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WDC

PC SN520 SDAPNUW-256G-1006 256GB

▲ 501 ▼

Release date ≈ Q4 2018.

Average Bench: 146% (124th of 1021)

Based on 5,925 user benchmarks.  Model: WDC PC SN520 SDAPNUW-256G-1006
Poor: 88%Average: 146% Great: 189%

Popular builds with this SSD

Outstanding average bench

The WDC PC SN520 SDAPNUW-256G-1006 256GB averaged 45.8% 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 599MB/s
Avg. 4K-64Thread Write Speed 659MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPNUW-256G-1006 256GB is 101%. 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 372MB/s
Avg. Sequential Mixed IO Speed 711MB/s
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Average Bench

(Based on 5,925 samples)
Rank 124146%
Min Avg Max
353 Read 900 1,198
299 Write 836 1,198
325 Mixed 711 1,007
231 SusWrite 372 445
158% 705 MB/s
Min Avg Max
21.3 4K Read 38.2 47.7
42.3 4K Write 112 169
25.7 4K Mixed 52.4 71.6
184% 67.6 MB/s
Min Avg Max
307 DQ Read 701 859
197 DQ Write 659 1,041
224 DQ Mixed 599 732
472% 653 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
95GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 414 459 422 427 424 391 MB/s
188% Outstanding
Read 1,179
Write 1,162
Mixed 976
SusWrite 423
210% 935 MB/s
4K Read 46.6
4K Write 164
4K Mixed 68.3
245% 92.9 MB/s
DQ Read 857
DQ Write 908
DQ Mixed 733
593% 833 MB/s
204GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 448 413 427 428 431 427 MB/s
182% Outstanding
Read 1,090
Write 991
Mixed 930
SusWrite 429
193% 860 MB/s
4K Read 44.3
4K Write 143
4K Mixed 65.5
227% 84.2 MB/s
DQ Read 867
DQ Write 1,014
DQ Mixed 693
591% 858 MB/s
206GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 569 465 430 431 432 431 MB/s
167% Outstanding
Read 1,183
Write 1170
Mixed 908
SusWrite 460
208% 930 MB/s
4K Read 35.3
4K Write 128
4K Mixed 55.6
192% 72.9 MB/s
DQ Read 610
DQ Write 817
DQ Mixed 724
544% 717 MB/s
191GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 545 423 422 423 421 425 MB/s
165% Outstanding
Read 1,190
Write 1,107
Mixed 998
SusWrite 443
209% 934 MB/s
4K Read 42.1
4K Write 111
4K Mixed 50.9
188% 67.9 MB/s
DQ Read 816
DQ Write 658
DQ Mixed 704
536% 726 MB/s
169GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 538 315 303 260 260 336 MB/s
155% Outstanding
Read 767
Write 724
Mixed 668
SusWrite 335
140% 624 MB/s
4K Read 43.5
4K Write 131
4K Mixed 62.9
216% 79.2 MB/s
DQ Read 856
DQ Write 807
DQ Mixed 721
572% 795 MB/s
90GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 257 281 317 249 234 247 MB/s
133% Outstanding
Read 927
Write 934
Mixed 675
SusWrite 264
157% 700 MB/s
4K Read 30.6
4K Write 104
4K Mixed 57
174% 63.9 MB/s
DQ Read 470
DQ Write 631
DQ Mixed 448
367% 516 MB/s
198GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 455 408 411 417 418 415 MB/s
111% Outstanding
Read 891
Write 792
Mixed 751
SusWrite 421
160% 714 MB/s
4K Read 29.4
4K Write 52.2
4K Mixed 40.6
124% 40.7 MB/s
DQ Read 215
DQ Write 245
DQ Mixed 370
240% 277 MB/s
190GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 337 320 297 292 292 293 MB/s
90.4% Outstanding
Read 325
Write 289
Mixed 306
SusWrite 305
69% 306 MB/s
4K Read 27.9
4K Write 58.7
4K Mixed 46.2
133% 44.3 MB/s
DQ Read 389
DQ Write 352
DQ Mixed 544
360% 428 MB/s
5,925 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 26,403,600 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 5,837 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 57%
Gunboat
Desktop
Desktop 93%
Nuclear submarine
Workstation
Workstation 76%
Battleship

System: HP OMEN by HP Obelisk Desktop 875-0xxx

CPU
Core i7-8700Intel  $344Bench 90%, 173,216 samples3,332x
Core i7-9700Intel  $360Bench 95%, 16,714 samples1,417x
Core i5-9400FIntel  $165Bench 88%, 86,351 samples367x
GPU
GTX 1060-3GBNvidia  $170Bench 54%, 363,198 samples1,322x
GTX 1660-TiNvidia  $280Bench 74%, 107,171 samples1,097x
RTX 2080Nvidia  $698Bench 117%, 166,494 samples817x
SSD
PC SN520 SDAPNUW-256G-1006 256GBWDCBench 146%, 5,925 samples351x
RAM
HP26D4U9D8ME-16X 1x16GBKingstonBench 48%, 2,889 samples2,157x
HP26D4U6D8ME-16X 1x16GBKingstonBench 47%, 1,962 samples1,750x
HP26D4U9S8ME-8X 2x8GBKingstonBench 80%, 1,252 samples424x
EDIT WITH CUSTOM PC BUILDER Value: 82% - Excellent Total price: $514

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

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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) May 2020 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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1021 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 i5-9400F $165Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $49
Intel Core i5-9600K $199Nvidia GTX 1650S (Super) $160Samsung 850 Evo 120GB $78
Intel Core i7-9700K $370Nvidia RTX 2070S (Super) $500Samsung 860 Evo 250GB $56
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $75SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Ultra Fit 32GB $16
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