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Samsung PM9C1b MZVL81T0HFLB-00BH1

PM9C1b MZVL81T0HFLB-00BH1

The Samsung PM9C1b MZVL81T0HFLB-00BH1 is a 1-TB NVMe PCIe 4 x4 SSD that never received an official launch; supposedly, PM9C1b drives are based on the same hardware as 990 Evo Plus models but are meant for OEMs rather than general consumers.

The 22 by 80 format drive first became available in 2024, with Notebookcheck editors only getting their hands on one in September 2025.

Performance

AS SSD reports a sequential read rate of 4.6 GB/s, with writes a quarter slower at 3.25 GB/s. These are decent figures for a lower mid-range drive in late 2025. Its performance sustainability proved reasonably good, as long as one ignores a curious dip at the very beginning.

TypeSSD
SizeM.2 2280
Capacity1000 GB
InterfaceNVMe
Announced25.09.2024

Benchmarks

Performance Rating - DiskSpd
25.7 pt (29%)
Seagate ST1000LM014 Solid State Hybrid Drive
0.687 -97%
...
Samsung PM9C1 MZVL81T0HELB-00BTW
25 -3%
WD PC SN740 SDDQMQD-1T00
25.2 -2%
YMTC PC300-1TB
25.2 -2%
Kioxia XG8 KXG80ZNV2T04
25.3 -2%
Kingston OM8SEP1024Q-A0
25.4 -1%
Intel SSD 760p SSDPEKKW010T8
25.4 -1%
Rayson RS512GSSD710 512 GB PCIe 4.0 NVMe
25.4 -1%
Rayson RS1D0TSSD710 1024 GB PCIe 4.0 NVMe
25.5 -1%
WDC PC SN730 SDBPNTY-1T00
25.6 0%
Samsung PM9C1b MZVL81T0HFLB-00BH1
25.7
Kingston OM8PGP42048N-A0
25.7 0%
Phison E12S-2TB-Phison-SSD-BICS4
25.8 0%
WD PC SN740 512GB SDDPMQD-512G-1101
26 1%
WD PC SN560 SDDPNQE-1T00
26.2 2%
Phison PS5019-E19 SSO1TBITC4-E19-V7
26.2 2%
GOFATOO P110E-512GB
26.2 2%
WD PC SN740 512GB SDDQMQD-512G
26.2 2%
Kingston OM8SEP4512Q-AA
26.3 2%
SK hynix PC801 HFS512GEJ9X162N
26.3 2%
...
Kingston Fury Renegade G5 8TB
88.2 243%
0%
100%
Restrict / Search: Model: Max. age: years
AS SSD - Copy Game
min: 480.16     avg: 983     median: 983 (16%)     max: 1485.91 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Copy Program
min: 502.89     avg: 630     median: 629.7 (23%)     max: 756.42 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Copy ISO
min: 2298.45     avg: 2559     median: 2559.5 (10%)     max: 2820.54 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Score Total
min: 3268     avg: 4176     median: 4176 (26%)     max: 5084 Points
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Score Write
min: 1608     avg: 2327     median: 2327 (32%)     max: 3046 Points
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Score Read
min: 1155     avg: 1270     median: 1269.5 (20%)     max: 1384 Points
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Write *
min: 0.022     avg: 0     median: 0 (0%)     max: 0.03 ms
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Read *
min: 0.038     avg: 0.1     median: 0.1 (0%)     max: 0.098 ms
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K-64 Write
min: 1165     avg: 1849     median: 1848.5 (31%)     max: 2532 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K-64 Read
min: 587     avg: 727     median: 726.5 (14%)     max: 866 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Write
min: 138.5     avg: 164     median: 164 (32%)     max: 189.4 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Read
min: 58.8     avg: 59.2     median: 59.2 (19%)     max: 59.5 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Write
min: 3043     avg: 3146     median: 3146 (28%)     max: 3249 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Read
min: 4595     avg: 4841     median: 4840.5 (38%)     max: 5086 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K
min: 131     avg: 144     median: 144 (13%)     max: 156.9 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K
min: 59.4     avg: 65.5     median: 65.5 (2%)     max: 71.5 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K Q32T1
min: 332     avg: 378     median: 378 (8%)     max: 424 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K Q32T1
min: 375     avg: 409     median: 409 (6%)     max: 443 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write Seq Q32T1
min: 4751     avg: 5181     median: 5181 (35%)     max: 5611 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read Seq Q32T1
min: 7039     avg: 7122     median: 7121.5 (38%)     max: 7204 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 6 Write 4K Q8T8
min: 380     avg: 392     median: 392 (8%)     max: 404 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 6 Read 4K Q8T8
min: 635     avg: 824     median: 824 (12%)     max: 1013 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q1t1_write
min: 96.7     avg: 103.9     median: 103.9 (24%)     max: 111 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q1t1_read
min: 51.7     avg: 52.8     median: 52.8 (15%)     max: 53.9 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q32t16_write
min: 356     avg: 363.5     median: 363.5 (5%)     max: 371 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q32t16_read
min: 665     avg: 777     median: 777 (10%)     max: 889 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_write
min: 2463     avg: 3084     median: 3083.5 (30%)     max: 3704 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_read
min: 2540     avg: 2786     median: 2785.5 (33%)     max: 3031 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_q8t1_write
min: 4105     avg: 4928     median: 4927.5 (34%)     max: 5750 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_q8t1_read
min: 4747     avg: 6003     median: 6002.5 (37%)     max: 7258 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd Loop seq_q8t1_read
min: 6637     avg: 6933     median: 6932.5 (43%)     max: 7228 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
0100200300400500600700800900100011001200130014001500160017001800190020002100220023002400250026002700280029003000310032003300340035003600370038003900400041004200430044004500460047004800490050005100520053005400550056005700580059006000610062006300640065006600670068006900700071007200Tooltip
- 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 03. 22:03:29

#0 ran 1s 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, 03 Jan 2026 00:31:37 +0100 +0.001s ... 0.001s

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

#5 did output specs +0s ... 0.005s

#6 getting avg benchmarks for device 4318 +0.018s ... 0.023s

#7 got single benchmarks 4318 +0.008s ... 0.031s

#8 got avg benchmarks for devices +0s ... 0.031s

#9 min, max, avg, median took s +0.938s ... 0.969s

#10 return log +0.001s ... 0.97s

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Klaus Hinum (Update: 2025-10- 6)