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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%
123GB free
Firmware: 20210001
SusWrite @10s intervals: 627 427 427 427 425 428 MB/s
209% Outstanding
Read 1,196
Write 1,238
Mixed 1,005
SusWrite 460
219% 975 MB/s
4K Read 49.2
4K Write 214
4K Mixed 75.2
284% 113 MB/s
DQ Read 862
DQ Write 1201
DQ Mixed 730
636% 931 MB/s
161GB free (System drive)
Firmware: 20290001
SusWrite @10s intervals: 367 366 317 324 315 311 MB/s
123% Outstanding
Read 1096
Write 933
Mixed 849
SusWrite 333
179% 803 MB/s
4K Read 30
4K Write 72.2
4K Mixed 36.6
131% 46.3 MB/s
DQ Read 550
DQ Write 300
DQ Mixed 389
299% 413 MB/s
129GB free (System drive)
Firmware: 20210001
SusWrite @10s intervals: 354 353 302 322 335 330 MB/s
80.5% Excellent
Read 488
Write 675
Mixed 631
SusWrite 333
120% 532 MB/s
4K Read 24.2
4K Write 27.9
4K Mixed 26
85% 26 MB/s
DQ Read 362
DQ Write 281
DQ Mixed 193
179% 278 MB/s
98GB free (System drive)
Firmware: 20210001
SusWrite @10s intervals: 388 326 290 272 266 242 MB/s
80.3% Excellent
Read 685
Write 735
Mixed 645
SusWrite 297
133% 591 MB/s
4K Read 13
4K Write 32.6
4K Mixed 26.4
71% 24 MB/s
DQ Read 334
DQ Write 200
DQ Mixed 263
197% 266 MB/s
6,320 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,870,219 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 938 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 39%
Jet ski
Desktop
Desktop 79%
Battleship
Workstation
Workstation 34%
Sail boat

System: Lenovo 81LB

CPU
Core i7-8750HIntelBench 70%, 442,631 samples600x
Core i5-8300HIntelBench 65%, 167,898 samples338x
GPU
GTX 1060 (Mobile)NvidiaBench 47%, 177,775 samples513x
UHD Graphics 630IntelBench 5%, 506,702 samples425x
SSD
PC SN520 SDAPMUW-256G-1101 256GBWDCBench 143%, 6,320 samples120x
RAM
M471A1K43CB1-CTD 2x8GBSamsungBench 76%, 108,106 samples166x
M471A1K43CB1-CTD 1x8GBSamsungBench 40%, 96,646 samples166x
M471A2K43CB1-CTD 1x16GBSamsungBench 44%, 44,819 samples129x
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 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) May 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 $254Nvidia RTX 4060 $293Crucial MX500 250GB $39
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $175Nvidia RTX 4070 $550Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $45SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $62G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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