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Samsung PM9C1a MZAL8512HDLU vs Samsung PM9C1 MZVL81T0HELB-00BTW

Samsung PM9C1a MZAL8512HDLU

► remove from comparison PM9C1a MZAL8512HDLU

The Samsung PM9C1a MZAL81T0HDLB is a fast 1TB PCIe4 x4 SSD in the small  M.2 2242 form factor. The PM9C1a is the successor to the PM9B1 OEM SSSD and advertised as a value drive with improved efficiency.

Samsung PM9C1 MZVL81T0HELB-00BTW

PM9C1 MZVL81T0HELB-00BTW

The Samsung PM9C1 MZVL81T0HELB-00BTW is a 1-terabyte PCIe 4 x4 NVMe SSD. It appears the 22 by 80 drive was quietly launched as far back as mid 2020.

Its performance in AS SSD (3.98 GB/s for sequential reads and 2.16 GB/s for writes) as well as other popular benchmark is serviceable but not really impressive, if our December 2024 testing is any indication.

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Samsung PM9C1a MZAL8512HDLUSamsung PM9C1 MZVL81T0HELB-00BTW
TypeSSDSSD
SizeM.2 2242M.2 2280
Capacity512 GB1024 GB
InterfaceNVMeNVMe
Announced09.04.2024 01.06.2020
LinkSamsung PM9C1a MZAL8512HDLU

Benchmarks

Performance Rating - DiskSpd - PM9C1a MZAL8512HDLU
27.1 pt (31%)
Seagate ST1000LM014 Solid State Hybrid Drive
0.709 -97%
...
Kingston OM8PGP42048N-A0
26.4 -3%
Western Digital PC SN5000S SDEQNSJ-1T00
26.5 -2%
Rayson RS1D0TSSD710 1024 GB PCIe 4.0 NVMe
26.5 -2%
Samsung PM981a MZVLB1T0HBLR
26.6 -2%
Kingston OM8SEP1024Q-A0
26.7 -1%
WD PC SN740 512GB SDDQMQD-512G
26.9 -1%
Rayson RS512GSSD710 512 GB PCIe 4.0 NVMe
26.9 -1%
WD PC SN740 512GB SDDPMQD-512G-1101
26.9 -1%
Acer Predator SSD GM7000 2TB
27 0%
Samsung PM9C1a MZAL8512HDLU
27.1
WD PC SN560 SDDPNQE-1T00
27.1 0%
ADATA XPG Gammix S70 Blade 2TB
27.2 0%
Micron 2550 1TB
27.2 0%
SK hynix PC801 HFS512GEJ9X162N
27.3 1%
WDC PC SN730 SDBPNTY-1T00
27.4 1%
Kioxia BG5 KBG5AZNV1T02
27.5 1%
2x Kingston OM8PGP4256Q-A0 (RAID 0)
27.5 1%
Phison PS5019-E19 SSO1TBITC4-E19-V7
27.5 1%
GOFATOO P110E-512GB
27.6 2%
...
Kingston Fury Renegade G5
87.4 223%
0%
100%
Restrict / Search: Model: Max. age: years
Performance Rating - DiskSpd - PM9C1 MZVL81T0HELB-00BTW
26 pt (30%)
Seagate ST1000LM014 Solid State Hybrid Drive
0.709 -97%
...
Phison PS5013 PRO-X-1TB-G2R NVMe SSD
25.3 -3%
2x Micron 2300 2TB MTFDHBA2T0TDV (RAID 0)
25.5 -2%
Phison ESMP001TKB5C3
25.5 -2%
Micron 2550 512GB
25.6 -2%
Lexar NM610 Pro NM610P001T-HNNNG
25.6 -2%
511BS0512HB-TX01
25.6 -2%
WDC PC SN730 SDBPNTY-512G
25.6 -2%
WDC PC SN720 SDAQNTW-1T00
25.7 -1%
2x WDC PC SN730 SDBPNTY-1T00 (RAID 0)
25.9 0%
Samsung PM9C1 MZVL81T0HELB-00BTW
26
SK Hynix PC711 1TB HFS001TDE9X081N
26.1 0%
Samsung SSD PM981 MZVLB2T0HMLB
26.3 1%
Samsung SSD PM981 MZVLB1T0HALR
26.3 1%
YMTC PC300-1TB
26.3 1%
Intel SSD 760p SSDPEKKW010T8
26.3 1%
Kingston OM8PGP42048N-A0
26.4 2%
Western Digital PC SN5000S SDEQNSJ-1T00
26.5 2%
Rayson RS1D0TSSD710 1024 GB PCIe 4.0 NVMe
26.5 2%
Samsung PM981a MZVLB1T0HBLR
26.6 2%
...
Kingston Fury Renegade G5
87.4 236%
0%
100%
Restrict / Search: Model: Max. age: years
AS SSD - Copy Game
min: 1076.85     avg: 1347     median: 1136.1 (19%)     max: 1827.64 MB/s
min: 1367.51     avg: 1638     median: 1600.6 (27%)     max: 1944.97 MB/s
AS SSD - Copy Program
min: 354.37     avg: 509     median: 375.9 (14%)     max: 797.12 MB/s
min: 775.41     avg: 837     median: 814.1 (30%)     max: 920.43 MB/s
AS SSD - Copy ISO
min: 2282.75     avg: 2608     median: 2342.7 (21%)     max: 3197.73 MB/s
min: 2271.5     avg: 2820     median: 2933.7 (27%)     max: 3254.36 MB/s
AS SSD - Score Total
min: 3611     avg: 3963     median: 4099 (25%)     max: 4180 Points
min: 3137     avg: 5190     median: 3617 (22%)     max: 8735 Points
AS SSD - Score Write
min: 2040     avg: 2263     median: 2324 (32%)     max: 2426 Points
min: 1772     avg: 2602     median: 2196 (30%)     max: 4136 Points
AS SSD - Score Read
min: 1059     avg: 1161     median: 1211 (19%)     max: 1213 Points
min: 951     avg: 1745     median: 1048 (17%)     max: 3048 Points
AS SSD - Access Time Write *
min: 0.023     avg: 0.1     median: 0.1 (0%)     max: 0.074 ms
min: 0.021     avg: 0     median: 0.1 (0%)     max: 0.059 ms
AS SSD - Access Time Read *
min: 0.036     avg: 0.1     median: 0.1 (0%)     max: 0.078 ms
min: 0.061     avg: 0.1     median: 0.1 (0%)     max: 0.095 ms
AS SSD - 4K-64 Write
min: 1624.51     avg: 1819     median: 1822 (31%)     max: 2010 MB/s
min: 1372     avg: 2094     median: 1766.4 (30%)     max: 3345.54 MB/s
AS SSD - 4K-64 Read
min: 634.06     avg: 673     median: 687.7 (14%)     max: 697 MB/s
min: 498     avg: 1251     median: 640.6 (13%)     max: 2384.85 MB/s
AS SSD - 4K Write
min: 151.12     avg: 172.9     median: 156.9 (31%)     max: 210.74 MB/s
min: 184.1     avg: 198.4     median: 196.5 (38%)     max: 214.74 MB/s
AS SSD - 4K Read
min: 62.81     avg: 67.3     median: 65.3 (21%)     max: 73.78 MB/s
min: 55.8     avg: 62.7     median: 60 (19%)     max: 69.81 MB/s
AS SSD - Sequential Write
min: 2595     avg: 2715     median: 2640.2 (23%)     max: 2908.36 MB/s
min: 1843.96     avg: 3102     median: 2326.3 (21%)     max: 5791.27 MB/s
AS SSD - Sequential Read
min: 3623.36     avg: 4208     median: 4488 (35%)     max: 4512.58 MB/s
min: 3470.45     avg: 4307     median: 3989.4 (31%)     max: 5933.7 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K
min: 67.67     avg: 112.2     median: 118.5 (11%)     max: 150.3 MB/s
min: 145.2     avg: 176.4     median: 153.5 (14%)     max: 248.7 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K
min: 65.55     avg: 70.4     median: 67.7 (2%)     max: 77.99 MB/s
min: 58.2     avg: 66     median: 64.9 (2%)     max: 76.17 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5 Write Seq
min: 2398     avg: 2826     median: 2826 (15%)     max: 3254 MB/s
min: 3094     avg: 3746     median: 3348.5 (18%)     max: 5194 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5 Read Seq
min: 3131     avg: 3198     median: 3198 (38%)     max: 3265 MB/s
min: 3194     avg: 3478     median: 3443 (41%)     max: 3832 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K Q32T1
min: 182.2     avg: 311.4     median: 371 (12%)     max: 381 MB/s
min: 378.8     avg: 442.7     median: 428 (14%)     max: 537.8 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K Q32T1
min: 341.2     avg: 395.1     median: 378 (6%)     max: 466 MB/s
min: 423.6     avg: 532     median: 456 (7%)     max: 689.1 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write Seq Q32T1
min: 2986     avg: 3510     median: 3649 (24%)     max: 3896 MB/s
min: 3398     avg: 3983     median: 3471 (23%)     max: 6008 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read Seq Q32T1
min: 5119     avg: 5464     median: 5189 (28%)     max: 6085 MB/s
min: 5037     avg: 5483     median: 5060 (27%)     max: 7200 MB/s
CrystalDiskMark 5.2 / 6 - CDM 6 Write 4K Q8T8
348 MB/s (7%)
389 MB/s (8%)
CrystalDiskMark 5.2 / 6 - CDM 6 Read 4K Q8T8
863 MB/s (13%)
613 MB/s (9%)
DiskSpd - DiskSpd 4k_q1t1_write
min: 63.6     avg: 112.7     median: 119.2 (27%)     max: 155.3 MB/s
min: 131     avg: 163.5     median: 141.9 (33%)     max: 253 MB/s
DiskSpd - DiskSpd 4k_q1t1_read
min: 62.6     avg: 66.2     median: 63 (18%)     max: 73 MB/s
min: 52.7     avg: 60.1     median: 57.6 (17%)     max: 75.1 MB/s
DiskSpd - DiskSpd 4k_q32t16_write
min: 305     avg: 362.7     median: 386 (6%)     max: 397 MB/s
min: 309     avg: 1122     median: 365.5 (6%)     max: 2693 MB/s
DiskSpd - DiskSpd 4k_q32t16_read
min: 599     avg: 658     median: 672 (8%)     max: 703 MB/s
min: 529     avg: 1522     median: 580.5 (7%)     max: 4074 MB/s
DiskSpd - DiskSpd seq_write
min: 2477     avg: 2958     median: 2983 (29%)     max: 3414 MB/s
min: 2368     avg: 3239     median: 3132 (31%)     max: 4484 MB/s
DiskSpd - DiskSpd seq_read
min: 2565     avg: 2834     median: 2688 (35%)     max: 3250 MB/s
min: 2400     avg: 2982     median: 2963 (39%)     max: 3670 MB/s
DiskSpd - DiskSpd seq_q8t1_write
min: 3736     avg: 4431     median: 4715 (32%)     max: 4841 MB/s
min: 3358     avg: 3733     median: 3486.5 (24%)     max: 4989 MB/s
DiskSpd - DiskSpd seq_q8t1_read
min: 6068     avg: 6095     median: 6100 (38%)     max: 6118 MB/s
min: 4468     avg: 5298     median: 5039 (31%)     max: 7187 MB/s
DiskSpd - DiskSpd Loop seq_q8t1_read
min: 4368     avg: 5506     median: 6049 (37%)     max: 6101 MB/s
min: 3522     avg: 4955     median: 4924.5 (30%)     max: 7132 MB/s

Average Benchmarks Samsung PM9C1a MZAL8512HDLU → 100% n=33

Average Benchmarks Samsung PM9C1 MZVL81T0HELB-00BTW → 104% n=33

- Range of benchmark values for this graphics card
red legend - Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

Add one or more devices and compare

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v1.33
log 23. 06:41:28

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

#1 checking url part for id 4160 +0s ... 0s

#2 checking url part for id 4226 +0s ... 0s

#3 redirected to Ajax server, took 1755924088s time from redirect:0 +0s ... 0s

#4 did not recreate cache, as it is less than 5 days old! Created at Wed, 20 Aug 2025 19:29:53 +0200 +0s ... 0s

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

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

#7 getting avg benchmarks for device 4160 +0.007s ... 0.01s

#8 got single benchmarks 4160 +0.004s ... 0.014s

#9 getting avg benchmarks for device 4226 +0.004s ... 0.018s

#10 got single benchmarks 4226 +0.007s ... 0.025s

#11 got avg benchmarks for devices +0s ... 0.025s

#12 min, max, avg, median took s +0.123s ... 0.148s

#13 return log +0.001s ... 0.149s

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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)