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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
Interface
Announced08.01.2020

Benchmarks

Performance Rating - DiskSpd
46.2 pt (57%)
64 GB eMMC Flash -90%
...
Toshiba KBG40ZNS512G NVMe -10%
WDC PC SN520 SDAPNUW-512G -9%
Intel SSDPEMKF512G8 NVMe SSD -2%
Samsung PM991 MZALQ512HALU
Intel SSD 660p 1TB SSDPEKNW010T8 0%
Samsung SSD 970 EVO Plus 1TB 9%
Crucial P1 SSD CT1000P1SSD8 13%
Samsung SSD PM981 MZVLB256HAHQ 20%
...
0%
100%
AS SSD - Copy Game MB/s
min: 733.71     avg: 923     median: 923.3 (31%)     max: 1112.92 MB/s
AS SSD - Copy Program MB/s
min: 467.48     avg: 498     median: 498.3 (37%)     max: 529.09 MB/s
AS SSD - Copy ISO MB/s
min: 1287     avg: 1384     median: 1384.2 (42%)     max: 1481.3 MB/s
AS SSD - Score Total
min: 2545     avg: 2594     median: 2594 (35%)     max: 2643 MB/s
AS SSD - Score Write
min: 968     avg: 992     median: 992 (28%)     max: 1016 MB/s
AS SSD - Score Read
min: 1072     avg: 1084     median: 1084 (43%)     max: 1096 MB/s
AS SSD - Access Time Write *
min: 0.025     avg: 0     median: 0 (0%)     max: 0.036 MB/s
AS SSD - Access Time Read *
min: 0.095     avg: 0.1     median: 0.1 (0%)     max: 0.117 MB/s
AS SSD - 4K-64 Write
min: 735.57     avg: 758     median: 757.9 (25%)     max: 780.22 MB/s
AS SSD - 4K-64 Read
min: 830.47     avg: 841     median: 840.6 (37%)     max: 850.81 MB/s
AS SSD - 4K Write
min: 109.31     avg: 131     median: 130.5 (1%)     max: 151.74 MB/s
AS SSD - 4K Read
min: 43.66     avg: 46.8     median: 46.8 (18%)     max: 49.89 MB/s
AS SSD - Seq Write
min: 801.91     avg: 1031     median: 1031.5 (25%)     max: 1261.05 MB/s
AS SSD - Seq Read
min: 1917.75     avg: 1965     median: 1964.8 (40%)     max: 2011.91 MB/s
CrystalDiskMark 3.0 - Write 4k QD32
525 MB/s (69%)
CrystalDiskMark 3.0 - Read 4k QD32
387 MB/s (41%)
CrystalDiskMark 3.0 - Write 4k
139 MB/s (54%)
CrystalDiskMark 3.0 - Read 4k
52.6 MB/s (1%)
CrystalDiskMark 3.0 - Write 512
1187 MB/s (28%)
CrystalDiskMark 3.0 - Read 512
1076 MB/s (45%)
CrystalDiskMark 3.0 - Write Seq
1118 MB/s (26%)
CrystalDiskMark 3.0 - Read Seq
1622 MB/s (47%)
CrystalDiskMark 5.2 / 6 - Write 4K
min: 144.4     avg: 145     median: 144.9 (33%)     max: 145.4 MB/s
CrystalDiskMark 5.2 / 6 - Read 4K
min: 51.6     avg: 51.9     median: 51.9 (1%)     max: 52.25 MB/s
CrystalDiskMark 5.2 / 6 - Write Seq
min: 946.1     avg: 977     median: 976.6 (23%)     max: 1007 MB/s
CrystalDiskMark 5.2 / 6 - Read Seq
min: 1145     avg: 1377     median: 1376.5 (26%)     max: 1608 MB/s
CrystalDiskMark 5.2 / 6 - Write 4K Q32T1
min: 468.4     avg: 530     median: 530 (31%)     max: 591.6 MB/s
CrystalDiskMark 5.2 / 6 - Read 4K Q32T1
min: 397.7     avg: 463     median: 462.9 (29%)     max: 528.1 MB/s
CrystalDiskMark 5.2 / 6 - Write Seq Q32T1
min: 1364     avg: 1373     median: 1372.5 (31%)     max: 1381 MB/s
CrystalDiskMark 5.2 / 6 - Read Seq Q32T1
min: 2291     avg: 2296     median: 2296 (25%)     max: 2301 MB/s
DiskSpd - 4k q1 t1 write
min: 125.24     avg: 140     median: 140.1 (54%)     max: 155 MB/s
DiskSpd - 4k q1 t1 read
min: 49.45     avg: 52.2     median: 52.2 (31%)     max: 55 MB/s
DiskSpd - 4k q32 t16 write
min: 936.72     avg: 946     median: 945.9 (35%)     max: 955 MB/s
DiskSpd - 4k q32 t16 read
min: 954     avg: 956     median: 955.6 (42%)     max: 957.1 MB/s
DiskSpd - seq write
min: 1004.75     avg: 1074     median: 1073.9 (33%)     max: 1143 MB/s
DiskSpd - seq read
min: 1232.5     avg: 1455     median: 1455.3 (47%)     max: 1678 MB/s
DiskSpd - seq q8 t1 write
min: 1264     avg: 1291     median: 1291.5 (39%)     max: 1318.99 MB/s
DiskSpd - seq q8 t1 read
min: 2283.38     avg: 2304     median: 2304.2 (65%)     max: 2325 MB/s
DiskSpd - loop seq q8 t1 read
2091 MB/s (59%)
010020030040050060070080090010001100120013001400150016001700180019002000210022002300Tooltip
- 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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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Laptop harddisks (HDD, SSD) benchmarks > Samsung SSD PM991 MZALQ512HALU Benchmarked
Klaus Hinum (Update: 2020-03-21)