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WDC

PC SN520 SDAPNUW-256G-1002 256GB

▲ 505 ▼

Release date ≈ Q4 2018.

Average Bench: 141% (167th of 1072)

Based on 16,774 user benchmarks.  Model: WDC PC SN520 SDAPNUW-256G-1002
Poor: 86%Average: 141% Great: 187%

Popular builds with this SSD

Outstanding average bench

The WDC PC SN520 SDAPNUW-256G-1002 256GB averaged 40.7% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the WDC PC SN520 SDAPNUW-256G-1002 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 594MB/s
Avg. 4K-64Thread Read Speed 721MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPNUW-256G-1002 256GB is 101%. This is a particularly wide range which indicates that the WDC PC SN520 SDAPNUW-256G-1002 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 329MB/s
Avg. Sequential Mixed IO Speed 685MB/s
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Average Bench

(Based on 16,774 samples)
Rank 167141%
Min Avg Max
534 Read 884 1,187
300 Write 798 1,188
335 Mixed 685 1,012
180 SusWrite 329 445
151% 674 MB/s
Min Avg Max
22.1 4K Read 43 48.5
37.2 4K Write 102 164
20.8 4K Mixed 51.1 69.8
184% 65.2 MB/s
Min Avg Max
397 DQ Read 721 858
202 DQ Write 584 973
247 DQ Mixed 594 734
461% 633 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
77GB free
Firmware: 20110000
SusWrite @10s intervals: 322 110 113 105 115 108 MB/s
137% Outstanding
Read 1,099
Write 1,096
Mixed 942
SusWrite 145
184% 820 MB/s
4K Read 35.2
4K Write 102
4K Mixed 49.7
171% 62.2 MB/s
DQ Read 842
DQ Write 552
DQ Mixed 708
525% 701 MB/s
95GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 308 304 324 295 304 284 MB/s
118% Outstanding
Read 643
Write 449
Mixed 396
SusWrite 303
100% 448 MB/s
4K Read 28.3
4K Write 93.2
4K Mixed 49.7
156% 57.1 MB/s
DQ Read 760
DQ Write 359
DQ Mixed 376
327% 498 MB/s
75GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 339 352 273 294 277 268 MB/s
113% Outstanding
Read 662
Write 917
Mixed 739
SusWrite 300
148% 655 MB/s
4K Read 27.6
4K Write 65.2
4K Mixed 39
126% 43.9 MB/s
DQ Read 746
DQ Write 560
DQ Mixed 382
359% 563 MB/s
128GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 277 271 270 227 235 242 MB/s
112% Outstanding
Read 508
Write 398
Mixed 490
SusWrite 254
93% 413 MB/s
4K Read 32.5
4K Write 81.8
4K Mixed 46.2
152% 53.5 MB/s
DQ Read 700
DQ Write 620
DQ Mixed 665
497% 661 MB/s
184GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 467 413 411 399 418 399 MB/s
110% Outstanding
Read 695
Write 900
Mixed 701
SusWrite 418
153% 679 MB/s
4K Read 30.5
4K Write 52.5
4K Mixed 39.2
124% 40.7 MB/s
DQ Read 544
DQ Write 271
DQ Mixed 402
300% 406 MB/s
16,774 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 73,438,433 SSDs tested

Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Typical PC SN520 SDAPNUW-256G-1002 256GB Builds (Compare 3,139 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 9%
Tree trunk
Desktop
Desktop 69%
Battle cruiser
Workstation
Workstation 8%
Tree trunk

System: Asus ROG Strix G531GT_G531GT

CPU
Core i7-9750HIntelBench 73%, 328,182 samples1,899x
Core i5-9300HIntelBench 65%, 116,682 samples723x
Core i5-9300HIntelBench 68%, 23,588 samples517x
GPU
UHD Graphics 630IntelBench 5%, 506,702 samples1,664x
GTX 1650 (Mobile)NvidiaBench 41%, 92,838 samples1,475x
SSD
PC SN520 SDAPNUW-256G-1002 256GBWDCBench 141%, 16,774 samples425x
RAM
HMA81GS6JJR8N-VK 1x8GBHynixBench 40%, 48,644 samples550x
M471A2K43DB1-CTD 1x16GBSamsungBench 42%, 21,753 samples341x
M471A1K43DB1-CTD 1x8GBSamsungBench 40%, 54,121 samples304x
EDIT WITH CUSTOM PC BUILDER

Popular PC SN520 SDAPNUW-256G-1002 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) December 2023 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.

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 Frequently Asked Questions

Storage Devices FAQ
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ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $270Nvidia RTX 4060 $295Crucial MX500 250GB $30
Intel Core i5-12400F $146Nvidia RTX 4060-Ti $360Samsung 850 Evo 120GB $80
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Seagate Barracuda 2TB (2016) $50G.SKILL Trident Z DDR4 3200 C14 4x16GB $357SanDisk Ultra Fit 32GB $16
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