Average Bench: 200% (72nd of 1016)

Based on 7,133 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 100.0% 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 483MB/s
Avg. 4K-64Thread Read Speed 910MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Samsung SM951 NVMe PCIe M.2 512GB is 126%. 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 341MB/s
Avg. 4K Random Write Speed 116MB/s

Average Bench

(Based on 7,133 samples)
Min Avg Max
745 Read 1,476 1,853
531 Write 1,067 1,491
516 Mixed 801 999
270 SusWrite 854 1,473
234% 1,050 MB/s
Min Avg Max
28.7 4K Read 44.5 51.4
60.7 4K Write 116 163
34.4 4K Mixed 54.7 68.5
199% 71.7 MB/s
Min Avg Max
296 DQ Read 910 1,231
190 DQ Write 341 429
185 DQ Mixed 483 627
395% 578 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
430GB free (System drive)
Firmware: BXW7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 1109 1195 1432 1176 1490 1499 MB/s
Read 1,438
Write 1,294
Mixed 857
SusWrite 1,317
276% 1,226 MB/s
4K Read 38.5
4K Write 105
4K Mixed 48
176% 63.9 MB/s
DQ Read 708
DQ Write 376
DQ Mixed 452
360% 512 MB/s
109GB free (System drive)
Firmware: BXW7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 536 430 361 345 334 311 MB/s
Read 1264
Write 809
Mixed 750
SusWrite 386
178% 802 MB/s
4K Read 50
4K Write 140
4K Mixed 65.9
234% 85.3 MB/s
DQ Read 856
DQ Write 270
DQ Mixed 388
332% 505 MB/s
354GB free
Firmware: BXW7300Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 460 526 463 520 130 485 MB/s
Read 176
Write 405
Mixed 257
SusWrite 430
72% 317 MB/s
4K Read 3.9
4K Write 7.7
4K Mixed 4.3
16% 5.3 MB/s
7,133 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 21,625,834 SSDs tested.


AmazonUS $24918 mins
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Typical SM951 NVMe PCIe M.2 512GB Builds (Compare 1,618 builds) See popular component choices, score breakdowns and rankings.
Gaming 15%
Tree trunk
Desktop 70%
Battle cruiser
Workstation 44%
Speed boat

System: Asus N501VW

EDIT WITH CUSTOM PC BUILDER Value: 22% - Poor Total price: $249

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.

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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) January 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.


1016 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 $218Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $43
Intel Core i5-9400F $155Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $370Nvidia RTX 2060 $340Samsung 850 Pro 512GB $204
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $42Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $643SanDisk Ultra Fit 32GB $16
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