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WDC

PC SN520 SDAPMUW-256G-1101 256GB

▲ 500 ▼

Release date ≈ Q4 2018.

Average Bench: 143% (164th of 1072)

Based on 6,320 user benchmarks.  Model: WDC PC SN520 SDAPMUW-256G-1101
Poor: 95%Average: 143% Great: 188%

Popular builds with this SSD

Outstanding average bench

The WDC PC SN520 SDAPMUW-256G-1101 256GB averaged 43.2% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the WDC PC SN520 SDAPMUW-256G-1101 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 574MB/s
Avg. 4K-64Thread Read Speed 706MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPMUW-256G-1101 256GB is 93.5%. This is a particularly wide range which indicates that the WDC PC SN520 SDAPMUW-256G-1101 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 347MB/s
Avg. Sequential Mixed IO Speed 713MB/s
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Average Bench

(Based on 6,320 samples)
Rank 164143%
Min Avg Max
582 Read 902 1,192
356 Write 821 1,188
380 Mixed 713 1,007
185 SusWrite 347 445
156% 696 MB/s
Min Avg Max
18.9 4K Read 38.6 48
45 4K Write 115 172
23.6 4K Mixed 53 71.1
187% 68.8 MB/s
Min Avg Max
311 DQ Read 706 860
179 DQ Write 570 996
208 DQ Mixed 574 732
447% 617 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
198GB free (System drive)
Firmware: 20210001
SusWrite @10s intervals: 499 466 423 422 424 423 MB/s
151% Outstanding
Read 791
Write 1,082
Mixed 469
SusWrite 443
157% 696 MB/s
4K Read 32.1
4K Write 116
4K Mixed 59.8
187% 69.3 MB/s
DQ Read 820
DQ Write 708
DQ Mixed 727
555% 752 MB/s
90GB free (System drive)
Firmware: 20240001
SusWrite @10s intervals: 424 410 297 365 264 252 MB/s
130% Outstanding
Read 1,147
Write 1007
Mixed 952
SusWrite 335
192% 860 MB/s
4K Read 32.2
4K Write 62.2
4K Mixed 44.4
139% 46.3 MB/s
DQ Read 526
DQ Write 358
DQ Mixed 433
325% 439 MB/s
126GB free (System drive)
Firmware: 20110001
SusWrite @10s intervals: 376 339 274 286 292 286 MB/s
129% Outstanding
Read 1,154
Write 1,044
Mixed 556
SusWrite 309
170% 765 MB/s
4K Read 29.2
4K Write 74.4
4K Mixed 45.7
142% 49.8 MB/s
DQ Read 526
DQ Write 322
DQ Mixed 425
316% 424 MB/s
123GB free (System drive)
Firmware: 20110001
SusWrite @10s intervals: 495 416 353 354 350 316 MB/s
125% Outstanding
Read 799
Write 724
Mixed 724
SusWrite 381
148% 657 MB/s
4K Read 27.3
4K Write 78.8
4K Mixed 39.7
134% 48.6 MB/s
DQ Read 713
DQ Write 535
DQ Mixed 629
469% 626 MB/s
180GB free (System drive)
Firmware: 20210001
SusWrite @10s intervals: 523 402 417 407 353 338 MB/s
106% Outstanding
Read 853
Write 843
Mixed 748
SusWrite 407
160% 713 MB/s
4K Read 29.1
4K Write 44.9
4K Mixed 34.2
112% 36.1 MB/s
DQ Read 327
DQ Write 201
DQ Mixed 279
204% 269 MB/s
104GB free (System drive)
Firmware: 20290001
SusWrite @10s intervals: 418 418 406 330 347 329 MB/s
96.9% Outstanding
Read 380
Write 421
Mixed 468
SusWrite 374
93% 411 MB/s
4K Read 27.9
4K Write 51.3
4K Mixed 41.9
123% 40.4 MB/s
DQ Read 586
DQ Write 305
DQ Mixed 421
319% 437 MB/s
6,320 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 73,438,433 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-1101 256GB Builds (Compare 891 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 35%
Jet ski
Desktop
Desktop 77%
Battleship
Workstation
Workstation 31%
Sail boat

System: Lenovo 81LB

CPU
Core i7-8750HIntelBench 70%, 442,631 samples571x
Core i5-8300HIntelBench 65%, 167,898 samples320x
GPU
GTX 1060 (Mobile)NvidiaBench 47%, 177,775 samples496x
UHD Graphics 630IntelBench 5%, 506,702 samples395x
SSD
PC SN520 SDAPMUW-256G-1101 256GBWDCBench 143%, 6,320 samples116x
RAM
M471A1K43CB1-CTD 1x8GBSamsungBench 40%, 96,646 samples164x
M471A1K43CB1-CTD 2x8GBSamsungBench 76%, 108,106 samples156x
M471A2K43CB1-CTD 1x16GBSamsungBench 44%, 44,819 samples124x
EDIT WITH CUSTOM PC BUILDER

Popular PC SN520 SDAPMUW-256G-1101 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
  • - 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) December 2023 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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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?
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ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $270Nvidia RTX 4060 $295Crucial MX500 250GB $30
Intel Core i5-12400F $146Nvidia RTX 4060-Ti $360Samsung 850 Evo 120GB $80
Intel Core i5-12600K $189Nvidia RTX 3060-Ti $340Samsung 860 Evo 250GB $49
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $42SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $50G.SKILL Trident Z DDR4 3200 C14 4x16GB $357SanDisk Ultra Fit 32GB $16
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