Average Bench: 146% (116th of 1011)

Based on 1,817 user benchmarks.  Model: WDC PC SN520 SDAPNUW-256G-1006

Outstanding average bench

The WDC PC SN520 SDAPNUW-256G-1006 256GB averaged 46.1% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the WDC PC SN520 SDAPNUW-256G-1006 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 595MB/s
Avg. 4K-64Thread Write Speed 666MB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPNUW-256G-1006 256GB is 78.3%. This is a particularly wide range which indicates that the WDC PC SN520 SDAPNUW-256G-1006 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 406MB/s
Avg. Sequential Mixed IO Speed 697MB/s
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Average Bench

(Based on 1,817 samples)
Min Avg Max
573 Read 839 1,173
469 Write 759 1,112
456 Mixed 697 961
272 SusWrite 406 447
151% 675 MB/s
Min Avg Max
22.5 4K Read 38 46.7
52.5 4K Write 114 161
27.7 4K Mixed 52.9 68.4
186% 68.4 MB/s
Min Avg Max
180 DQ Read 698 859
149 DQ Write 666 1,065
137 DQ Mixed 595 733
470% 653 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
206GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 482 443 421 424 424 423 MB/s
Read 1,189
Write 1,116
Mixed 1,000
SusWrite 436
210% 935 MB/s
4K Read 40.2
4K Write 119
4K Mixed 59.9
201% 73.1 MB/s
DQ Read 840
DQ Write 702
DQ Mixed 727
557% 757 MB/s
197GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 505 422 423 432 430 430 MB/s
Read 652
Write 654
Mixed 630
SusWrite 440
134% 594 MB/s
4K Read 45.9
4K Write 159
4K Mixed 64.9
237% 90 MB/s
DQ Read 851
DQ Write 919
DQ Mixed 732
593% 834 MB/s
65GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 509 326 272 230 214 217 MB/s
Read 1,063
Write 968
Mixed 906
SusWrite 294
181% 808 MB/s
4K Read 45
4K Write 143
4K Mixed 66.6
229% 84.7 MB/s
DQ Read 862
DQ Write 621
DQ Mixed 732
549% 738 MB/s
197GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 405 466 418 418 422 421 MB/s
Read 762
Write 632
Mixed 585
SusWrite 425
135% 601 MB/s
4K Read 44.9
4K Write 150
4K Mixed 53.7
216% 82.8 MB/s
DQ Read 840
DQ Write 644
DQ Mixed 684
527% 723 MB/s
152GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 476 419 412 412 408 410 MB/s
Read 677
Write 629
Mixed 596
SusWrite 423
131% 581 MB/s
4K Read 33.9
4K Write 142
4K Mixed 65.2
210% 80.3 MB/s
DQ Read 854
DQ Write 783
DQ Mixed 714
564% 784 MB/s
1,817 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 17,666,076 SSDs tested.

Typical PC SN520 SDAPNUW-256G-1006 256GB Builds (Compare 332 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 15%
Surfboard
Desktop
Desktop 68%
Battle cruiser
Workstation
Workstation 36%
Jet ski

System: HP ProBook 450 G6

EDIT WITH CUSTOM PC BUILDER

Popular PC SN520 SDAPNUW-256G-1006 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.
  • - 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.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) September 2019 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

1011 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
Intel Core i5-9400F $140Nvidia GTX 1660 $220Samsung 850 Evo 250GB $70
Intel Core i5-9600K $225Nvidia GTX 1660-Ti $278Samsung 850 Evo 500GB $105
AMD Ryzen 5 3600 $195Nvidia RTX 2060S (Super) $429Samsung 850 Pro 256GB $203
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $70SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $34G.SKILL Trident Z DDR4 3200 C14 4x16GB $606SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $64Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 16GB $24
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