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WDC

PC SN520 SDAPNUW-256G-1006 256GB

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Release date ≈ Q4 2018.

Average Bench: 144% (150th of 1058)

Based on 13,614 user benchmarks.  Model: WDC PC SN520 SDAPNUW-256G-1006
Poor: 89%Average: 144% Great: 188%

Popular builds with this SSD

Outstanding average bench

The WDC PC SN520 SDAPNUW-256G-1006 256GB averaged 43.6% 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 596MB/s
Avg. 4K-64Thread Write Speed 642MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPNUW-256G-1006 256GB is 99%. 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 338MB/s
Avg. Sequential Mixed IO Speed 698MB/s
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Average Bench

(Based on 13,614 samples)
Rank 150144%
Min Avg Max
516 Read 896 1,198
322 Write 846 1,198
333 Mixed 698 1,004
182 SusWrite 338 442
156% 694 MB/s
Min Avg Max
21.9 4K Read 37.4 48.3
49.7 4K Write 112 173
27.5 4K Mixed 53.4 72.1
184% 67.6 MB/s
Min Avg Max
376 DQ Read 713 858
198 DQ Write 642 1,068
230 DQ Mixed 596 734
469% 650 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
122GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 341 409 437 391 349 327 MB/s
152% Outstanding
Read 884
Write 698
Mixed 686
SusWrite 375
148% 661 MB/s
4K Read 39.5
4K Write 118
4K Mixed 57.9
196% 71.7 MB/s
DQ Read 722
DQ Write 752
DQ Mixed 706
539% 726 MB/s
170GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 464 342 323 336 311 305 MB/s
147% Outstanding
Read 935
Write 1,025
Mixed 515
SusWrite 347
158% 705 MB/s
4K Read 33.6
4K Write 89.7
4K Mixed 55.7
170% 59.7 MB/s
DQ Read 824
DQ Write 730
DQ Mixed 729
560% 761 MB/s
207GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 438 438 430 418 423 430 MB/s
135% Outstanding
Read 1,022
Write 828
Mixed 807
SusWrite 430
173% 772 MB/s
4K Read 32.8
4K Write 84
4K Mixed 48.6
156% 55.1 MB/s
DQ Read 596
DQ Write 261
DQ Mixed 612
405% 490 MB/s
55GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 299 211 285 210 204 202 MB/s
64.5% Good
Read 542
Write 497
Mixed 551
SusWrite 236
102% 457 MB/s
4K Read 14.1
4K Write 28.5
4K Mixed 17.5
59% 20 MB/s
DQ Read 289
DQ Write 167
DQ Mixed 250
180% 236 MB/s
13,614 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 44,171,174 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 5,271 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 79%
Battleship
Desktop
Desktop 90%
Aircraft carrier
Workstation
Workstation 81%
Aircraft carrier

System: HP OMEN 30L Desktop GT13-0xxx

CPU
Ryzen 7 3700XAMD  $305Bench 86%, 591,493 samples1,726x
Ryzen 5 3600AMD  $199Bench 83%, 842,939 samples1,292x
Core i7-10700KIntel  $277Bench 98%, 119,453 samples873x
GPU
RTX 2060Nvidia  $390Bench 88%, 456,761 samples1,409x
GTX 1660S (Super)Nvidia  $240Bench 71%, 268,091 samples1,105x
RTX 3080Nvidia  $700Bench 203%, 150,081 samples919x
SSD
PC SN520 SDAPNUW-256G-1006 256GBWDCBench 144%, 13,614 samples1,077x
RAM
HP32D4U8S8HC-8XR 2x8GBKingstonBench 83%, 1,890 samples1,453x
HP32D4U8D8HC-16X 2x16GBKingstonBench 98%, 867 samples640x
HP32D4U8S8HC-8XR 1x8GBKingstonBench 59%, 840 samples521x
EDIT WITH CUSTOM PC BUILDER Value: 67% - Good Total price: $695

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) June 2021 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

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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 i5-11400F $220Nvidia RTX 3070 $500Crucial MX500 250GB $45
Intel Core i5-11600K $259Nvidia RTX 3060-Ti $400Samsung 850 Evo 120GB $78
Intel Core i7-10700K $277Nvidia RTX 3080 $700Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $94SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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