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WDC

PC SN520 SDAPNUW-256G-1006 256GB

▲ 501 ▼

Release date ≈ Q4 2018.

Average Bench: 144% (148th of 1058)

Based on 11,769 user benchmarks.  Model: WDC PC SN520 SDAPNUW-256G-1006
Poor: 83%Average: 144% Great: 188%

Popular builds with this SSD

Outstanding average bench

The WDC PC SN520 SDAPNUW-256G-1006 256GB averaged 44.2% 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 589MB/s
Avg. 4K-64Thread Write Speed 643MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPNUW-256G-1006 256GB is 106%. 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 670MB/s
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Average Bench

(Based on 11,769 samples)
Rank 148144%
Min Avg Max
511 Read 923 1,197
292 Write 839 1,198
321 Mixed 670 997
198 SusWrite 335 444
155% 692 MB/s
Min Avg Max
19.2 4K Read 39.5 47.8
39.2 4K Write 112 170
22.3 4K Mixed 52.2 71
186% 68 MB/s
Min Avg Max
345 DQ Read 695 858
217 DQ Write 643 1,047
251 DQ Mixed 589 732
464% 642 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
154GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 453 312 297 310 284 283 MB/s
168% Outstanding
Read 1,055
Write 758
Mixed 699
SusWrite 323
158% 709 MB/s
4K Read 43
4K Write 132
4K Mixed 63.1
216% 79.3 MB/s
DQ Read 858
DQ Write 904
DQ Mixed 726
589% 829 MB/s
74GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 328 227 213 204 204 196 MB/s
154% Outstanding
Read 1,092
Write 1,114
Mixed 983
SusWrite 229
191% 854 MB/s
4K Read 42.9
4K Write 112
4K Mixed 59
200% 71.1 MB/s
DQ Read 858
DQ Write 697
DQ Mixed 712
551% 756 MB/s
196GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 497 405 416 419 422 422 MB/s
121% Outstanding
Read 674
Write 651
Mixed 573
SusWrite 430
131% 582 MB/s
4K Read 28.7
4K Write 102
4K Mixed 24.9
130% 52 MB/s
DQ Read 733
DQ Write 604
DQ Mixed 661
497% 666 MB/s
186GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 394 418 404 414 417 420 MB/s
103% Outstanding
Read 590
Write 426
Mixed 450
SusWrite 411
105% 469 MB/s
4K Read 15
4K Write 96.2
4K Mixed 25.4
106% 45.5 MB/s
DQ Read 800
DQ Write 209
DQ Mixed 461
350% 490 MB/s
11,769 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 41,717,257 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 4,011 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 80%
Aircraft carrier
Desktop
Desktop 90%
Nuclear submarine
Workstation
Workstation 82%
Aircraft carrier

System: HP OMEN 30L Desktop GT13-0xxx

CPU
Ryzen 7 3700XAMD  $325Bench 86%, 518,830 samples1,466x
Ryzen 5 3600AMD  $219Bench 84%, 804,714 samples1,136x
Core i7-10700KIntel  $316Bench 99%, 93,601 samples579x
GPU
RTX 2060Nvidia  $338Bench 89%, 397,965 samples1,234x
GTX 1660S (Super)Nvidia  $240Bench 71%, 220,032 samples966x
RTX 3080Nvidia  $700Bench 203%, 112,024 samples590x
SSD
PC SN520 SDAPNUW-256G-1006 256GBWDCBench 144%, 11,769 samples993x
RAM
HP32D4U8S8HC-8XR 2x8GBKingstonBench 83%, 1,656 samples1,264x
HP32D4U8S8HC-8XR 1x8GBKingstonBench 59%, 742 samples472x
HP32D4U8D8HC-16X 2x16GBKingstonBench 97%, 536 samples360x
EDIT WITH CUSTOM PC BUILDER Value: 72% - Very good Total price: $663

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) April 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.

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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 $173Nvidia RTX 3070 $500Crucial MX500 250GB $49
Intel Core i5-11600K $265Nvidia RTX 3060-Ti $400Samsung 850 Evo 120GB $78
Intel Core i7-10700K $316Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $50
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $73SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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