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WDC

PC SN520 SDAPNUW-256G-1006 256GB

▲ 501 ▼

Release date ≈ Q4 2018.

Average Bench: 142% (151st of 1058)

Based on 14,381 user benchmarks.  Model: WDC PC SN520 SDAPNUW-256G-1006
Poor: 80%Average: 142% Great: 186%

Popular builds with this SSD

Outstanding average bench

The WDC PC SN520 SDAPNUW-256G-1006 256GB averaged 42.3% 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 582MB/s
Avg. 4K-64Thread Write Speed 629MB/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 706MB/s
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Average Bench

(Based on 14,381 samples)
Rank 151142%
Min Avg Max
539 Read 904 1,196
297 Write 830 1,190
336 Mixed 706 1,005
180 SusWrite 335 440
155% 693 MB/s
Min Avg Max
18 4K Read 36.5 47.7
39.9 4K Write 111 169
22.4 4K Mixed 52.6 71.5
181% 66.7 MB/s
Min Avg Max
280 DQ Read 699 859
157 DQ Write 629 1,034
216 DQ Mixed 582 732
459% 637 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
194GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 611 418 424 423 429 425 MB/s
183% Outstanding
Read 1,202
Write 1,188
Mixed 731
SusWrite 455
200% 894 MB/s
4K Read 32.5
4K Write 166
4K Mixed 68.9
225% 89.1 MB/s
DQ Read 777
DQ Write 873
DQ Mixed 719
571% 790 MB/s
157GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 400 347 355 279 276 274 MB/s
150% Outstanding
Read 728
Write 1,073
Mixed 822
SusWrite 322
166% 736 MB/s
4K Read 39.2
4K Write 103
4K Mixed 55.1
185% 65.9 MB/s
DQ Read 856
DQ Write 1,120
DQ Mixed 727
622% 901 MB/s
127GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 524 370 393 387 326 303 MB/s
127% Outstanding
Read 993
Write 988
Mixed 919
SusWrite 384
184% 821 MB/s
4K Read 36.7
4K Write 83.1
4K Mixed 47.7
161% 55.8 MB/s
DQ Read 304
DQ Write 338
DQ Mixed 390
274% 344 MB/s
34GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 254 253 244 248 235 248 MB/s
126% Outstanding
Read 921
Write 209
Mixed 336
SusWrite 247
94% 428 MB/s
4K Read 30.7
4K Write 115
4K Mixed 48.8
170% 65 MB/s
DQ Read 561
DQ Write 378
DQ Mixed 406
320% 448 MB/s
111GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 278 284 235 243 228 230 MB/s
124% Outstanding
Read 696
Write 682
Mixed 578
SusWrite 249
124% 551 MB/s
4K Read 39.2
4K Write 101
4K Mixed 55.4
184% 65.2 MB/s
DQ Read 699
DQ Write 357
DQ Mixed 660
455% 572 MB/s
14,381 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,076,815 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 6,465 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  $310Bench 87%, 646,253 samples1,981x
Ryzen 5 3600AMD  $270Bench 84%, 980,212 samples1,457x
Core i7-10700KIntel  $309Bench 98%, 119,948 samples1,156x
GPU
RTX 2060Nvidia  $390Bench 88%, 510,381 samples1,601x
GTX 1660S (Super)Nvidia  $240Bench 71%, 284,028 samples1,231x
RTX 3080Nvidia  $700Bench 204%, 172,779 samples1,208x
SSD
PC SN520 SDAPNUW-256G-1006 256GBWDCBench 142%, 14,381 samples1,149x
RAM
HP32D4U8S8HC-8XR 2x8GBKingstonBench 83%, 2,538 samples1,670x
HP32D4U8D8HC-16X 2x16GBKingstonBench 98%, 1,125 samples836x
HP32D4U8D8HC-16XR 2x16GBKingstonBench 99%, 964 samples602x
EDIT WITH CUSTOM PC BUILDER Value: 67% - Good Total price: $700

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.
  • - 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) September 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 i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $44
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 850 Evo 120GB $183
Intel Core i7-11700K $346Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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