Average Bench: 126% (171st of 1058)

Based on 982 user benchmarks.  Model: WDC PC SN520 SDAPNUW-256G-1102

Outstanding average bench

The WDC PC SN520 SDAPNUW-256G-1102 256GB averaged 25.9% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the WDC PC SN520 SDAPNUW-256G-1102 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 525MB/s
Avg. 4K-64Thread Read Speed 609MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPNUW-256G-1102 256GB is 95.9%. This is a particularly wide range which indicates that the WDC PC SN520 SDAPNUW-256G-1102 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 328MB/s
Avg. 4K Random Write Speed 88.6MB/s
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Average Bench

(Based on 982 samples)
Min Avg Max
326 Read 851 1,198
273 Write 793 1,156
290 Mixed 659 1,007
195 SusWrite 328 439
147% 658 MB/s
Min Avg Max
18.7 4K Read 32.8 43.5
39.2 4K Write 88.6 130
24 4K Mixed 45.6 63.4
155% 55.7 MB/s
Min Avg Max
244 DQ Read 609 852
122 DQ Write 460 792
160 DQ Mixed 525 727
395% 532 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
207GB free (System drive)
Firmware: 20180000
SusWrite @10s intervals: 572 413 411 411 419 418 MB/s
Read 1,186
Write 1,095
Mixed 985
SusWrite 441
208% 927 MB/s
4K Read 39.3
4K Write 111
4K Mixed 58.1
193% 69.5 MB/s
DQ Read 842
DQ Write 553
DQ Mixed 652
499% 682 MB/s
214GB free (System drive)
Firmware: 20180000
SusWrite @10s intervals: 489 413 405 415 416 407 MB/s
Read 1,173
Write 1,120
Mixed 989
SusWrite 424
208% 927 MB/s
4K Read 40.8
4K Write 114
4K Mixed 56.9
195% 70.4 MB/s
DQ Read 845
DQ Write 487
DQ Mixed 674
500% 669 MB/s
129GB free (System drive)
Firmware: 20180000
SusWrite @10s intervals: 393 330 392 350 344 321 MB/s
Read 1,193
Write 1,179
Mixed 1000
SusWrite 355
209% 932 MB/s
4K Read 40.7
4K Write 114
4K Mixed 58.2
197% 71.1 MB/s
DQ Read 789
DQ Write 436
DQ Mixed 571
436% 599 MB/s
107GB free (System drive)
Firmware: 20180000
SusWrite @10s intervals: 482 415 416 416 420 419 MB/s
Read 790
Write 1,044
Mixed 678
SusWrite 428
166% 735 MB/s
4K Read 40.4
4K Write 115
4K Mixed 52.7
190% 69.4 MB/s
DQ Read 706
DQ Write 543
DQ Mixed 659
484% 636 MB/s
55GB free (System drive)
Firmware: 20180000
SusWrite @10s intervals: 367 251 243 236 184 177 MB/s
Read 729
Write 692
Mixed 662
SusWrite 243
130% 581 MB/s
4K Read 41.3
4K Write 106
4K Mixed 58.1
193% 68.5 MB/s
DQ Read 854
DQ Write 675
DQ Mixed 713
548% 747 MB/s
114GB free (System drive)
Firmware: 20180000
SusWrite @10s intervals: 371 293 280 275 274 268 MB/s
Read 505
Write 500
Mixed 517
SusWrite 293
102% 454 MB/s
4K Read 43.5
4K Write 88
4K Mixed 61.5
191% 64.3 MB/s
DQ Read 840
DQ Write 658
DQ Mixed 695
535% 731 MB/s
96GB free (System drive)
Firmware: 20180000
SusWrite @10s intervals: 381 314 331 322 313 301 MB/s
Read 969
Write 615
Mixed 737
SusWrite 327
148% 662 MB/s
4K Read 28.5
4K Write 28.5
4K Mixed 34.9
103% 30.6 MB/s
DQ Read 537
DQ Write 46.6
DQ Mixed 85.1
114% 223 MB/s
78GB free (System drive)
Firmware: 20180000
SusWrite @10s intervals: 307 307 304 302 274 253 MB/s
Read 335
Write 302
Mixed 297
SusWrite 291
69% 306 MB/s
4K Read 33.5
4K Write 61.7
4K Mixed 38.3
132% 44.5 MB/s
DQ Read 434
DQ Write 376
DQ Mixed 520
358% 443 MB/s
982 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,256,414 SSDs tested.

Typical PC SN520 SDAPNUW-256G-1102 256GB Builds (Compare 1,459 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 12%
Tree trunk
Desktop
Desktop 58%
Gunboat
Workstation
Workstation 11%
Tree trunk

System: Asus VivoBook_ASUSLaptop X509DA_M509DA

EDIT WITH CUSTOM PC BUILDER

Popular PC SN520 SDAPNUW-256G-1102 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.

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.
  • - 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

 Best User Rated

The Best.
CPUGPUSSD
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Intel Core i5-11400F $260Nvidia RTX 3060-Ti $400Samsung 860 Evo 250GB $52
Intel Core i7-11700K $380Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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