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Samsung PM991 MZ9LQ256HBJQ

Samsung PM991 MZ9LQ256HBJQ PM991 MZ9LQ256HBJQ

The Samsung PM991 MZ9LQ256HBJQ is a mid range PCIe M.2 2230 NVMe SSD. It was first found in the Microsoft Surface Pro 7+ and is user replaceable.

TypeSSD
SizeM.2 2230
Capacity256 GB
InterfaceM.2
Announced23.06.2020

Benchmarks

Performance Rating - DiskSpd
16.5 pt (23%)
64 GB eMMC Flash
2.32 -86%
...
SK Hynix BC711 HFM128GD3HX015N
15.4 -7%
Toshiba KBG30ZPZ128G
15.5 -6%
SSSTC CL1-8D512-HP
15.5 -6%
Lite-On CL1-8D512
15.9 -4%
SK Hynix BC711 1TB HFM001TD3JX016N
16.1 -2%
Micron 2200S 1TB MTFDHBA1T0TCK
16.2 -2%
ADATA Swordfish 2 TB
16.3 -1%
Kingston RBUSNS8154P3512GJ1
16.3 -1%
Micron 3460 256 GB Soldered
16.4 -1%
Samsung PM991 MZ9LQ256HBJQ
16.5
SK hynix BC511 HFM256GDJTNI-82A0
16.6 1%
Kingston NV2 1000GB SNV2S/1000G
16.8 2%
Micron 2200S 512GB
16.9 2%
WDC PC SN520 SDAPNUW-256G
17 3%
Toshiba KBG30ZMV512G
17.5 6%
Toshiba BG4 KBG40ZNT512G
17.6 7%
Transcend M.2 SSD 430S TS512GMTS430S
17.9 8%
Intel SSD 660p SSDPEKNW512G8
18 9%
SK hynix BC511 HFM512GDHTNI-87A0B
18.1 10%
...
Samsung 990 Pro 2 TB MZVL72T0HDLB
71.7 335%
0%
100%
AS SSD - Copy Game
min: 562     avg: 687     median: 686.5 (11%)     max: 811 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Copy Program
min: 262.8     avg: 388.9     median: 388.9 (14%)     max: 515 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Copy ISO
min: 996     avg: 1085     median: 1085 (10%)     max: 1174 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Score Total
min: 2155     avg: 2386     median: 2385.5 (22%)     max: 2616 Points
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Score Write
min: 858     avg: 925     median: 925 (16%)     max: 992 Points
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Score Read
min: 885     avg: 989     median: 989 (4%)     max: 1093 Points
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Write *
min: 0.028     avg: 0     median: 0 (0%)     max: 0.035 ms
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Read *
min: 0.179     avg: 0.2     median: 0.2 (1%)     max: 0.279 ms
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K-64 Write
min: 680     avg: 721     median: 721 (14%)     max: 762 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K-64 Read
min: 676     avg: 773     median: 773 (23%)     max: 870 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Write
min: 110.3     avg: 123.6     median: 123.6 (34%)     max: 136.9 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Read
min: 40.1     avg: 45.1     median: 45.1 (14%)     max: 50.1 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Write
min: 675     avg: 803     median: 803 (9%)     max: 931 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Read
min: 1687     avg: 1706     median: 1706 (17%)     max: 1725 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K
min: 78.8     avg: 122.1     median: 122.1 (11%)     max: 165.3 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K
min: 27.88     avg: 35.4     median: 35.4 (1%)     max: 42.95 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5 Write Seq
min: 742     avg: 849     median: 848.5 (5%)     max: 955 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5 Read Seq
min: 841     avg: 854     median: 854 (10%)     max: 867 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K Q32T1
min: 363.5     avg: 393.5     median: 393.5 (13%)     max: 423.5 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K Q32T1
min: 317.6     avg: 398.4     median: 398.4 (6%)     max: 479.2 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write Seq Q32T1
min: 1057     avg: 1059     median: 1058.5 (9%)     max: 1060 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read Seq Q32T1
min: 2251     avg: 2254     median: 2253.5 (18%)     max: 2256 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q1t1_write
min: 106     avg: 136.5     median: 136.5 (32%)     max: 167 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q1t1_read
min: 40.4     avg: 43.8     median: 43.8 (13%)     max: 47.1 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q32t16_write
min: 278     avg: 371     median: 371 (8%)     max: 464 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q32t16_read
min: 583     avg: 585     median: 584.5 (10%)     max: 586 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_write
min: 855     avg: 901     median: 901 (11%)     max: 947 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_read
min: 890     avg: 898     median: 897.5 (16%)     max: 905 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_q8t1_write
min: 1002     avg: 1039     median: 1039 (9%)     max: 1076 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_q8t1_read
min: 1989     avg: 2068     median: 2068 (16%)     max: 2147 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd Loop seq_q8t1_read
min: 2184     avg: 2188     median: 2188 (17%)     max: 2192 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
- 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), 2023, 2022
v1.26
log 03. 06:25:47

#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 Tue, 28 Nov 2023 15:38:25 +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 3633 +0.017s ... 0.024s

#6 got single benchmarks 3633 +0.009s ... 0.032s

#7 got avg benchmarks for devices +0s ... 0.032s

#8 min, max, avg, median took s +0.994s ... 1.026s

#9 return log +0.014s ... 1.04s

Notebook reviews with Samsung PM991 MZ9LQ256HBJQ

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Microsoft Surface Laptop 4 13 Review: Is AMD's Ryzen held back on purpose?

The smaller 13.5-inch model of the Surface Laptop 4 is now also available with an AMD Ryzen processor. Private customers, however, only get the base model with ...
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Microsoft Surface Pro 7 Plus in review: Tiger Lake provides a performance boost

Microsoft Surface Pro 7 Plus in review: Tiger Lake provides a performance boost

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Intel Core i5-1135G7 | Intel Iris Xe Graphics G7 80EUs | 12.30" | 796 g

Microsoft Surface Laptop 4 13 Ryzen 5: AMD Ryzen 5 4680U AMD Radeon RX Vega 7, 13.50", 1.3 kg
  External Review » Microsoft Surface Laptop 4 13 Ryzen 5

Microsoft Surface Pro 7 Plus: Intel Core i5-1135G7 Intel Iris Xe Graphics G7 80EUs, 12.30", 0.8 kg
  External Review » Microsoft Surface Pro 7 Plus

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > Benchmarks / Tech > Laptop harddisks (HDD, SSD) benchmarks > Samsung PM991 MZ9LQ256HBJQ SSD Benchmarks
Klaus Hinum (Update: 2021-03-17)