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Samsung PM9A1a MZVL21T0HDLU vs Samsung PM9C1a MZAL81T0HDLB

Samsung PM9A1a MZVL21T0HDLU

► remove from comparison PM9A1a MZVL21T0HDLU

The Samsung OEM Client SSD PM9A1a 1TB, M.2 (MZVL21T0HDLU-00B07, OEM variant of the 980 Pro) is a fast M.2 2280 SSD which supports PCIe 4.0 x4. It most likely uses the Samsung Elpis (S4LV003) Controller with 8 channels and 512 MB LPDDR4. The memory modules are from Samsung (3D-NAND TLC 136 layers). The 1TB version is specified at 7000 MB/s and 5100 MB/s write (SLC cached). 

Samsung PM9C1a MZAL81T0HDLB

► remove from comparison PM9C1a MZAL81T0HDLB

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.

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Samsung PM9A1a MZVL21T0HDLUSamsung PM9C1a MZAL81T0HDLB
TypeSSDSSD
SizeM.2 2280M.2 2242
Capacity1024 GB1024 GB
InterfaceNVMeNVMe
Announced04.10.2023 09.04.2024
LinkSamsung PM9A1a MZVL21T0HDLUSamsung PM9C1a MZAL81T0HDLB

Benchmarks

Performance Rating - DiskSpd - PM9A1a MZVL21T0HDLU
31.2 pt (36%)
Seagate ST1000LM014 Solid State Hybrid Drive
0.717 -98%
...
Kioxia BG5 KBG50ZNT512G
30.2 -3%
Micron 2500 MTFDKBA512QGN
30.3 -3%
2x Samsung PM981a MZVLB1T0HBLR (RAID 0)
30.4 -3%
WD PC SN740 SDDQNQD-512G-1014
30.4 -3%
Acer N5000
30.5 -2%
Corsair MP600
30.9 -1%
Micron 2500 2TB MTFDKBA2T0QGN-1BN1AABGA
30.9 -1%
Kioxia EG6 1024GB
31 -1%
SK hynix PC801 HFS512GEJ9X101N BF
31.1 0%
Samsung PM9A1a MZVL21T0HDLU
31.2
Samsung SSD 970 EVO Plus 500GB
31.2 0%
Phison Electronics PS5012
31.3 0%
SK Hynix PVC10 HFS001TEM4X169N
31.5 1%
Kioxia XG8 KXG80ZNV1T02
31.7 2%
WDC PC SN810 2TB
31.7 2%
Silicon Motion PCIe-8 SSD 1TB
31.7 2%
Kioxia KXG8AZNV2T04 V2
31.8 2%
Kioxia XG8 KXG8AZNV1T02
31.8 2%
Samsung PM9A1a MZVL22T0HDLB
31.8 2%
...
Kingston Fury Renegade G5 4TB
87.8 181%
0%
100%
Restrict / Search: Model: Max. age: years
Performance Rating - DiskSpd - PM9C1a MZAL81T0HDLB
27.7 pt (32%)
Seagate ST1000LM014 Solid State Hybrid Drive
0.717 -97%
...
ADATA XPG Gammix S70 Blade 2TB
27.3 -1%
Samsung PM9C1a MZAL8512HDLU
27.3 -1%
Micron 2550 1TB
27.4 -1%
Samsung PM9C1b MZVL81T0HFLB-00BH1
27.5 -1%
Western Digital PC SN5000S SDEQNSJ-512G-1002
27.5 -1%
Phison PS5019-E19 SSO1TBITC4-E19-V7
27.6 0%
Western Digital PC SN5000S SDEPMSJ-512G
27.6 0%
SK hynix PC801 HFS512GEJ9X162N
27.6 0%
WDC PC SN730 SDBPNTY-1T00
27.6 0%
Samsung PM9C1a MZAL81T0HDLB
27.7
SK hynix PVC10 HFS256GEM4X182N
27.7 0%
GOFATOO P110E-512GB
27.7 0%
2x Kingston OM8PGP4256Q-A0 (RAID 0)
27.7 0%
Kioxia BG5 KBG5AZNV1T02
27.7 0%
Phison E12S-2TB-Phison-SSD-BICS4
27.8 0%
Western Digital PC SN5000S SDEQNSJ-1T00
28 1%
Kingston OM8TAP41024K1-A00
28 1%
Kingston OM8SEP4512Q-AA
28 1%
Kingston NV2 500GB SNV2S/500G
28.1 1%
...
Kingston Fury Renegade G5 4TB
87.8 217%
0%
100%
Restrict / Search: Model: Max. age: years
AS SSD - Copy Game
min: 322.79     avg: 1717     median: 1690 (28%)     max: 3442.64 MB/s
min: 415.25     avg: 1485     median: 1644.6 (27%)     max: 2276.44 MB/s
AS SSD - Copy Program
min: 222.39     avg: 768     median: 749.2 (28%)     max: 1329.32 MB/s
min: 314.97     avg: 799     median: 839.1 (31%)     max: 1114.7 MB/s
AS SSD - Copy ISO
min: 550.52     avg: 2295     median: 2353.2 (9%)     max: 4097.63 MB/s
min: 1150.23     avg: 2592     median: 2636.1 (10%)     max: 3657.85 MB/s
AS SSD - Score Total
min: 4533     avg: 6168     median: 5414 (33%)     max: 9056 Points
min: 3074     avg: 3858     median: 3845.5 (24%)     max: 4794 Points
AS SSD - Score Write
min: 2703     avg: 3289     median: 3324 (46%)     max: 4018 Points
min: 1576     avg: 2263     median: 2295 (32%)     max: 2825 Points
AS SSD - Score Read
min: 1283     avg: 1964     median: 1437 (23%)     max: 3368 Points
min: 867     avg: 1088     median: 1072 (17%)     max: 1351 Points
AS SSD - Access Time Write *
min: 0.019     avg: 0     median: 0 (0%)     max: 0.027 ms
min: 0.018     avg: 0     median: 0 (0%)     max: 0.089 ms
AS SSD - Access Time Read *
min: 0.025     avg: 0     median: 0 (0%)     max: 0.064 ms
min: 0.025     avg: 0.1     median: 0.1 (0%)     max: 0.142 ms
AS SSD - 4K-64 Write
min: 2278     avg: 2797     median: 2876 (49%)     max: 3338.79 MB/s
min: 1205.53     avg: 1841     median: 1833.7 (31%)     max: 2365.49 MB/s
AS SSD - 4K-64 Read
min: 705     avg: 1376     median: 844 (17%)     max: 2721.41 MB/s
min: 350     avg: 635     median: 660.8 (13%)     max: 903.86 MB/s
AS SSD - 4K Write
min: 146.2     avg: 179.6     median: 178.6 (35%)     max: 231.38 MB/s
min: 113.7     avg: 171.2     median: 163.8 (32%)     max: 227.86 MB/s
AS SSD - 4K Read
min: 63.9     avg: 71.2     median: 70.6 (22%)     max: 84.56 MB/s
min: 50.4     avg: 62.4     median: 62 (20%)     max: 75.47 MB/s
AS SSD - Sequential Write
min: 2443     avg: 3121     median: 2696 (24%)     max: 4482.43 MB/s
min: 1831     avg: 2530     median: 2610.4 (23%)     max: 2991.26 MB/s
AS SSD - Sequential Read
min: 4589.8     avg: 5163     median: 5245 (41%)     max: 5622.8 MB/s
min: 2633     avg: 3908     median: 4236.6 (33%)     max: 4734 MB/s
CrystalDiskMark 3.0 - 4K QD32 Write
min: 325.5     avg: 471.2     median: 400.4 (37%)     max: 687.8 MB/s
CrystalDiskMark 3.0 - 4K QD32 Read
min: 379.9     avg: 531     median: 431.7 (33%)     max: 780.5 MB/s
CrystalDiskMark 3.0 - 4K Write
min: 118.6     avg: 164.9     median: 137.2 (4%)     max: 238.9 MB/s
CrystalDiskMark 3.0 - 4K Read
min: 53.31     avg: 67.7     median: 66.5 (1%)     max: 83.36 MB/s
CrystalDiskMark 3.0 - 512K Write
min: 2158     avg: 2725     median: 2374 (26%)     max: 3642 MB/s
CrystalDiskMark 3.0 - 512K Read
min: 2292     avg: 2513     median: 2352 (50%)     max: 2894 MB/s
CrystalDiskMark 3.0 - Sequential Write
min: 2949     avg: 3430     median: 3157 (30%)     max: 4183 MB/s
CrystalDiskMark 3.0 - Sequential Read
min: 3428     avg: 3650     median: 3556 (40%)     max: 3966 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K
min: 115.8     avg: 226.7     median: 235.4 (21%)     max: 384.4 MB/s
min: 79.8     avg: 126.4     median: 119.9 (11%)     max: 167.9 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K
min: 67.06     avg: 153.2     median: 83.1 (2%)     max: 453.5 MB/s
min: 59.94     avg: 68.6     median: 66.8 (2%)     max: 79.06 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5 Write Seq
min: 2679     avg: 4112     median: 4342 (23%)     max: 5083 MB/s
min: 946.7     avg: 2757     median: 3026.5 (16%)     max: 3373 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5 Read Seq
min: 3386     avg: 4634     median: 4159 (44%)     max: 6833 MB/s
min: 2498     avg: 3062     median: 3117.5 (33%)     max: 3341 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K Q32T1
min: 323.6     avg: 450     median: 402 (8%)     max: 588 MB/s
min: 223     avg: 408.4     median: 415.4 (9%)     max: 643 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K Q32T1
min: 384.6     avg: 546     median: 439.5 (6%)     max: 766 MB/s
min: 278     avg: 406.5     median: 408.3 (6%)     max: 535.3 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write Seq Q32T1
min: 4991.1     avg: 5125     median: 5137 (34%)     max: 5225 MB/s
min: 2525     avg: 4147     median: 4233.5 (28%)     max: 4684 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read Seq Q32T1
min: 7054.3     avg: 7080     median: 7084.6 (38%)     max: 7093.5 MB/s
min: 5693     avg: 6111     median: 6173 (33%)     max: 6191 MB/s
CrystalDiskMark 5.2 / 6 - CDM 6 Write 4K Q8T8
min: 315.5     avg: 960     median: 385.8 (8%)     max: 2752.2 MB/s
min: 199.8     avg: 396.5     median: 391.5 (8%)     max: 603 MB/s
CrystalDiskMark 5.2 / 6 - CDM 6 Read 4K Q8T8
min: 1002.6     avg: 1502     median: 1051.3 (16%)     max: 2902.5 MB/s
min: 489     avg: 814     median: 812 (12%)     max: 1143 MB/s
DiskSpd - DiskSpd 4k_q1t1_write
min: 106.2     avg: 157.9     median: 136.3 (31%)     max: 270 MB/s
min: 69.4     avg: 126.6     median: 123.8 (28%)     max: 165.9 MB/s
DiskSpd - DiskSpd 4k_q1t1_read
min: 57.3     avg: 70.2     median: 68.9 (20%)     max: 95.2 MB/s
min: 43.4     avg: 60.2     median: 62.2 (18%)     max: 83.6 MB/s
DiskSpd - DiskSpd 4k_q32t16_write
min: 349     avg: 1147     median: 423 (6%)     max: 3717 MB/s
min: 230     avg: 416.4     median: 407 (6%)     max: 613 MB/s
DiskSpd - DiskSpd 4k_q32t16_read
min: 635     avg: 1545     median: 910 (11%)     max: 3896 MB/s
min: 387     avg: 815     median: 800.5 (10%)     max: 1444 MB/s
DiskSpd - DiskSpd seq_write
min: 2298     avg: 3259     median: 3199 (31%)     max: 4533 MB/s
min: 1475     avg: 2778     median: 2840 (27%)     max: 3445 MB/s
DiskSpd - DiskSpd seq_read
min: 3028     avg: 3467     median: 3463 (36%)     max: 4104 MB/s
min: 1993     avg: 2942     median: 3094 (33%)     max: 3434 MB/s
DiskSpd - DiskSpd seq_q8t1_write
min: 4913     avg: 4991     median: 4957 (34%)     max: 5265 MB/s
min: 3237     avg: 4117     median: 4247.5 (29%)     max: 4698 MB/s
DiskSpd - DiskSpd seq_q8t1_read
min: 6023     avg: 6878     median: 6999 (43%)     max: 7058 MB/s
min: 2467     avg: 5580     median: 6094 (38%)     max: 6188 MB/s
DiskSpd - DiskSpd Loop seq_q8t1_read
min: 5302     avg: 6745     median: 6980 (43%)     max: 7023 MB/s
min: 2422     avg: 5093     median: 5528 (34%)     max: 6170 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 PM9A1a MZVL21T0HDLU → 100% n=33

Samsung PM9C1a MZAL81T0HDLB → 83% n=33

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

Amazon Logo
  • $294.88
    Samsung PM9A1 MZ-VL21T100 1TB PCIe 4.0 NVMe 2280 Solid State Drive, 7000MB/s Read, 5200MB/s Write, 1000K IOPS Ran. Read, 850K IOPS Ran. Write - PM9A1
  • $109.00
    Samsung SSD PM9A1 M.2 NVMe 512GB
  • $320.00
    Samsung 870 EVO SATA III SSD 1TB 2.5” Internal Solid State Drive, Upgrade PC or Laptop Memory and Storage for IT Pros, Creators, Everyday Users, MZ-77E1T0B/AM
  • $957.00
    Samsung PM9A3 960GB M.2 (PCIE 4.0 x4) Nvme SSD MZ1L2960HCJR-00A07
  • $794.00
    Samsung PM9A3 960 GB Solid State Drive - 2.5 Internal - U.2 [PCI Express NVMe 4.0 x4]

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v1.35
log 03. 19:00:26

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

#1 checking url part for id 4067 +0s ... 0s

#2 checking url part for id 4144 +0s ... 0s

#3 redirected to Ajax server, took 1780506025s time from redirect:0 +0s ... 0s

#4 did not recreate cache, as it is less than 5 days old! Created at Mon, 01 Jun 2026 22:56:29 +0200 +0s ... 0s

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

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

#7 getting avg benchmarks for device 4067 +0.005s ... 0.008s

#8 got single benchmarks 4067 +0.009s ... 0.017s

#9 getting avg benchmarks for device 4144 +0.003s ... 0.02s

#10 got single benchmarks 4144 +0.012s ... 0.033s

#11 got avg benchmarks for devices +0s ... 0.033s

#12 min, max, avg, median took s +0.083s ... 0.116s

#13 return log +0.566s ... 0.682s

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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)