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WDC

PC SN520 SDAPMUW-256G-1001 256GB

▲ 500 ▼

Release date ≈ Q3 2019.

Average Bench: 142% (166th of 1072)

Based on 523 user benchmarks.  Model: WDC PC SN520 SDAPMUW-256G-1001
Poor: 86%Average: 142% Great: 177%

Popular builds with this SSD

Outstanding average bench

The WDC PC SN520 SDAPMUW-256G-1001 256GB averaged 41.6% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the WDC PC SN520 SDAPMUW-256G-1001 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 544MB/s
Avg. 4K-64Thread Write Speed 585MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPMUW-256G-1001 256GB is 90.5%. This is a particularly wide range which indicates that the WDC PC SN520 SDAPMUW-256G-1001 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 362MB/s
Avg. 4K Random Write Speed 103MB/s
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Average Bench

(Based on 523 samples)
Rank 166142%
Min Avg Max
511 Read 931 1,196
361 Write 817 1,166
377 Mixed 723 1,003
210 SusWrite 362 443
159% 708 MB/s
Min Avg Max
17.9 4K Read 40 46.5
32.5 4K Write 103 153
20.8 4K Mixed 50.1 67.6
179% 64.4 MB/s
Min Avg Max
283 DQ Read 638 848
188 DQ Write 585 1,007
183 DQ Mixed 544 731
426% 589 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
51GB free (System drive)
Firmware: 20370001
SusWrite @10s intervals: 43 47 44 41 42 43 MB/s
432% Outstanding
Read 4,558
Write 43.1
Mixed 86.7
SusWrite 43.2
246% 1,183 MB/s
4K Read 612
4K Write 3
4K Mixed 5.3
935% 207 MB/s
87GB free (System drive)
Firmware: 20240001
SusWrite @10s intervals: 398 288 246 243 239 232 MB/s
142% Outstanding
Read 708
Write 657
Mixed 652
SusWrite 274
128% 573 MB/s
4K Read 42.9
4K Write 111
4K Mixed 58.8
199% 71 MB/s
DQ Read 824
DQ Write 751
DQ Mixed 730
564% 768 MB/s
195GB free (System drive)
Firmware: 20370001
SusWrite @10s intervals: 506 430 424 424 429 428 MB/s
141% Outstanding
Read 715
Write 659
Mixed 649
SusWrite 440
138% 616 MB/s
4K Read 39.7
4K Write 114
4K Mixed 57.4
194% 70.5 MB/s
DQ Read 661
DQ Write 489
DQ Mixed 570
428% 573 MB/s
203GB free (System drive)
Firmware: 20370001
SusWrite @10s intervals: 496 423 427 429 428 428 MB/s
140% Outstanding
Read 714
Write 658
Mixed 650
SusWrite 439
138% 615 MB/s
4K Read 39.4
4K Write 113
4K Mixed 56.7
192% 69.7 MB/s
DQ Read 640
DQ Write 480
DQ Mixed 563
420% 561 MB/s
27GB free (System drive)
Firmware: 20370001
SusWrite @10s intervals: 165 150 178 138 225 295 MB/s
97.4% Outstanding
Read 717
Write 104
Mixed 258
SusWrite 192
69% 318 MB/s
4K Read 25.3
4K Write 67.7
4K Mixed 37.3
122% 43.4 MB/s
DQ Read 465
DQ Write 385
DQ Mixed 394
304% 415 MB/s
523 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,702,031 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 SDAPMUW-256G-1001 256GB Builds (Compare 74 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 59%
Gunboat
Desktop
Desktop 87%
Aircraft carrier
Workstation
Workstation 49%
Yacht

System: Lenovo 90NUZ58AUS

CPU
Core i5-9400FIntel  $102Bench 85%, 299,482 samples74x
GPU
GTX 1660Nvidia  $143Bench 68%, 230,793 samples50x
RTX 3060Nvidia  $274Bench 100%, 447,556 samples4x
RTX 2060S (Super)Nvidia  $510Bench 100%, 319,148 samples3x
SSD
PC SN520 SDAPMUW-256G-1001 256GBWDCBench 142%, 523 samples26x
RAM
HMA81GU6JJR8N-VK 1x8GBHynixBench 44%, 1,972 samples15x
M378A1K43DB2-CTD 1x8GBSamsungBench 43%, 7,517 samples7x
Vengeance LPX DDR4 3200 C16 2x8GBCorsair  $40Bench 85%, 653,654 samples5x
EDIT WITH CUSTOM PC BUILDER Value: 113% - Outstanding Total price: $245

Popular PC SN520 SDAPMUW-256G-1001 256GB systems:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute

Welcome to our 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 value for money 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
  • - 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) April 2024 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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1072 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 i5-13600K $273Nvidia RTX 4060 $295Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $179Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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