Average Bench: 187% (86th of 1016)

Based on 3,378 user benchmarks.  Models: SAMSUNG MZHPV512HDGL-00000, SAMSUNG MZHPV512HDGL-000L1

Outstanding average bench

The Samsung SM951 AHCI PCIe M.2 512GB averaged 86.5% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung SM951 AHCI PCIe M.2 512GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 483MB/s
Avg. Sequential Read Speed 1,347MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Samsung SM951 AHCI PCIe M.2 512GB is 121%. This is a particularly wide range which indicates that the Samsung SM951 AHCI PCIe M.2 512GB performs inconsistently under varying real world conditions.


Avg. 4K-64Thread Write Speed 348MB/s
Avg. 4K Random Write Speed 107MB/s

Average Bench

(Based on 3,378 samples)
Min Avg Max
908 Read 1,347 1,564
610 Write 1,117 1,488
558 Mixed 812 998
253 SusWrite 925 1,500
235% 1,050 MB/s
Min Avg Max
23.8 4K Read 39.2 46.7
49.7 4K Write 107 155
25.8 4K Mixed 50 63.7
180% 65.5 MB/s
Min Avg Max
233 DQ Read 585 701
199 DQ Write 348 425
208 DQ Mixed 483 596
355% 472 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
295GB free (System drive)
Firmware: BXW2500Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 1468 1480 1463 1493 1495 1494 MB/s
Read 1,414
Write 1,477
Mixed 952
SusWrite 1,482
300% 1,331 MB/s
4K Read 39.6
4K Write 108
4K Mixed 57
190% 68.3 MB/s
DQ Read 699
DQ Write 391
DQ Mixed 579
422% 556 MB/s
3,378 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 21,624,497 SSDs tested.


AmazonUS $2902 years
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Typical SM951 AHCI PCIe M.2 512GB Builds (Compare 596 builds) See popular component choices, score breakdowns and rankings.
Gaming 13%
Tree trunk
Desktop 67%
Battle cruiser
Workstation 37%
Jet ski

System: Asus N501JW

EDIT WITH CUSTOM PC BUILDER Value: 19% - Very poor Total price: $290

Popular SM951 AHCI 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) 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 i5-9400F $155Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $43
Intel Core i5-9600K $218Nvidia 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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