD - Access Time Read *
min: 0.071     avg: 0.1     median: 0.1 (0%)     max: 0.179 ms
AS SSD - 4K-64 Write
min: 728     avg: 823     median: 823.4 (16%)     max: 918.85 MB/s
AS SSD - 4K-64 Read
min: 658     avg: 739     median: 739.1 (22%)     max: 820.25 MB/s
AS SSD - 4K Write
min: 121.86     avg: 146.9     median: 146.9 (29%)     max: 172 MB/s
AS SSD - 4K Read
min: 43.13     avg: 49.1     median: 49.1 (16%)     max: 55.1 MB/s
AS SSD - Sequential Write
min: 772     avg: 931     median: 930.9 (11%)     max: 1089.74 MB/s
AS SSD - Sequential Read
min: 2011     avg: 2153     median: 2152.6 (22%)     max: 2294.23 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K
88.8 MB/s (8%)
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K
39.6 MB/s (1%)
CrystalDiskMark 5.2 / 6 - CDM 5 Write Seq
1205 MB/s (6%)
CrystalDiskMark 5.2 / 6 - CDM 5 Read Seq
1803 MB/s (22%)
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K Q32T1
382.3 MB/s (13%)
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K Q32T1
515 MB/s (8%)
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write Seq Q32T1
1205 MB/s (11%)
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read Seq Q32T1
2447 MB/s (19%)
DiskSpd - DiskSpd 4k_q1t1_read
min: 48.2     avg: 52.2     median: 52.2 (15%)     max: 56.2 MB/s
DiskSpd - DiskSpd 4k_q32t16_write
min: 445     avg: 681     median: 680.5 (14%)     max: 916 MB/s
DiskSpd - DiskSpd 4k_q32t16_read
min: 677     avg: 780     median: 779.5 (13%)     max: 882 MB/s
DiskSpd - DiskSpd seq_write
min: 1123     avg: 1160     median: 1160 (14%)     max: 1197 MB/s
DiskSpd - DiskSpd seq_read
min: 1816     avg: 1829     median: 1829 (32%)     max: 1842 MB/s
DiskSpd - DiskSpd seq_q8t1_write
min: 1137     avg: 1174     median: 1174 (10%)     max: 1211 MB/s
DiskSpd - DiskSpd seq_q8t1_read
min: 2187     avg: 2325     median: 2324.5 (17%)     max: 2462 MB/s
DiskSpd - DiskSpd Loop seq_q8t1_read
min: 2127     avg: 2290     median: 2290 (17%)     max: 2453 MB/s
0100200300400500600700800900100011001200130014001500160017001800190020002100Tooltip
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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show all (including archived), 2024, 2023
v1.26
log 25. 05:06:41

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

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

#2 did not recreate cache, as it is less than 5 days old! Created at Wed, 21 Feb 2024 16:04:38 +0100 +0.001s ... 0.001s

#3 composed specs +0.006s ... 0.007s

#4 did output specs +0s ... 0.007s

#5 getting avg benchmarks for device 3735 +0.018s ... 0.025s

#6 got single benchmarks 3735 +0.009s ... 0.034s

#7 got avg benchmarks for devices +0s ... 0.034s

#8 min, max, avg, median took s +1.096s ... 1.13s

#9 return log +0.013s ... 1.144s

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > Benchmarks / Tech > Laptop harddisks (HDD, SSD) benchmarks > Samsung PM991A MZALQ256HBJD SSD Benchmarks
Klaus Hinum (Update: 2021-10-23)