Average Bench: 144% (150th of 1058)

Based on 3,272 user benchmarks.  Model: WDC PC SN520 SDAPNUW-256G-1202

Outstanding average bench

The WDC PC SN520 SDAPNUW-256G-1202 256GB averaged 43.5% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the WDC PC SN520 SDAPNUW-256G-1202 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 561MB/s
Avg. 4K-64Thread Write Speed 570MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPNUW-256G-1202 256GB is 106%. This is a particularly wide range which indicates that the WDC PC SN520 SDAPNUW-256G-1202 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 332MB/s
Avg. Sequential Mixed IO Speed 706MB/s
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Average Bench

(Based on 3,272 samples)
Min Avg Max
345 Read 948 1,202
286 Write 877 1,205
314 Mixed 706 1,017
210 SusWrite 332 439
160% 715 MB/s
Min Avg Max
18.9 4K Read 37.9 48.5
42.2 4K Write 114 175
25.2 4K Mixed 53.8 72
186% 68.4 MB/s
Min Avg Max
277 DQ Read 675 854
155 DQ Write 570 1,015
172 DQ Mixed 561 732
437% 602 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
119GB free (System drive)
Firmware: 20200000
SusWrite @10s intervals: 435 423 337 326 318 306 MB/s
Read 1,143
Write 1138
Mixed 970
SusWrite 358
202% 902 MB/s
4K Read 42.6
4K Write 122
4K Mixed 60.8
207% 75.2 MB/s
DQ Read 829
DQ Write 703
DQ Mixed 725
554% 752 MB/s
105GB free (System drive)
Firmware: 20200000
SusWrite @10s intervals: 355 278 352 286 272 278 MB/s
Read 794
Write 1,078
Mixed 569
SusWrite 304
154% 686 MB/s
4K Read 46.9
4K Write 163
4K Mixed 70
247% 93.4 MB/s
DQ Read 830
DQ Write 922
DQ Mixed 734
592% 829 MB/s
81GB free (System drive)
Firmware: 20200000
SusWrite @10s intervals: 407 257 262 250 246 237 MB/s
Read 1,116
Write 1,137
Mixed 957
SusWrite 277
195% 872 MB/s
4K Read 41.7
4K Write 128
4K Mixed 61
209% 76.8 MB/s
DQ Read 856
DQ Write 816
DQ Mixed 724
574% 799 MB/s
158GB free (System drive)
Firmware: 20200000
SusWrite @10s intervals: 361 309 321 353 303 323 MB/s
Read 1,179
Write 1104
Mixed 986
SusWrite 328
201% 899 MB/s
4K Read 38.4
4K Write 104
4K Mixed 56
185% 66.1 MB/s
DQ Read 628
DQ Write 534
DQ Mixed 639
463% 600 MB/s
120GB free (System drive)
Firmware: 20200000
SusWrite @10s intervals: 419 466 395 318 302 265 MB/s
Read 747
Write 772
Mixed 575
SusWrite 361
138% 614 MB/s
4K Read 42.6
4K Write 108
4K Mixed 59
198% 70 MB/s
DQ Read 853
DQ Write 332
DQ Mixed 667
474% 618 MB/s
196GB free (System drive)
Firmware: 20200000
SusWrite @10s intervals: 449 387 397 398 399 401 MB/s
Read 1,062
Write 926
Mixed 858
SusWrite 405
182% 813 MB/s
4K Read 21.8
4K Write 95.1
4K Mixed 42.8
138% 53.2 MB/s
DQ Read 634
DQ Write 418
DQ Mixed 538
398% 530 MB/s
195GB free (System drive)
Firmware: 20200000
SusWrite @10s intervals: 397 403 406 405 418 423 MB/s
Read 539
Write 392
Mixed 436
SusWrite 409
100% 444 MB/s
4K Read 15.9
4K Write 94.4
4K Mixed 26.4
108% 45.6 MB/s
DQ Read 678
DQ Write 290
DQ Mixed 515
373% 494 MB/s
3,272 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,207,617 SSDs tested.

Typical PC SN520 SDAPNUW-256G-1202 256GB Builds (Compare 1,839 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 15%
Tree trunk
Desktop
Desktop 79%
Battleship
Workstation
Workstation 15%
Tree trunk

System: Asus TUF Gaming FA506II_FA506II

EDIT WITH CUSTOM PC BUILDER

Popular PC SN520 SDAPNUW-256G-1202 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.
  • - 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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Intel Core i7-11700K $380Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
HDDRAMUSB
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Seagate Barracuda 2TB (2016) $72G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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