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WDC

PC SN520 SDAPNUW-256G-1006 256GB

▲ 501 ▼

Release date ≈ Q4 2018.

Average Bench: 149% (143rd of 1058)

Based on 15,417 user benchmarks.  Model: WDC PC SN520 SDAPNUW-256G-1006
Poor: 86%Average: 149% Great: 193%

Popular builds with this SSD

Outstanding average bench

The WDC PC SN520 SDAPNUW-256G-1006 256GB averaged 48.7% 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 602MB/s
Avg. 4K-64Thread Write Speed 621MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPNUW-256G-1006 256GB is 107%. 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 335MB/s
Avg. Sequential Mixed IO Speed 684MB/s
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Average Bench

(Based on 15,417 samples)
Rank 143149%
Min Avg Max
559 Read 936 1,196
229 Write 838 1,210
317 Mixed 684 1,007
178 SusWrite 335 447
156% 698 MB/s
Min Avg Max
19.9 4K Read 44.5 49.5
44.8 4K Write 119 182
23.1 4K Mixed 54.5 74.1
200% 72.6 MB/s
Min Avg Max
388 DQ Read 716 858
206 DQ Write 621 1,013
288 DQ Mixed 602 733
469% 646 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
166GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 451 444 429 427 416 419 MB/s
164% Outstanding
Read 1,091
Write 926
Mixed 600
SusWrite 431
170% 762 MB/s
4K Read 36.4
4K Write 129
4K Mixed 58.4
198% 74.6 MB/s
DQ Read 720
DQ Write 720
DQ Mixed 723
542% 721 MB/s
77GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 238 272 216 212 212 215 MB/s
153% Outstanding
Read 1148
Write 1126
Mixed 646
SusWrite 227
175% 787 MB/s
4K Read 35.1
4K Write 128
4K Mixed 48.9
184% 70.6 MB/s
DQ Read 786
DQ Write 865
DQ Mixed 714
568% 789 MB/s
66GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 457 408 297 286 283 273 MB/s
149% Outstanding
Read 883
Write 774
Mixed 726
SusWrite 334
152% 679 MB/s
4K Read 43.6
4K Write 139
4K Mixed 60
216% 80.9 MB/s
DQ Read 662
DQ Write 540
DQ Mixed 639
468% 613 MB/s
194GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 515 422 425 428 429 428 MB/s
148% Outstanding
Read 758
Write 640
Mixed 662
SusWrite 441
140% 625 MB/s
4K Read 40.2
4K Write 107
4K Mixed 55.9
189% 67.7 MB/s
DQ Read 837
DQ Write 602
DQ Mixed 682
520% 707 MB/s
53GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 471 423 423 424 400 351 MB/s
112% Outstanding
Read 703
Write 649
Mixed 660
SusWrite 416
136% 607 MB/s
4K Read 26.3
4K Write 60.1
4K Mixed 35.6
117% 40.7 MB/s
DQ Read 630
DQ Write 365
DQ Mixed 482
363% 492 MB/s
168GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 335 349 376 375 372 348 MB/s
96.3% Outstanding
Read 616
Write 346
Mixed 386
SusWrite 359
95% 427 MB/s
4K Read 13.4
4K Write 114
4K Mixed 18.2
104% 48.6 MB/s
DQ Read 499
DQ Write 364
DQ Mixed 310
264% 391 MB/s
15,417 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 51,170,732 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-1006 256GB Builds (Compare 7,913 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 79%
Battleship
Desktop
Desktop 88%
Aircraft carrier
Workstation
Workstation 81%
Aircraft carrier

System: HP OMEN 30L Desktop GT13-0xxx

CPU
Ryzen 7 3700XAMD  $340Bench 84%, 711,833 samples2,299x
Ryzen 5 3600AMD  $280Bench 82%, 1,038,752 samples1,670x
Core i7-10700KIntel  $330Bench 96%, 154,662 samples1,506x
GPU
RTX 2060Nvidia  $390Bench 89%, 520,358 samples1,836x
RTX 3080Nvidia  $700Bench 204%, 211,492 samples1,661x
GTX 1660S (Super)Nvidia  $240Bench 70%, 316,750 samples1,404x
SSD
PC SN520 SDAPNUW-256G-1006 256GBWDCBench 149%, 15,417 samples1,244x
RAM
HP32D4U8S8HC-8XR 2x8GBKingstonBench 83%, 3,066 samples1,905x
HP32D4U8D8HC-16X 2x16GBKingstonBench 97%, 1,701 samples1,102x
HP32D4U8D8HC-16XR 2x16GBKingstonBench 99%, 1,128 samples709x
EDIT WITH CUSTOM PC BUILDER Value: 66% - Good Total price: $730

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.

UserBenchmark of the month

Gaming Desktop ProGaming

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) January 2022 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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Speed Comparisons

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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

Storage Devices FAQ
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
What is sequential read speed?
What is incompressible data?
What is queue depth?
Solid State Drives
What is the SSD value for money rating?
What is 4K 64 thread write speed?
Can CPU power saving states (C1,C2,C3) impact SSD speed?
What is the effective SSD speed index?
How is the AS SSD write score calculated?
How is the AS SSD read score calculated?
How is the AS SSD total score calculated?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-12600K $295Nvidia RTX 3060-Ti $400Crucial MX500 250GB $50
Intel Core i5-12400F $184Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i5-11600K $245Nvidia RTX 3080 $700Samsung 850 Evo 120GB $200
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $63SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $74SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $71G.SKILL Trident Z DDR4 3200 C14 4x16GB $470SanDisk Ultra Fit 32GB $16
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