Average Bench: 136% (146th of 1040)

Based on 1,168 user benchmarks.  Model: WDC PC SN520 SDAPNUW-256G-1014

Outstanding average bench

The WDC PC SN520 SDAPNUW-256G-1014 256GB averaged 36.4% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the WDC PC SN520 SDAPNUW-256G-1014 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 537MB/s
Avg. 4K-64Thread Read Speed 658MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPNUW-256G-1014 256GB is 98%. This is a particularly wide range which indicates that the WDC PC SN520 SDAPNUW-256G-1014 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 379MB/s
Avg. 4K Random Read Speed 34.4MB/s
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Average Bench

(Based on 1,168 samples)
Min Avg Max
387 Read 861 1,206
313 Write 847 1,212
345 Mixed 719 1,095
263 SusWrite 379 442
157% 701 MB/s
Min Avg Max
18.1 4K Read 34.4 46.4
48.7 4K Write 100 142
23.1 4K Mixed 49.3 66.2
168% 61.3 MB/s
Min Avg Max
259 DQ Read 658 855
161 DQ Write 540 1,022
160 DQ Mixed 537 731
419% 578 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
187GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 517 424 426 427 427 426 MB/s
Read 1,192
Write 1,020
Mixed 995
SusWrite 441
204% 912 MB/s
4K Read 44.1
4K Write 142
4K Mixed 65.6
226% 84.1 MB/s
DQ Read 829
DQ Write 1039
DQ Mixed 735
610% 868 MB/s
179GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 513 423 425 421 424 425 MB/s
Read 1,159
Write 1,032
Mixed 981
SusWrite 438
202% 902 MB/s
4K Read 43
4K Write 139
4K Mixed 63.1
220% 81.6 MB/s
DQ Read 858
DQ Write 1,001
DQ Mixed 730
605% 863 MB/s
192GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 375 416 408 418 416 418 MB/s
Read 1128
Write 1,151
Mixed 980
SusWrite 409
206% 917 MB/s
4K Read 32.1
4K Write 103
4K Mixed 45.4
161% 60.1 MB/s
DQ Read 817
DQ Write 833
DQ Mixed 476
454% 709 MB/s
135GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 421 421 377 306 317 347 MB/s
Read 1,041
Write 1,052
Mixed 920
SusWrite 365
189% 844 MB/s
4K Read 37.8
4K Write 116
4K Mixed 54.4
188% 69.3 MB/s
DQ Read 725
DQ Write 623
DQ Mixed 609
474% 652 MB/s
61GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 433 425 383 380 309 256 MB/s
Read 1,010
Write 1,027
Mixed 950
SusWrite 364
188% 838 MB/s
4K Read 38.6
4K Write 104
4K Mixed 50.8
179% 64.5 MB/s
DQ Read 658
DQ Write 514
DQ Mixed 608
449% 593 MB/s
173GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 346 310 319 391 308 300 MB/s
Read 971
Write 853
Mixed 804
SusWrite 329
165% 739 MB/s
4K Read 39.8
4K Write 109
4K Mixed 54.6
188% 67.9 MB/s
DQ Read 527
DQ Write 402
DQ Mixed 478
354% 469 MB/s
61GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 372 261 316 306 299 287 MB/s
Read 914
Write 993
Mixed 970
SusWrite 307
179% 796 MB/s
4K Read 37.2
4K Write 102
4K Mixed 50
175% 63.2 MB/s
DQ Read 649
DQ Write 507
DQ Mixed 592
439% 583 MB/s
200GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 309 324 317 325 312 314 MB/s
Read 342
Write 320
Mixed 327
SusWrite 317
74% 326 MB/s
4K Read 25.5
4K Write 52.8
4K Mixed 32.6
108% 37 MB/s
DQ Read 440
DQ Write 374
DQ Mixed 514
356% 443 MB/s
1,168 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 38,032,373 SSDs tested.

Typical PC SN520 SDAPNUW-256G-1014 256GB Builds (Compare 566 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 14%
Tree trunk
Desktop
Desktop 72%
Battleship
Workstation
Workstation 13%
Tree trunk

System: Acer Aspire A515-44

EDIT WITH CUSTOM PC BUILDER

Popular PC SN520 SDAPNUW-256G-1014 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.
  • - See speed test results from other users.
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  • - Explore your best upgrade options with a virtual PC build.
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  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) January 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

1040 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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The Best.
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Intel Core i5-9600K $219Nvidia RTX 3070 $500Samsung 850 Evo 120GB $78
Intel Core i5-10400F $161Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $40
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $29Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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