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WDC

PC SN520 SDAPNUW-256G-1006 256GB

▲ 501 ▼

Release date ≈ Q4 2018.

Average Bench: 148% (132nd of 1040)

Based on 9,612 user benchmarks.  Model: WDC PC SN520 SDAPNUW-256G-1006
Poor: 86%Average: 148% Great: 190%

Popular builds with this SSD

Outstanding average bench

The WDC PC SN520 SDAPNUW-256G-1006 256GB averaged 48.5% 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 601MB/s
Avg. 4K-64Thread Write Speed 672MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPNUW-256G-1006 256GB is 104%. 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 345MB/s
Avg. Sequential Mixed IO Speed 718MB/s
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Average Bench

(Based on 9,612 samples)
Rank 132148%
Min Avg Max
575 Read 940 1,199
276 Write 865 1,210
360 Mixed 718 1,008
196 SusWrite 345 445
161% 717 MB/s
Min Avg Max
19.9 4K Read 39.1 48.7
46 4K Write 118 174
22.8 4K Mixed 54.8 72.4
192% 70.6 MB/s
Min Avg Max
338 DQ Read 713 857
176 DQ Write 672 1,056
246 DQ Mixed 601 733
476% 662 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
180GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 554 420 422 422 423 423 MB/s
191% Outstanding
Read 1,193
Write 1,209
Mixed 1007
SusWrite 444
216% 963 MB/s
4K Read 47.3
4K Write 162
4K Mixed 68.7
245% 92.7 MB/s
DQ Read 858
DQ Write 948
DQ Mixed 736
600% 847 MB/s
203GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 481 423 426 427 428 428 MB/s
178% Outstanding
Read 1,182
Write 1,148
Mixed 1001
SusWrite 436
211% 942 MB/s
4K Read 43.8
4K Write 129
4K Mixed 63
215% 78.5 MB/s
DQ Read 856
DQ Write 826
DQ Mixed 719
573% 800 MB/s
177GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 494 442 406 400 420 423 MB/s
165% Outstanding
Read 1,102
Write 1,098
Mixed 994
SusWrite 431
203% 906 MB/s
4K Read 37.8
4K Write 88
4K Mixed 50.3
168% 58.7 MB/s
DQ Read 848
DQ Write 1066
DQ Mixed 725
612% 880 MB/s
148GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 433 307 293 350 322 341 MB/s
155% Outstanding
Read 975
Write 871
Mixed 789
SusWrite 341
166% 744 MB/s
4K Read 45.4
4K Write 126
4K Mixed 63.5
217% 78.4 MB/s
DQ Read 813
DQ Write 438
DQ Mixed 610
457% 620 MB/s
97GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 342 311 276 262 250 255 MB/s
154% Outstanding
Read 1,073
Write 1,053
Mixed 679
SusWrite 283
172% 772 MB/s
4K Read 40
4K Write 111
4K Mixed 56.4
192% 69.2 MB/s
DQ Read 809
DQ Write 717
DQ Mixed 729
556% 752 MB/s
160GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 378 354 356 349 366 363 MB/s
131% Outstanding
Read 1,017
Write 1,063
Mixed 888
SusWrite 361
187% 832 MB/s
4K Read 27.9
4K Write 64.9
4K Mixed 40.9
129% 44.6 MB/s
DQ Read 680
DQ Write 580
DQ Mixed 460
391% 574 MB/s
9,612 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 38,350,840 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 2,501 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 81%
Aircraft carrier
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 82%
Aircraft carrier

System: HP OMEN 30L Desktop GT13-0xxx

CPU
Ryzen 7 3700XAMD  $325Bench 87%, 435,494 samples1,041x
Ryzen 5 3600AMD  $200Bench 83%, 663,516 samples860x
Core i7-10700KIntel  $358Bench 99%, 63,063 samples232x
GPU
RTX 2060Nvidia  $338Bench 89%, 351,317 samples908x
GTX 1660S (Super)Nvidia  $240Bench 71%, 193,417 samples753x
RTX 3080Nvidia  $700Bench 204%, 90,470 samples246x
SSD
PC SN520 SDAPNUW-256G-1006 256GBWDCBench 148%, 9,612 samples876x
RAM
HP32D4U8S8HC-8XR 2x8GBKingstonBench 83%, 1,144 samples848x
HP32D4U8S8HC-8XR 1x8GBKingstonBench 59%, 594 samples387x
HP32D4U8S8ME-8XR 2x8GBKingstonBench 82%, 272 samples186x
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.

UserBenchmark of the month

Gaming Desktop ProGaming

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 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

vs Crucial MX500 250GB
vs Samsung 850 Evo 120GB
vs Samsung 860 Evo 250GB
vs Samsung 850 Pro 512GB
vs Samsung 850 Evo 250GB
vs HyperX Savage 240GB
vs Crucial MX300 275GB
vs Samsung 850 Evo 1TB
vs Crucial MX200 250GB

1040 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 $200Nvidia RTX 3060-Ti $400Crucial MX500 250GB $47
Intel Core i5-10600K $257Nvidia RTX 3070 $500Samsung 850 Evo 120GB $78
Intel Core i5-10400F $161Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $40
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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