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Samsung PM9C1b MZVL8512HFLU-00BLL vs Samsung PM9C1b MZVL81T0HFLB-00BH1

Samsung PM9C1b MZVL8512HFLU-00BLL

► remove from comparison PM9C1b MZVL8512HFLU-00BLL

The Samsung PM9C1b MZVL8512HFLU-00BLL (MZ-VL8512T0D) is a 512-GB 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 March 2026.

Performance

AS SSD reports a sequential read rate of 5.18 GB/s, with writes a little slower at 4.6 GB/s. These are decent figures for a mid-range drive in early 2026. Its performance sustainability seems reasonably good, too.

Samsung PM9C1b MZVL81T0HFLB-00BH1

► remove from comparison 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.

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Samsung PM9C1b MZVL8512HFLU-00BLLSamsung PM9C1b MZVL81T0HFLB-00BH1
TypeSSDSSD
SizeM.2 2280M.2 2280
Capacity512 GB1000 GB
InterfaceNVMeNVMe
Announced25.09.2024 25.09.2024

Benchmarks

Performance Rating - DiskSpd - PM9C1b MZVL8512HFLU-00BLL
30.3 pt (35%)
Seagate ST1000LM014 Solid State Hybrid Drive
0.692 -98%
...
Acer N5000
29.7 -2%
WD PC SN740 SDDQNQD-512G-1014
29.7 -2%
Kioxia BG7 512 GB
29.9 -1%
Kingston OM8TAP42048K1-A00
30 -1%
Micron 2500 2TB MTFDKBA2T0QGN-1BN1AABGA
30 -1%
SK hynix PC801 HFS512GEJ9X101N BF
30.1 -1%
Kioxia EG6 1024GB
30.2 0%
Corsair MP600
30.2 0%
Samsung PM9A1a MZVL21T0HDLU
30.2 0%
Samsung PM9C1b MZVL8512HFLU-00BLL
30.3
WD PC SN7100S SDFQMSL-512G-2001
30.4 0%
Samsung SSD 970 EVO Plus 500GB
30.6 1%
SK Hynix PVC10 HFS001TEM4X169N
30.6 1%
WDC PC SN810 2TB
30.7 1%
Kioxia KXG8AZNV2T04 V2
30.8 2%
Samsung PM9A1a MZVL22T0HDLB
30.8 2%
Kioxia XG8 KXG8AZNV1T02
30.8 2%
Kioxia XG8 KXG80ZNV1T02
30.8 2%
Phison Electronics PS5012
30.9 2%
...
Kingston Fury Renegade G5 4TB
85.8 183%
0%
100%
Restrict / Search: Model: Max. age: years
Performance Rating - DiskSpd - PM9C1b MZVL81T0HFLB-00BH1
26.7 pt (31%)
Seagate ST1000LM014 Solid State Hybrid Drive
0.692 -97%
...
WD PC SN740 512GB SDDPMQD-512G-1101
26.3 -1%
WD PC SN560 SDDPNQE-1T00
26.4 -1%
WD PC SN740 512GB SDDQMQD-512G
26.4 -1%
Rayson RS512GSSD710 512 GB PCIe 4.0 NVMe
26.4 -1%
Acer Predator SSD GM7000 2TB
26.4 -1%
SK hynix PC801 HFS512GEJ9X162N
26.5 -1%
Samsung PM9C1a MZAL8512HDLU
26.5 -1%
ADATA XPG Gammix S70 Blade 2TB
26.6 0%
Micron 2550 1TB
26.6 0%
Samsung PM9C1b MZVL81T0HFLB-00BH1
26.7
2x Kingston OM8PGP4256Q-A0 (RAID 0)
26.7 0%
Samsung PM9C1a MZAL81T0HDLB
26.9 1%
SK hynix PVC10 HFS256GEM4X182N
26.9 1%
WDC PC SN730 SDBPNTY-1T00
27.1 1%
Phison PS5019-E19 SSO1TBITC4-E19-V7
27.1 1%
GOFATOO P110E-512GB
27.2 2%
Kioxia BG5 KBG5AZNV1T02
27.2 2%
YMTC PC42Q512GBG4Q
27.2 2%
Phison 1 TB ESR01TBTCCZ-27J
27.3 2%
...
Kingston Fury Renegade G5 4TB
85.8 221%
0%
100%
Restrict / Search: Model: Max. age: years
AS SSD - Copy Game
min: 344.77     avg: 1211     median: 1096 (18%)     max: 2285.21 MB/s
min: 480.16     avg: 1101     median: 993.7 (17%)     max: 1936.12 MB/s
AS SSD - Copy Program
min: 584.22     avg: 790     median: 809.6 (30%)     max: 1014.57 MB/s
min: 502.89     avg: 721     median: 756.7 (28%)     max: 868.97 MB/s
AS SSD - Copy ISO
min: 2109.51     avg: 2764     median: 2729.8 (10%)     max: 3522.43 MB/s
min: 2298.45     avg: 2765     median: 2883.5 (11%)     max: 2996.35 MB/s
AS SSD - Score Total
min: 3107     avg: 4479     median: 3820 (23%)     max: 8479 Points
min: 3268     avg: 4715     median: 5062 (31%)     max: 5466 Points
AS SSD - Score Write
min: 1798     avg: 2397     median: 1912 (27%)     max: 3910 Points
min: 1608     avg: 2808     median: 3125 (43%)     max: 3375 Points
AS SSD - Score Read
min: 911     avg: 1416     median: 1272 (20%)     max: 3047 Points
min: 1155     avg: 1305     median: 1330.5 (21%)     max: 1402 Points
AS SSD - Access Time Write *
min: 0.02     avg: 0     median: 0 (0%)     max: 0.064 ms
min: 0.022     avg: 0     median: 0 (0%)     max: 0.077 ms
AS SSD - Access Time Read *
min: 0.038     avg: 0.1     median: 0.1 (0%)     max: 0.211 ms
min: 0.038     avg: 0.1     median: 0.1 (0%)     max: 0.103 ms
AS SSD - 4K-64 Write
min: 1295     avg: 1932     median: 1501 (25%)     max: 3355 MB/s
min: 1165     avg: 2338     median: 2665 (45%)     max: 2856.06 MB/s
AS SSD - 4K-64 Read
min: 423     avg: 909     median: 692 (14%)     max: 2475 MB/s
min: 587     avg: 779     median: 800 (16%)     max: 927.71 MB/s
AS SSD - 4K Write
min: 94.9     avg: 159.5     median: 164.1 (32%)     max: 188.76 MB/s
min: 135.8     avg: 161.7     median: 160.8 (31%)     max: 189.4 MB/s
AS SSD - 4K Read
min: 44.2     avg: 59     median: 58.7 (19%)     max: 69.96 MB/s
min: 57.7     avg: 58.5     median: 58.4 (19%)     max: 59.5 MB/s
AS SSD - Sequential Write
min: 2066     avg: 3054     median: 3282 (29%)     max: 4601 MB/s
min: 2700     avg: 3087     median: 3146 (28%)     max: 3356.2 MB/s
AS SSD - Sequential Read
min: 3062     avg: 4481     median: 4869 (38%)     max: 5182 MB/s
min: 4161.24     avg: 4673     median: 4721.5 (37%)     max: 5086 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K
min: 122.7     avg: 137.7     median: 137.5 (12%)     max: 147.1 MB/s
min: 131     avg: 142.2     median: 140.4 (13%)     max: 156.9 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K
min: 58.9     avg: 65.5     median: 66.2 (2%)     max: 70.6 MB/s
min: 59.4     avg: 64.6     median: 63.7 (2%)     max: 71.5 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5 Write Seq
833 MB/s (4%)
2441 MB/s (13%)
CrystalDiskMark 5.2 / 6 - CDM 5 Read Seq
3184 MB/s (34%)
3432 MB/s (37%)
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K Q32T1
min: 411     avg: 453.4     median: 445 (9%)     max: 508 MB/s
min: 332     avg: 398.1     median: 413.5 (9%)     max: 433.2 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K Q32T1
min: 311     avg: 421.5     median: 447 (7%)     max: 462 MB/s
min: 375     avg: 433.3     median: 446 (7%)     max: 466 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write Seq Q32T1
min: 4967     avg: 5423     median: 5554 (37%)     max: 5804 MB/s
min: 4751     avg: 5097     median: 5012.5 (34%)     max: 5611 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read Seq Q32T1
min: 5990     avg: 6769     median: 6951 (37%)     max: 7021 MB/s
min: 7039     avg: 7101     median: 7079.5 (38%)     max: 7204 MB/s
CrystalDiskMark 5.2 / 6 - CDM 6 Write 4K Q8T8
min: 412     avg: 495.5     median: 479 (10%)     max: 612 MB/s
min: 380     avg: 405     median: 404 (8%)     max: 431 MB/s
CrystalDiskMark 5.2 / 6 - CDM 6 Read 4K Q8T8
min: 738     avg: 911     median: 847 (13%)     max: 1210 MB/s
min: 635     avg: 797     median: 744 (11%)     max: 1013 MB/s
DiskSpd - DiskSpd 4k_q1t1_write
min: 121.8     avg: 153.5     median: 165.6 (38%)     max: 176.4 MB/s
min: 96.7     avg: 119.3     median: 120.4 (28%)     max: 139.7 MB/s
DiskSpd - DiskSpd 4k_q1t1_read
min: 58.4     avg: 67.8     median: 71.1 (21%)     max: 74.6 MB/s
min: 43.7     avg: 52.8     median: 52.8 (15%)     max: 61.8 MB/s
DiskSpd - DiskSpd 4k_q32t16_write
min: 375     avg: 968     median: 471 (7%)     max: 3964 MB/s
min: 356     avg: 389.5     median: 385 (6%)     max: 432 MB/s
DiskSpd - DiskSpd 4k_q32t16_read
min: 614     avg: 1188     median: 689 (8%)     max: 3510 MB/s
min: 665     avg: 737     median: 697 (9%)     max: 889 MB/s
DiskSpd - DiskSpd seq_write
min: 2275     avg: 3250     median: 2953 (29%)     max: 5037 MB/s
min: 2024     avg: 2630     median: 2395 (23%)     max: 3704 MB/s
DiskSpd - DiskSpd seq_read
min: 2568     avg: 3026     median: 2923 (31%)     max: 3642 MB/s
min: 2490     avg: 2757     median: 2753.5 (29%)     max: 3031 MB/s
DiskSpd - DiskSpd seq_q8t1_write
min: 3323     avg: 4957     median: 5460 (37%)     max: 5948 MB/s
min: 4105     avg: 5322     median: 5672.5 (39%)     max: 5837 MB/s
DiskSpd - DiskSpd seq_q8t1_read
min: 5147     avg: 6386     median: 6905 (40%)     max: 6973 MB/s
min: 4747     avg: 6511     median: 7019 (40%)     max: 7258 MB/s
DiskSpd - DiskSpd Loop seq_q8t1_read
min: 4556     avg: 5874     median: 6136 (36%)     max: 7019 MB/s
min: 6453     avg: 6833     median: 6824.5 (40%)     max: 7228 MB/s
- Range of benchmark values for this graphics card
red legend - Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

Average Benchmarks

Samsung PM9C1b MZVL8512HFLU-00BLL → 100% n=33

Samsung PM9C1b MZVL81T0HFLB-00BH1 → 107% n=33

Average of the median scores above. 1 ... This benchmark is not used for the average calculation

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v1.35
log 02. 09:23:54

#0 ran 0s before starting gpusingle class +0s ... 0s

#1 checking url part for id 4359 +0s ... 0s

#2 checking url part for id 4318 +0s ... 0s

#3 redirected to Ajax server, took 1790925833s time from redirect:0 +0s ... 0s

#4 did not recreate cache, as it is less than 5 days old! Created at Wed, 30 Sep 2026 00:51:27 +0200 +0s ... 0s

#5 composed specs +0.002s ... 0.003s

#6 did output specs +0s ... 0.003s

#7 getting avg benchmarks for device 4359 +0.005s ... 0.008s

#8 got single benchmarks 4359 +0.007s ... 0.014s

#9 getting avg benchmarks for device 4318 +0.004s ... 0.018s

#10 got single benchmarks 4318 +0.004s ... 0.022s

#11 got avg benchmarks for devices +0s ... 0.022s

#12 min, max, avg, median took s +0.064s ... 0.086s

#13 return log +0.341s ... 0.427s

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> Expert reviews and news on laptops, smartphones and tech innovations > Benchmarks / Tech > HDD/SSD Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2023-07- 1)