Average Bench: 146% (119th of 1016)

Based on 1,095 user benchmarks.  Model: PC SN520 NVMe WDC 256GB

Outstanding average bench

The PC SN520 NVMe WDC 256GB averaged 46.3% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the PC SN520 NVMe WDC 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 611MB/s
Avg. 4K-64Thread Write Speed 598MB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the PC SN520 NVMe WDC 256GB is 79.2%. This is a particularly wide range which indicates that the PC SN520 NVMe WDC 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 406MB/s
Avg. 4K Random Write Speed 104MB/s
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Average Bench

(Based on 1,095 samples)
Min Avg Max
588 Read 907 1,191
529 Write 908 1,205
474 Mixed 799 1,093
294 SusWrite 406 446
169% 755 MB/s
Min Avg Max
24.7 4K Read 38.6 46.3
53.3 4K Write 104 147
30.5 4K Mixed 52.6 66
181% 65.2 MB/s
Min Avg Max
253 DQ Read 715 858
165 DQ Write 598 1,022
272 DQ Mixed 611 732
470% 641 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
127GB free (System drive)
Firmware: 20220012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 598 432 433 431 434 434 MB/s
Read 1,223
Write 1,174
Mixed 1,117
SusWrite 460
223% 993 MB/s
4K Read 48.5
4K Write 130
4K Mixed 67.6
229% 82.1 MB/s
DQ Read 856
DQ Write 738
DQ Mixed 723
562% 772 MB/s
78GB free (System drive)
Firmware: 20220012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 487 423 429 372 248 285 MB/s
Read 968
Write 674
Mixed 813
SusWrite 374
158% 707 MB/s
4K Read 43.8
4K Write 129
4K Mixed 63.1
216% 78.7 MB/s
DQ Read 860
DQ Write 896
DQ Mixed 730
590% 829 MB/s
78GB free (System drive)
Firmware: 20220012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 464 428 428 427 403 328 MB/s
Read 1,040
Write 965
Mixed 905
SusWrite 413
186% 831 MB/s
4K Read 40.2
4K Write 112
4K Mixed 56.5
193% 69.6 MB/s
DQ Read 861
DQ Write 875
DQ Mixed 724
584% 820 MB/s
144GB free (System drive)
Firmware: 20200012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 491 392 422 420 425 426 MB/s
Read 1,087
Write 935
Mixed 875
SusWrite 429
186% 831 MB/s
4K Read 41.5
4K Write 123
4K Mixed 58.7
203% 74.3 MB/s
DQ Read 683
DQ Write 660
DQ Mixed 669
503% 671 MB/s
208GB free (System drive)
Firmware: 20220012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 486 430 431 429 431 432 MB/s
Read 1,191
Write 1,199
Mixed 1,009
SusWrite 440
215% 960 MB/s
4K Read 41.7
4K Write 110
4K Mixed 59.7
198% 70.6 MB/s
DQ Read 609
DQ Write 398
DQ Mixed 531
388% 513 MB/s
183GB free (System drive)
Firmware: 20220012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 386 405 426 425 430 431 MB/s
Read 891
Write 923
Mixed 872
SusWrite 417
174% 776 MB/s
4K Read 31.1
4K Write 131
4K Mixed 60.5
194% 74.2 MB/s
DQ Read 774
DQ Write 409
DQ Mixed 692
487% 625 MB/s
159GB free (System drive)
Firmware: 20200012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 361 332 297 324 304 289 MB/s
Read 967
Write 818
Mixed 868
SusWrite 318
166% 743 MB/s
4K Read 42
4K Write 113
4K Mixed 59.7
200% 71.7 MB/s
DQ Read 42.9
DQ Write 114
DQ Mixed 59.6
51% 72.2 MB/s
97GB free (System drive)
Firmware: 20200012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 431 449 418 418 418 419 MB/s
Read 712
Write 806
Mixed 769
SusWrite 425
153% 678 MB/s
4K Read 37.9
4K Write 87.3
4K Mixed 51.2
169% 58.8 MB/s
DQ Read 113
DQ Write 344
DQ Mixed 702
400% 386 MB/s
1,095 MORE »

 Market Share (See Leaders)

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

Typical SN520 NVMe WDC 256GB Builds (Compare 8,107 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 15%
Surfboard
Desktop
Desktop 69%
Battle cruiser
Workstation
Workstation 39%
Jet ski

System: Dell G3 3579

EDIT WITH CUSTOM PC BUILDER

Popular SN520 NVMe WDC 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.

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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.
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  • - 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]

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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

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

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Intel Core i7-9700K $370Nvidia RTX 2060 $340Samsung 850 Pro 512GB $204
HDDRAMUSB
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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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