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Samsung PM991a MZ9LQ512HBLU-00BD1

MZ9LQ512HBLU

The Samsung PM991a MZ9LQ512HBLU-00BD1 is a small PCIe NVMe SSD in the M.2 2230 form factor. 

TypeSSD
SizeM.2 2230
Capacity512 GB
InterfaceNVMe
Announced02.10.2021

Benchmarks

Performance Rating - DiskSpd
22 pt (25%)
Seagate ST1000LM014 Solid State Hybrid Drive
0.687 -97%
...
Phison PS5013 311CD0512GB
21.6 -2%
Micron 2450 1TB MTFDKCD1T0TFK
21.7 -1%
YMTC PC005 Active 512GB
21.7 -1%
WD PC SN735 SDBPNHH-512G
21.7 -1%
Authorain NV900-1T
21.8 -1%
Samsung SSD PM981 MZVLB512HAJQ
21.8 -1%
Transcend M.2 SSD 2200S TS512GMTE220S
21.9 0%
Toshiba KBG40ZNV512G
21.9 0%
Faspeed P8-1TB-LB1
21.9 0%
Samsung PM991a MZ9LQ512HBLU-00BD1
22
WDC PC SN730 SDBQNTY-512GB
22.1 0%
SK Hynix PC401 512GB M.2 (HFS512GD9TNG)
22.1 0%
Kingston OM8SEP4512N-A0
22.1 0%
Lexar NM620 512GB
22.2 1%
Kingston SA2000M8500G
22.2 1%
Derlar FP3 NVMe M.2 SSD PCIe Gen 3.0X4 1 TB
22.3 1%
Micron 2400 MTFDKBA1T0QFM
22.3 1%
Kioxia BG6 KBG60ZNS512G
22.4 2%
Intel SSD 760p SSDPEKKW512G8
22.4 2%
...
Kingston Fury Renegade G5 8TB
88.2 301%
0%
100%
Restrict / Search: Model: Max. age: years
AS SSD - Copy Game
min: 835     avg: 894     median: 854 (14%)     max: 992.77 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
AS SSD - Copy Program
min: 281.6     avg: 376.5     median: 300.6 (11%)     max: 547.25 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
AS SSD - Copy ISO
min: 1163.3     avg: 1667     median: 1899 (7%)     max: 1938 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
AS SSD - Score Total
min: 2774     avg: 3323     median: 3522 (22%)     max: 3672 Points
+ 3 benchmarks and specifications   + Show comparison chart
AS SSD - Score Write
min: 1091     avg: 1209     median: 1192 (17%)     max: 1345 Points
+ 3 benchmarks and specifications   + Show comparison chart
AS SSD - Score Read
min: 1137     avg: 1421     median: 1560 (25%)     max: 1566 Points
+ 3 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Write *
min: 0.024     avg: 0     median: 0 (0%)     max: 0.044 ms
+ 3 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Read *
min: 0.079     avg: 0.1     median: 0.1 (0%)     max: 0.164 ms
+ 3 benchmarks and specifications   + Show comparison chart
AS SSD - 4K-64 Write
min: 759.51     avg: 899     median: 926 (16%)     max: 1012 MB/s
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AS SSD - 4K-64 Read
min: 823.86     avg: 1117     median: 1253 (25%)     max: 1273 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Write
min: 86.7     avg: 131.6     median: 147.8 (29%)     max: 160.19 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Read
min: 37.8     avg: 44.2     median: 46.8 (15%)     max: 48.12 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Write
min: 1708.34     avg: 1782     median: 1791 (16%)     max: 1847 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Read
min: 2555     avg: 2593     median: 2596 (20%)     max: 2629.16 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K
min: 119.9     avg: 158.3     median: 170.7 (15%)     max: 184.4 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K
min: 45.3     avg: 50.5     median: 52.7 (1%)     max: 53.54 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5 Write Seq
min: 1235     avg: 1528     median: 1571 (8%)     max: 1777 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5 Read Seq
min: 1686     avg: 1820     median: 1765 (20%)     max: 2009 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K Q32T1
min: 374.3     avg: 458.9     median: 486.3 (10%)     max: 516 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K Q32T1
min: 503     avg: 574     median: 548 (8%)     max: 671 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write Seq Q32T1
min: 1201     avg: 1557     median: 1553 (10%)     max: 1918 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read Seq Q32T1
min: 2216     avg: 2815     median: 3113 (17%)     max: 3115 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q1t1_write
min: 104     avg: 157.5     median: 183 (42%)     max: 185.5 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q1t1_read
min: 41.9     avg: 48.2     median: 49.3 (14%)     max: 53.4 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q32t16_write
min: 858     avg: 994     median: 1047 (16%)     max: 1078 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q32t16_read
min: 871     avg: 1208     median: 1362 (17%)     max: 1390 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_write
min: 1620     avg: 1697     median: 1706 (16%)     max: 1766 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_read
min: 1476     avg: 1784     median: 1873 (22%)     max: 2002 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_q8t1_write
min: 1188     avg: 1575     median: 1745 (12%)     max: 1791 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_q8t1_read
min: 2133     avg: 2711     median: 2971 (18%)     max: 3028 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd Loop seq_q8t1_read
min: 1772     avg: 1876     median: 1871 (11%)     max: 1986 MB/s
+ 3 benchmarks and specifications   + Show comparison chart
0100200300400500600700800900100011001200130014001500160017001800190020002100Tooltip
- Range of benchmark values
red legend - Average benchmark values
* Smaller numbers mean a higher performance

Add one or more devices and compare

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v1.35
log 02. 08:38:50

#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, 27 Feb 2026 01:44:18 +0100 +0.004s ... 0.004s

#4 composed specs +0.005s ... 0.01s

#5 did output specs +0s ... 0.01s

#6 getting avg benchmarks for device 3725 +0.019s ... 0.029s

#7 got single benchmarks 3725 +0.009s ... 0.038s

#8 got avg benchmarks for devices +0s ... 0.038s

#9 min, max, avg, median took s +3.409s ... 3.447s

#10 return log +0.124s ... 3.571s

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Klaus Hinum (Update: 2021-10- 2)