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Samsung PM991 MZALQ512HALU

The 512 GB Samsung SSD PM991 or MZALQ512HALU is a PCIe 3.0 x4 based, M.2 type solid state drive. The NVMe drive's transfer rates are entry-level to mid-tier by H1 2020 standards according to CrystalDiskMark.

Notebookcheck says:

... The SSD is connected via an NVMe PCIe 3.0 x4 connection and performs great in our benchmarks - Dell XPS 15 9560 Laptop Review | March 2017

TypeSSD
SizeM.2 2280
Capacity512 GB
InterfaceNVMe
Announced08.01.2020

Benchmarks

Performance Rating - DiskSpd
18.1 pt (22%)
Seagate ST1000LM014 Solid State Hybrid Drive
0.772 -96%
...
WDC PC SN520 SDAPMUW-512
17.6 -3%
Toshiba KBG30ZMT512G
17.6 -3%
Kingston OM3PDP3512B
17.7 -2%
Kingston KC2500 1 TB SKC2500M81000G
17.7 -2%
WDC PC SN520 SDAPMUW-256G
17.7 -2%
Kingston OM8PCP3512F-AB
17.8 -2%
Toshiba Kioxia XG6 KXG60PNV1T02
17.9 -1%
Netac S930E 1TB
18 -1%
Kioxia BG5 KBG5AZNT256G
18 -1%
Samsung PM991 MZALQ512HALU
18.1
Apple SSD AP1024 7171
18.1 0%
Kingston OM8PDP3512B-AI1
18.1 0%
Kingston OM8PDP3256B
18.2 1%
Samsung PM991 MZALQ256HAJD
18.4 2%
WDC PC SN530 SDBPNPZ-265G
18.4 2%
Phison 512GB PA6620060U
18.4 2%
Samsung PM991 MZVLQ512HBLU
18.5 2%
WDC PC SN720 SDAPNTW-512G
18.5 2%
Lenovo UMIS AM620 RPJTJ512MEE1OWX
18.6 3%
...
Corsair MP700 Pro 2TB
81.6 351%
0%
100%
AS SSD - Copy Game
min: 681     avg: 924     median: 945 (16%)     max: 1148 MB/s
+ 5 benchmarks and specifications   + Show comparison chart
AS SSD - Copy Program
min: 276.2     avg: 453.2     median: 467.5 (17%)     max: 582 MB/s
+ 5 benchmarks and specifications   + Show comparison chart
AS SSD - Copy ISO
min: 982     avg: 1310     median: 1287 (12%)     max: 1543 MB/s
+ 5 benchmarks and specifications   + Show comparison chart
AS SSD - Score Total
min: 2286     avg: 2643     median: 2691 (19%)     max: 2787 Points
+ 8 benchmarks and specifications   + Show comparison chart
AS SSD - Score Write
min: 708     avg: 1027     median: 1069.5 (15%)     max: 1144 Points
+ 8 benchmarks and specifications   + Show comparison chart
AS SSD - Score Read
min: 1063     avg: 1091     median: 1098 (23%)     max: 1117 Points
+ 8 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Write *
min: 0.02     avg: 0     median: 0 (0%)     max: 0.078 ms
+ 8 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Read *
min: 0.065     avg: 0.1     median: 0.1 (0%)     max: 0.126 ms
+ 8 benchmarks and specifications   + Show comparison chart
AS SSD - 4K-64 Write
min: 485     avg: 780     median: 819 (14%)     max: 872 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
AS SSD - 4K-64 Read
min: 830     avg: 854     median: 856.5 (24%)     max: 870 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Write
min: 100.8     avg: 140.2     median: 132.7 (26%)     max: 189.1 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Read
min: 32.37     avg: 45.8     median: 47.1 (15%)     max: 50.3 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Write
min: 802     avg: 1061     median: 1078.5 (10%)     max: 1268 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Read
min: 1706     avg: 1917     median: 1938.5 (15%)     max: 2012 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - 4K QD32 Write
525 MB/s (51%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - 4K QD32 Read
386.9 MB/s (30%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - 4K Write
139.2 MB/s (4%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - 4K Read
52.6 MB/s (1%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - 512K Write
1187 MB/s (22%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - 512K Read
1076 MB/s (31%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - Sequential Write
1118 MB/s (18%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - Sequential Read
1622 MB/s (31%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K
min: 102.8     avg: 129.5     median: 135.6 (12%)     max: 148.1 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K
min: 37.55     avg: 45.1     median: 46 (1%)     max: 52.3 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5 Write Seq
min: 946     avg: 1172     median: 1222 (7%)     max: 1333 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5 Read Seq
min: 1145     avg: 1496     median: 1541 (19%)     max: 1615 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K Q32T1
min: 381.8     avg: 448     median: 435.1 (14%)     max: 592 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K Q32T1
min: 335.5     avg: 414.9     median: 383.1 (6%)     max: 528 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write Seq Q32T1
min: 1315     avg: 1397     median: 1398 (9%)     max: 1456 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read Seq Q32T1
min: 2085     avg: 2307     median: 2346.5 (13%)     max: 2365 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q1t1_write
min: 67.8     avg: 122.5     median: 125.5 (29%)     max: 155 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q1t1_read
min: 36.3     avg: 45.2     median: 44.5 (13%)     max: 55 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q32t16_write
min: 378.5     avg: 634     median: 488.5 (9%)     max: 958 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q32t16_read
min: 690     avg: 855     median: 931.5 (15%)     max: 957 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_write
min: 1005     avg: 1155     median: 1158 (12%)     max: 1318 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_read
min: 1233     avg: 1488     median: 1543 (22%)     max: 1678 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_q8t1_write
min: 1264     avg: 1354     median: 1349 (9%)     max: 1423 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_q8t1_read
min: 2007     avg: 2252     median: 2312.5 (14%)     max: 2365 MB/s
+ 8 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd Loop seq_q8t1_read
min: 1763     avg: 2135     median: 2091 (13%)     max: 2357 MB/s
+ 7 benchmarks and specifications   + Show comparison chart
- Range of benchmark values for this graphics card
red legend - Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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v1.28
log 22. 16:53:52

#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 Wed, 22 Jan 2025 14:57:28 +0100 +0.001s ... 0.001s

#4 composed specs +0.003s ... 0.004s

#5 did output specs +0s ... 0.004s

#6 getting avg benchmarks for device 3442 +0.018s ... 0.022s

#7 got single benchmarks 3442 +0.023s ... 0.046s

#8 got avg benchmarks for devices +0s ... 0.046s

#9 min, max, avg, median took s +1.129s ... 1.175s

#10 return log +0.001s ... 1.176s

Notebook reviews with Samsung PM991 MZALQ512HALU

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Klaus Hinum (Update: 2020-03-21)