Average Bench: 139% (178th of 1080)

Based on 2,393 user benchmarks.  Model: WDC PC SN520 SDAPNUW-256G

Outstanding average bench

The WDC PC SN520 SDAPNUW-256G 256GB averaged 38.7% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the WDC PC SN520 SDAPNUW-256G 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 625MB/s
Avg. 4K-64Thread Write Speed 663MB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPNUW-256G 256GB is 77.1%. This is a particularly wide range which indicates that the WDC PC SN520 SDAPNUW-256G 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 328MB/s
Avg. Sequential Mixed IO Speed 670MB/s
ADVERTISEMENT

Average Bench

(Based on 2,393 samples)
Min Avg Max
597 Read 826 1,136
306 Write 789 1,106
380 Mixed 670 961
187 SusWrite 328 447
146% 653 MB/s
Min Avg Max
20.3 4K Read 37.3 44.7
42.6 4K Write 102 140
22.1 4K Mixed 50.6 65.1
175% 63.4 MB/s
Min Avg Max
326 DQ Read 754 863
180 DQ Write 663 968
228 DQ Mixed 625 735
491% 681 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
100GB free
Firmware: 20140000
SusWrite @10s intervals: 638 439 444 400 376 378 MB/s
Read 1,195
Write 1,221
Mixed 1,006
SusWrite 446
217% 967 MB/s
4K Read 41.5
4K Write 104
4K Mixed 58.1
193% 68 MB/s
DQ Read 860
DQ Write 884
DQ Mixed 736
591% 827 MB/s
79GB free (System drive)
Firmware: 20140000
SusWrite @10s intervals: 325 297 237 229 227 226 MB/s
Read 1,118
Write 965
Mixed 923
SusWrite 257
182% 816 MB/s
4K Read 40.7
4K Write 104
4K Mixed 56.4
189% 66.9 MB/s
DQ Read 854
DQ Write 685
DQ Mixed 738
561% 759 MB/s
166GB free (System drive)
Firmware: 20140000
SusWrite @10s intervals: 517 427 426 427 424 428 MB/s
Read 800
Write 965
Mixed 641
SusWrite 441
160% 712 MB/s
4K Read 32.1
4K Write 110
4K Mixed 47.5
168% 63.3 MB/s
DQ Read 668
DQ Write 786
DQ Mixed 734
551% 730 MB/s
155GB free (System drive)
Firmware: 20140000
SusWrite @10s intervals: 409 308 321 316 315 313 MB/s
Read 672
Write 632
Mixed 636
SusWrite 330
128% 568 MB/s
4K Read 38.1
4K Write 89.4
4K Mixed 52
172% 59.8 MB/s
DQ Read 834
DQ Write 728
DQ Mixed 685
540% 749 MB/s
134GB free
Firmware: 20170000
SusWrite @10s intervals: 355 369 383 390 381 399 MB/s
Read 585
Write 563
Mixed 596
SusWrite 379
120% 531 MB/s
4K Read 36.7
4K Write 113
4K Mixed 45.5
174% 65 MB/s
DQ Read 660
DQ Write 499
DQ Mixed 671
477% 610 MB/s
2,393 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 76,155,078 SSDs tested

Typical PC SN520 SDAPNUW-256G 256GB Builds (Compare 1,454 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 12%
Tree trunk
Desktop
Desktop 69%
Battle cruiser
Workstation
Workstation 11%
Tree trunk

Motherboard: MSI MS-17C5

EDIT WITH CUSTOM PC BUILDER

Popular PC SN520 SDAPNUW-256G 256GB compatible motherboards:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute

Welcome to our 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 value for money 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) June 2024 SSD Rankings

Welcome to our 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]

ADVERTISEMENT

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

1080 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

Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
Why don’t youtubers promote UserBenchmark?
We don't pay youtubers, so they don't praise us. Moreover, our data exposes youtubers that promote overpriced/inferior products.
Why does UserBenchmark have negative trustpilot reviews?
The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark popular with users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-12400F $110Nvidia RTX 4060 $291WD Black SN850X M.2 2TB $145
Intel Core i5-12600K $174Nvidia RTX 4060-Ti $385WD Black SN850X M.2 1TB $89
Intel Core i5-13600K $260Nvidia RTX 4070 $549Crucial T700 M.2 4TB $369
Today's hottest deals
If you buy something via a price link, UserBenchmark may earn a commission
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback