Average Bench: 158% (109th of 1016)

Based on 1,598 user benchmarks.  Model: SAMSUNG MZHPV128HDGM-00000

Outstanding average bench

The Samsung SM951 AHCI PCIe M.2 128GB averaged 57.9% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung SM951 AHCI PCIe M.2 128GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 351MB/s
Avg. Sequential Read Speed 1,335MB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the Samsung SM951 AHCI PCIe M.2 128GB is 76.6%. This is a particularly wide range which indicates that the Samsung SM951 AHCI PCIe M.2 128GB performs inconsistently under varying real world conditions.


Avg. 4K-64Thread Write Speed 232MB/s
Avg. Sustained Write Speed 490MB/s

Average Bench

(Based on 1,598 samples)
Min Avg Max
706 Read 1,335 1,591
323 Write 585 669
396 Mixed 589 712
234 SusWrite 490 646
166% 750 MB/s
Min Avg Max
29.1 4K Read 41.7 46.9
68.4 4K Write 117 150
33.7 4K Mixed 46.8 54.4
185% 68.5 MB/s
Min Avg Max
210 DQ Read 601 700
148 DQ Write 232 262
193 DQ Mixed 351 403
277% 394 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
80GB free (System drive)
Firmware: BXW2500Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 498 474 461 471 471 453 MB/s
Read 1,539
Write 490
Mixed 630
SusWrite 471
172% 783 MB/s
4K Read 45.5
4K Write 139
4K Mixed 54.8
213% 79.8 MB/s
DQ Read 700
DQ Write 251
DQ Mixed 344
289% 432 MB/s
55GB free (System drive)
Firmware: BXW2500Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 431 396 405 390 378 377 MB/s
Read 1,548
Write 656
Mixed 650
SusWrite 396
179% 812 MB/s
4K Read 47.7
4K Write 151
4K Mixed 55.6
223% 84.7 MB/s
DQ Read 701
DQ Write 255
DQ Mixed 399
316% 452 MB/s
65GB free (System drive)
Firmware: BXW2500Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 482 495 459 469 462 451 MB/s
Read 1,505
Write 620
Mixed 679
SusWrite 470
180% 818 MB/s
4K Read 40.9
4K Write 128
4K Mixed 50
194% 73.1 MB/s
DQ Read 697
DQ Write 249
DQ Mixed 391
310% 446 MB/s
1,598 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 21,546,157 SSDs tested.


AmazonUS $11020 months
Send price feedback
Typical SM951 AHCI PCIe M.2 128GB Builds (Compare 2,740 builds) See popular component choices, score breakdowns and rankings.
Gaming 58%
Desktop 85%
Aircraft carrier
Workstation 47%

Motherboard: Asus Z170M-PLUS - $128

EDIT WITH CUSTOM PC BUILDER Value: 60% - Above average Total price: $746

Popular SM951 AHCI PCIe M.2 128GB compatible motherboards:

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 i5-9600K $218Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $42
Intel Core i5-9400F $154Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $356Nvidia RTX 2060 $349Samsung 850 Pro 512GB $224
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 $653SanDisk Ultra Fit 32GB $16
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer Feedback