Average Bench: 185% (92nd of 1026)

Based on 7,081 user benchmarks.  Model: NVMe SAMSUNG MZVPV256

Outstanding average bench

The Samsung SM951 NVMe PCIe M.2 256GB averaged 85.2% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung SM951 NVMe PCIe M.2 256GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 446MB/s
Avg. 4K-64Thread Read Speed 907MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Samsung SM951 NVMe PCIe M.2 256GB is 115%. This is a particularly wide range which indicates that the Samsung SM951 NVMe PCIe M.2 256GB performs inconsistently under varying real world conditions.


Avg. 4K-64Thread Write Speed 294MB/s
Avg. Sustained Write Speed 602MB/s

Average Bench

(Based on 7,081 samples)
Min Avg Max
742 Read 1,517 1,868
357 Write 891 1,224
412 Mixed 648 854
238 SusWrite 602 1,111
203% 914 MB/s
Min Avg Max
29.7 4K Read 52 52.6
44.7 4K Write 114 169
28.3 4K Mixed 50.2 64.3
204% 72.1 MB/s
Min Avg Max
408 DQ Read 907 1,226
150 DQ Write 294 388
152 DQ Mixed 446 572
370% 549 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
158GB free (System drive)
Firmware: BXW7300Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 817 803 795 797 747 770 MB/s
Read 1,813
Write 1,112
Mixed 741
SusWrite 788
247% 1,114 MB/s
4K Read 43.2
4K Write 121
4K Mixed 53.7
198% 72.7 MB/s
DQ Read 975
DQ Write 316
DQ Mixed 536
424% 609 MB/s
62GB free (System drive)
Firmware: BXW7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 432 397 379 385 388 361 MB/s
Read 1,698
Write 556
Mixed 638
SusWrite 390
180% 820 MB/s
4K Read 41.5
4K Write 134
4K Mixed 51.7
200% 75.7 MB/s
DQ Read 1,157
DQ Write 262
DQ Mixed 422
385% 614 MB/s
112GB free (System drive)
Firmware: BXW7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 774 786 738 770 743 722 MB/s
Read 1,413
Write 1,134
Mixed 677
SusWrite 755
222% 995 MB/s
4K Read 42
4K Write 90.7
4K Mixed 50.3
176% 61 MB/s
DQ Read 890
DQ Write 337
DQ Mixed 518
408% 582 MB/s
7,081 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 29,419,242 SSDs tested.


EbayUS $442 mins
AmazonUS $12912 hrs
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Typical SM951 NVMe PCIe M.2 256GB Builds (Compare 1,437 builds) See popular component choices, score breakdowns and rankings.
Gaming 44%
Speed boat
Desktop 79%
Workstation 57%

System: Asus G752VY

EDIT WITH CUSTOM PC BUILDER Value: 45% - Average Total price: $44

Popular SM951 NVMe PCIe M.2 256GB 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) August 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.


Added n/a ago.


2 years ago.

Exceptional performance for OEM

1026 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 $195Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $45
Intel Core i5-9400F $156Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $335Nvidia RTX 2070S (Super) $510Samsung 860 Evo 250GB $46
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $69SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Extreme 16GB $24
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