Average Bench: 202% (75th of 1040)

Based on 9,169 user benchmarks.  Models: NVMe SAMSUNG MZVKV512, SAMSUNG MZVPV512HDGL-00000, NVMe SAMSUNG MZVPV512, NVMe SM951 NVMe SAMSU, SAMSUNG MZVPV512HDGL-000H1

Outstanding average bench

The Samsung SM951 NVMe PCIe M.2 512GB averaged 102.0% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung SM951 NVMe PCIe M.2 512GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 500MB/s
Avg. 4K-64Thread Read Speed 952MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Samsung SM951 NVMe PCIe M.2 512GB is 118%. This is a particularly wide range which indicates that the Samsung SM951 NVMe PCIe M.2 512GB performs inconsistently under varying real world conditions.


Avg. 4K-64Thread Write Speed 339MB/s
Avg. 4K Random Write Speed 116MB/s

Average Bench

(Based on 9,169 samples)
Min Avg Max
1,078 Read 1,495 1,863
563 Write 1,081 1,488
585 Mixed 817 996
272 SusWrite 864 1,476
238% 1,064 MB/s
Min Avg Max
30.6 4K Read 43.5 51.6
68 4K Write 116 159
34.3 4K Mixed 54.6 67.8
198% 71.5 MB/s
Min Avg Max
542 DQ Read 952 1,234
227 DQ Write 339 428
338 DQ Mixed 500 627
408% 597 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
381GB free
Firmware: BXW7300Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 1095 1112 1125 1157 1159 1152 MB/s
Read 1,316
Write 1,169
Mixed 845
SusWrite 1,133
251% 1,116 MB/s
4K Read 49.2
4K Write 141
4K Mixed 66.1
234% 85.4 MB/s
DQ Read 1,232
DQ Write 428
DQ Mixed 626
516% 762 MB/s
168GB free (System drive)
Firmware: BXW7300Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 662 863 881 923 837 634 MB/s
Read 1,581
Write 876
Mixed 744
SusWrite 800
222% 1,000 MB/s
4K Read 44.7
4K Write 16.2
4K Mixed 22.8
106% 27.9 MB/s
DQ Read 964
DQ Write 84.8
DQ Mixed 324
287% 458 MB/s
64GB free (System drive)
Firmware: BXW74H0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 433 321 311 315 321 314 MB/s
Read 1,447
Write 815
Mixed 747
SusWrite 336
185% 836 MB/s
4K Read 38.8
4K Write 76.7
4K Mixed 43.7
155% 53.1 MB/s
DQ Read 570
DQ Write 284
DQ Mixed 425
316% 426 MB/s
9,169 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 33,129,849 SSDs tested.


AmazonUS $37424 mins
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Typical SM951 NVMe PCIe M.2 512GB Builds (Compare 430 builds) See popular component choices, score breakdowns and rankings.
Gaming 11%
Tree trunk
Desktop 66%
Battle cruiser
Workstation 10%
Tree trunk

System: Asus N501VW

EDIT WITH CUSTOM PC BUILDER Value: 17% - Very poor Total price: $374

Popular SM951 NVMe PCIe M.2 512GB systems:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) October 2020 SSD Rankings.

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.


1040 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
Intel Core i5-9600K $185Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $46
Intel Core i5-9400F $142Nvidia RTX 3080 $700Samsung 850 Evo 120GB $78
Intel Core i5-10600K $260Nvidia GTX 1650S (Super) $170Samsung 860 Evo 250GB $49
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $69SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $69SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $548SanDisk Extreme 16GB $28
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