Samsung PM991 MZ9LQ512HALU

The Samsung PM991 MZ9LQ512HALU is a mid range PCIe M.2 2230 NVMe SSD.

Type	SSD
Size	M.2 2230
Capacity	512 GB
Interface	M.2
Announced	23.06.2020

Benchmarks

Performance Rating - DiskSpd

16.7 pt (20%)

Seagate ST1000LM014 Solid State Hybrid Drive

0.743 -96%

...

Transcend M.2 SSD 430S TS512GMTS430S

16 -4%

Toshiba XG5-P KXG50PNV2T04

16.2 -3%

WDC PC SN530 SDBPMPZ-265G

16.2 -3%

GSemi AZW GSDFN512TS3F1OGCX

16.3 -2%

WDC PC SN530 SDBPTPZ-512G

16.3 -2%

SK hynix BC511 HFM512GDHTNI-87A0B

16.4 -2%

Intel SSD 660p SSDPEKNW512G8

16.4 -2%

Toshiba KBG40ZNS256G NVMe

16.5 -1%

Gofatoo 256GB

16.6 -1%

Samsung PM991 MZ9LQ512HALU

16.7

SK hynix BC501 HFM512GDHTNG-8310A

16.8 1%

SK Hynix BC511 HFM512GDJTNI

16.8 1%

WDC PC SN530 SDBQNPZ-512G

16.8 1%

Apple SSD AP1024

16.8 1%

Toshiba KIOXIA KBG4AZNV512G M.2 2280 OPAL

16.9 1%

Netac S930E8/256GPN

16.9 1%

SK Hynix BC501 HFM512GDJTNG

17 2%

Silicon Motion AZW 256G M.2280 NVMe 4X 200725 D

17 2%

WDC PC SN530 SDBPTPZ-256G

17.1 2%

...

Samsung 9100 Pro 2 TB

82.7 395%

100%

AS SSD - Copy Game

min: 976 avg: 995 median: 994.5 (17%) max: 1013 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz	16 GB	976
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	1013

AS SSD - Copy Program

min: 401.9 avg: 515 median: 515 (19%) max: 628 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	401.9
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz	16 GB	628

AS SSD - Copy ISO

min: 1243 avg: 1264 median: 1263.5 (11%) max: 1284 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz	16 GB	1243
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	1284

AS SSD - Score Total

min: 2477 avg: 2507 median: 2506.5 (18%) max: 2536 Points

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz 2.0.6485.19676	16 GB	2477
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	2536

AS SSD - Score Write

min: 973 avg: 980 median: 980 (14%) max: 987 Points

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	973
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz 2.0.6485.19676	16 GB	987

AS SSD - Score Read

min: 1012 avg: 1023 median: 1023 (22%) max: 1034 Points

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz 2.0.6485.19676	16 GB	1012
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	1034

AS SSD - Access Time Write *

min: 0.027 avg: 0.1 median: 0.1 (0%) max: 0.095 ms

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz 2.0.6485.19676	16 GB	0.027
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	0.095

AS SSD - Access Time Read *

min: 0.098 avg: 0.1 median: 0.1 (0%) max: 0.191 ms

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	0.098
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz 2.0.6485.19676	16 GB	0.191

AS SSD - 4K-64 Write

min: 721 avg: 744 median: 743.5 (13%) max: 766 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	721
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz 2.0.6485.19676	16 GB	766

AS SSD - 4K-64 Read

min: 782 avg: 818 median: 818 (23%) max: 854 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz 2.0.6485.19676	16 GB	782
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	854

AS SSD - 4K Write

min: 128 avg: 134.8 median: 134.8 (26%) max: 141.6 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	128
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz 2.0.6485.19676	16 GB	141.6

AS SSD - 4K Read

min: 41.32 avg: 44.4 median: 44.4 (14%) max: 47.54 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	41.32
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz 2.0.6485.19676	16 GB	47.54

AS SSD - Sequential Write

min: 794 avg: 1014 median: 1014 (9%) max: 1234 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz 2.0.6485.19676	16 GB	794
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	1234

AS SSD - Sequential Read

min: 1386 avg: 1604 median: 1603.5 (13%) max: 1821 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	1386
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz 2.0.6485.19676	16 GB	1821

CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K

min: 118.2 avg: 130.2 median: 130.2 (12%) max: 142.1 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz 5.2.1 x64 1024 MiB [C: 18.1% (85.9/475.8 GiB)] (x5) [Interval=5 sec]	16 GB	118.2
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	142.1

CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K

min: 37.54 avg: 42 median: 42 (1%) max: 46.43 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz 5.2.1 x64 1024 MiB [C: 18.1% (85.9/475.8 GiB)] (x5) [Interval=5 sec]	16 GB	37.54
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	46.43

CrystalDiskMark 5.2 / 6 - CDM 5 Write Seq

min: 1017 avg: 1063 median: 1062.5 (6%) max: 1108 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz 5.2.1 x64 1024 MiB [C: 18.1% (85.9/475.8 GiB)] (x5) [Interval=5 sec]	16 GB	1017
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	1108

CrystalDiskMark 5.2 / 6 - CDM 5 Read Seq

min: 926 avg: 1274 median: 1274 (15%) max: 1622 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz 5.2.1 x64 1024 MiB [C: 18.1% (85.9/475.8 GiB)] (x5) [Interval=5 sec]	16 GB	926
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	1622

CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K Q32T1

min: 354.2 avg: 410.6 median: 410.6 (13%) max: 467 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz 5.2.1 x64 1024 MiB [C: 18.1% (85.9/475.8 GiB)] (x5) [Interval=5 sec]	16 GB	354.2
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	467

CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K Q32T1

min: 352.6 avg: 438.8 median: 438.8 (7%) max: 525 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz 5.2.1 x64 1024 MiB [C: 18.1% (85.9/475.8 GiB)] (x5) [Interval=5 sec]	16 GB	352.6
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	525

CrystalDiskMark 5.2 / 6 - CDM 5/6 Write Seq Q32T1

min: 1174 avg: 1189 median: 1188.5 (8%) max: 1203 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz 5.2.1 x64 1024 MiB [C: 18.1% (85.9/475.8 GiB)] (x5) [Interval=5 sec]	16 GB	1174
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	1203

CrystalDiskMark 5.2 / 6 - CDM 5/6 Read Seq Q32T1

min: 2261 avg: 2275 median: 2274.5 (12%) max: 2288 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz 5.2.1 x64 1024 MiB [C: 18.1% (85.9/475.8 GiB)] (x5) [Interval=5 sec]	16 GB	2261
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	2288

DiskSpd - DiskSpd 4k_q1t1_write

min: 117 avg: 128.5 median: 128.5 (30%) max: 140 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz	16 GB	117
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	140

DiskSpd - DiskSpd 4k_q1t1_read

min: 47.3 avg: 47.7 median: 47.7 (14%) max: 48 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz	16 GB	47.3
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	48

DiskSpd - DiskSpd 4k_q32t16_write

min: 361 avg: 562 median: 562 (10%) max: 763 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz	16 GB	361
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	763

DiskSpd - DiskSpd 4k_q32t16_read

min: 531 avg: 737 median: 737 (12%) max: 943 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz	16 GB	531
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	943

DiskSpd - DiskSpd seq_write

min: 1050 avg: 1097 median: 1097 (12%) max: 1144 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz	16 GB	1050
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	1144

DiskSpd - DiskSpd seq_read

min: 998 avg: 1174 median: 1173.5 (17%) max: 1349 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz	16 GB	998
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	1349

DiskSpd - DiskSpd seq_q8t1_write

min: 1122 avg: 1147 median: 1146.5 (8%) max: 1171 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	1122
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz	16 GB	1171

DiskSpd - DiskSpd seq_q8t1_read

min: 1942 avg: 2076 median: 2076 (13%) max: 2210 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	1942
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz	16 GB	2210

DiskSpd - DiskSpd Loop seq_q8t1_read

min: 1328 avg: 1753 median: 1753 (11%) max: 2178 MB/s

+ 2 benchmarks and specifications + Show comparison chart

Model	CPU	GPU	RAM	Value
Dell G5 15 SE 5505 P89F	R7 4800H	Radeon RX 5600M 1750 / 1500 MHz 6 GB	16 GB	1328
Microsoft Surface Laptop 4 13 i7	i7-1185G7 50 W / 30 W	Iris Xe G7 96EUs 1350 / 2000 MHz	16 GB	2178

- Range of benchmark values

- Average benchmark values
* Smaller numbers mean a higher performance

v1.33

log 17. 19:44:39

#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 Sat, 17 May 2025 18:08:33 +0200 +0.001s ... 0.001s

#4 composed specs +0.005s ... 0.006s

#5 did output specs +0s ... 0.006s

#6 getting avg benchmarks for device 3501 +0.018s ... 0.023s

#7 got single benchmarks 3501 +0.007s ... 0.03s

#8 got avg benchmarks for devices +0s ... 0.03s

#9 min, max, avg, median took s +0.842s ... 0.872s

#10 return log +0.001s ... 0.873s

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