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WDC

PC SN520 SDAPNUW-256G-1006 256GB

▲ 501 ▼

Release date ≈ Q4 2018.

Average Bench: 148% (118th of 1016)

Based on 3,434 user benchmarks.  Model: WDC PC SN520 SDAPNUW-256G-1006
Poor: 98%Average: 148% Great: 177%

Popular builds with this SSD

Outstanding average bench

The WDC PC SN520 SDAPNUW-256G-1006 256GB averaged 47.5% 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 630MB/s
Avg. 4K-64Thread Write Speed 717MB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPNUW-256G-1006 256GB is 78.9%. 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 396MB/s
Avg. Sequential Mixed IO Speed 706MB/s
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Average Bench

(Based on 3,434 samples)
Rank 118148%
Min Avg Max
487 Read 854 1,181
414 Write 807 1,163
398 Mixed 706 979
282 SusWrite 396 444
155% 691 MB/s
Min Avg Max
23.2 4K Read 37.5 46.9
46 4K Write 112 163
27.5 4K Mixed 53.3 69.3
184% 67.7 MB/s
Min Avg Max
333 DQ Read 725 859
261 DQ Write 717 1,065
339 DQ Mixed 630 735
498% 691 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
155GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 473 481 432 433 432 432 MB/s
177% Outstanding
Read 1,089
Write 1,014
Mixed 923
SusWrite 447
195% 868 MB/s
4K Read 44.7
4K Write 145
4K Mixed 64.8
228% 84.9 MB/s
DQ Read 858
DQ Write 739
DQ Mixed 735
568% 777 MB/s
184GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 490 437 410 414 414 414 MB/s
171% Outstanding
Read 1,042
Write 928
Mixed 830
SusWrite 430
181% 808 MB/s
4K Read 41.4
4K Write 114
4K Mixed 59
198% 71.4 MB/s
DQ Read 853
DQ Write 998
DQ Mixed 733
606% 861 MB/s
190GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 457 444 423 423 424 422 MB/s
160% Outstanding
Read 654
Write 667
Mixed 583
SusWrite 432
131% 584 MB/s
4K Read 44.5
4K Write 152
4K Mixed 66
232% 87.4 MB/s
DQ Read 856
DQ Write 763
DQ Mixed 699
555% 773 MB/s
142GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 477 468 421 420 421 421 MB/s
154% Outstanding
Read 781
Write 772
Mixed 658
SusWrite 438
149% 662 MB/s
4K Read 34.7
4K Write 114
4K Mixed 56.2
185% 68.5 MB/s
DQ Read 741
DQ Write 995
DQ Mixed 717
584% 818 MB/s
129GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 519 412 346 338 310 339 MB/s
145% Outstanding
Read 1,026
Write 828
Mixed 731
SusWrite 377
165% 741 MB/s
4K Read 32.7
4K Write 108
4K Mixed 44.8
164% 61.7 MB/s
DQ Read 457
DQ Write 930
DQ Mixed 727
543% 705 MB/s
166GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 398 419 418 419 419 420 MB/s
112% Outstanding
Read 756
Write 406
Mixed 462
SusWrite 416
114% 510 MB/s
4K Read 30.7
4K Write 60.7
4K Mixed 37.8
127% 43.1 MB/s
DQ Read 439
DQ Write 341
DQ Mixed 183
193% 321 MB/s
3,434 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 21,680,567 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 3,865 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 57%
Gunboat
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 71%
Battleship

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

CPU
Core i7-8700Intel  $370Bench 89%, 150,954 samples2,539x
Core i7-9700Intel  $336Bench 95%, 8,452 samples725x
Core i5-9400FIntel  $155Bench 82%, 50,931 samples163x
GPU
GTX 1060-3GBNvidia  $170Bench 54%, 310,635 samples1,049x
GTX 1660-TiNvidia  $260Bench 74%, 70,544 samples618x
RTX 2080Nvidia  $700Bench 119%, 130,036 samples573x
SSD
PC SN520 SDAPNUW-256G-1006 256GBWDCBench 148%, 3,434 samples225x
RAM
HP26D4U6D8ME-16X 1x16GBKingstonBench 48%, 1,763 samples1,431x
HP26D4U9D8ME-16X 1x16GBKingstonBench 49%, 1,687 samples1,252x
HP26D4U9S8ME-8X 2x8GBKingstonBench 82%, 745 samples259x
EDIT WITH CUSTOM PC BUILDER Value: 80% - Very good Total price: $540

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 Workstation

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) January 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.

 Comments

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Reaching its prime
Age: 15 months

Speed Comparisons

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1016 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 i5-9600K $218Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $43
Intel Core i5-9400F $155Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $370Nvidia RTX 2060 $340Samsung 850 Pro 512GB $204
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $643SanDisk Ultra Fit 32GB $16
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