TEST
YOUR SSD
ADD TO PC
BUILD

WDC

PC SN520 SDAPNUW-256G-1006 256GB

▲ 501 ▼

Release date ≈ Q4 2018.

Average Bench: 149% (129th of 1037)

Based on 8,054 user benchmarks.  Model: WDC PC SN520 SDAPNUW-256G-1006
Poor: 88%Average: 149% Great: 190%

Popular builds with this SSD

Outstanding average bench

The WDC PC SN520 SDAPNUW-256G-1006 256GB averaged 49.3% 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 618MB/s
Avg. 4K-64Thread Write Speed 683MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPNUW-256G-1006 256GB is 103%. 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 380MB/s
Avg. Sequential Mixed IO Speed 711MB/s
ADVERTISEMENT

Average Bench

(Based on 8,054 samples)
Rank 129149%
Min Avg Max
439 Read 919 1,199
308 Write 867 1,211
328 Mixed 711 1,012
246 SusWrite 380 445
161% 719 MB/s
Min Avg Max
19.9 4K Read 37.4 48.4
55.6 4K Write 118 175
25.4 4K Mixed 54.1 72.2
188% 69.8 MB/s
Min Avg Max
400 DQ Read 718 858
263 DQ Write 683 1,052
334 DQ Mixed 618 733
486% 673 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
188GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 515 422 420 421 422 421 MB/s
185% Outstanding
Read 946
Write 1,156
Mixed 620
SusWrite 437
177% 790 MB/s
4K Read 48
4K Write 172
4K Mixed 72.3
256% 97.3 MB/s
DQ Read 856
DQ Write 991
DQ Mixed 738
608% 862 MB/s
190GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 417 459 419 419 420 420 MB/s
178% Outstanding
Read 842
Write 1127
Mixed 657
SusWrite 426
172% 763 MB/s
4K Read 47.9
4K Write 167
4K Mixed 71.6
253% 95.6 MB/s
DQ Read 854
DQ Write 947
DQ Mixed 682
574% 828 MB/s
171GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 584 429 421 419 423 423 MB/s
171% Outstanding
Read 786
Write 1121
Mixed 753
SusWrite 450
175% 777 MB/s
4K Read 43.3
4K Write 159
4K Mixed 70
240% 90.9 MB/s
DQ Read 853
DQ Write 856
DQ Mixed 732
584% 814 MB/s
190GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 511 424 424 426 428 427 MB/s
152% Outstanding
Read 643
Write 718
Mixed 650
SusWrite 440
138% 613 MB/s
4K Read 39.7
4K Write 119
4K Mixed 58.7
198% 72.5 MB/s
DQ Read 800
DQ Write 882
DQ Mixed 734
582% 806 MB/s
8,054 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 31,662,805 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 777 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 62%
Destroyer
Desktop
Desktop 88%
Aircraft carrier
Workstation
Workstation 58%
Gunboat

System: HP OMEN 30L Desktop GT13-0xxx

CPU
Ryzen 5 3600AMD  $175Bench 84%, 464,160 samples435x
Ryzen 7 3700XAMD  $284Bench 87%, 303,631 samples248x
Core i9-10900KIntel  $488Bench 102%, 8,149 samples29x
GPU
GTX 1660S (Super)Nvidia  $230Bench 70%, 105,563 samples402x
RTX 2060Nvidia  $314Bench 85%, 261,890 samples221x
RTX 2080-TiNvidia  $1,343Bench 171%, 202,500 samples42x
SSD
PC SN520 SDAPNUW-256G-1006 256GBWDCBench 149%, 8,054 samples499x
RAM
HP32D4U8S8HC-8XR 1x8GBKingstonBench 59%, 312 samples221x
HP32D4U8S8HC-8XR 2x8GBKingstonBench 83%, 161 samples143x
HP32D4U8S8ME-8XR 2x8GBKingstonBench 82%, 123 samples92x
EDIT WITH CUSTOM PC BUILDER Value: 82% - Excellent Total price: $405

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) September 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]

ADVERTISEMENT

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

Added n/a ago.
Your
opinion?
▲Like ▼Dislike
Over the hill
Age: 23 months

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 Samsung 850 Evo 1TB
vs Crucial MX300 275GB
vs Crucial MX200 250GB

1037 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 $195Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $44
Intel Core i5-9400F $140Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $299Nvidia RTX 2070S (Super) $505Samsung 860 Evo 250GB $42
HDDRAMUSB
Seagate Barracuda 1TB (2016) $35Corsair Vengeance LPX DDR4 3200 C16 2x8GB $69SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 32GB $30
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Extreme 16GB $28
Today's hottest
Amazon Ebay
deals
CPU GPU SSD HDD USB RAM MBD
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback