Average Bench: 186% (103rd of 1058)

Based on 4,958 user benchmarks.  Models: SAMSUNG MZHPV512HDGL-00000, SAMSUNG MZHPV512HDGL-000L1

Outstanding average bench

The Samsung SM951 AHCI PCIe M.2 512GB averaged 85.9% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung SM951 AHCI PCIe M.2 512GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 488MB/s
Avg. Sequential Read Speed 1,344MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Samsung SM951 AHCI PCIe M.2 512GB is 115%. This is a particularly wide range which indicates that the Samsung SM951 AHCI PCIe M.2 512GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Write Speed 344MB/s
Avg. 4K Random Write Speed 103MB/s
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Average Bench

(Based on 4,958 samples)
Min Avg Max
725 Read 1,344 1,555
506 Write 1,086 1,490
539 Mixed 797 986
272 SusWrite 920 1,487
232% 1,037 MB/s
Min Avg Max
27.4 4K Read 39.6 45.3
44.8 4K Write 103 143
27.3 4K Mixed 50 61.2
178% 64.1 MB/s
Min Avg Max
277 DQ Read 603 701
142 DQ Write 344 425
187 DQ Mixed 488 593
359% 478 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
307GB free (System drive)
Firmware: BXW2500Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 798 912 953 930 878 911 MB/s
Read 1,430
Write 1,177
Mixed 753
SusWrite 897
238% 1,064 MB/s
4K Read 40.4
4K Write 107
4K Mixed 51.1
183% 66.2 MB/s
DQ Read 700
DQ Write 340
DQ Mixed 538
395% 526 MB/s
332GB free
Firmware: BXW2500Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 1087 445 460 893 653 401 MB/s
Read 1,290
Write 1,241
Mixed 775
SusWrite 656
222% 990 MB/s
4K Read 30.6
4K Write 105
4K Mixed 61.4
180% 65.6 MB/s
DQ Read 697
DQ Write 424
DQ Mixed 587
430% 569 MB/s
168GB free (System drive)
Firmware: BXW2500Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 578 435 420 433 432 431 MB/s
Read 1,379
Write 808
Mixed 790
SusWrite 455
190% 858 MB/s
4K Read 40.5
4K Write 134
4K Mixed 51.4
198% 75.5 MB/s
DQ Read 692
DQ Write 316
DQ Mixed 496
370% 502 MB/s
67GB free (System drive)
Firmware: BXW2500Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 918 835 230 227 293 498 MB/s
Read 1,208
Write 377
Mixed 568
SusWrite 500
146% 663 MB/s
4K Read 39.7
4K Write 99.7
4K Mixed 48.5
175% 62.6 MB/s
DQ Read 526
DQ Write 237
DQ Mixed 392
288% 385 MB/s
218GB free (System drive)
Firmware: BXW2500Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 395 323 456 327 399 303 MB/s
Read 1,407
Write 778
Mixed 737
SusWrite 367
182% 822 MB/s
4K Read 37
4K Write 63.5
4K Mixed 43.5
145% 48 MB/s
DQ Read 679
DQ Write 231
DQ Mixed 188
209% 366 MB/s
420GB free (System drive)
Firmware: BXW2500Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 725 164 156 156 707 510 MB/s
Read 112
Write 280
Mixed 148
SusWrite 403
54% 236 MB/s
4K Read 3.2
4K Write 8.8
4K Mixed 4.7
16% 5.57 MB/s
DQ Read 304
DQ Write 238
DQ Mixed 202
170% 248 MB/s
4,958 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,299,915 SSDs tested.

 Prices

AmazonUS $2903 years
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Typical SM951 AHCI PCIe M.2 512GB Builds (Compare 322 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 8%
Tree trunk
Desktop
Desktop 65%
Destroyer
Workstation
Workstation 8%
Tree trunk

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.

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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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - 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.
Solid State Drive Rankings (Price vs Performance) September 2021 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]

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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.

 Comments

1058 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

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Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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