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WDC

PC SN520 SDAPNUW-256G-1014 256GB

▲ 500 ▼

Release date ≈ Q1 2019.

Average Bench: 131% (176th of 1072)

Based on 2,257 user benchmarks.  Model: WDC PC SN520 SDAPNUW-256G-1014
Poor: 67%Average: 131% Great: 180%

Popular builds with this SSD

Outstanding average bench

The WDC PC SN520 SDAPNUW-256G-1014 256GB averaged 30.9% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the WDC PC SN520 SDAPNUW-256G-1014 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 483MB/s
Avg. 4K-64Thread Read Speed 622MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPNUW-256G-1014 256GB is 113%. This is a particularly wide range which indicates that the WDC PC SN520 SDAPNUW-256G-1014 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 317MB/s
Avg. 4K Random Write Speed 95.5MB/s
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Average Bench

(Based on 2,257 samples)
Rank 176131%
Min Avg Max
363 Read 883 1,206
271 Write 812 1,191
321 Mixed 684 1,073
170 SusWrite 317 442
151% 674 MB/s
Min Avg Max
15.4 4K Read 38.8 47.1
24.1 4K Write 95.5 153
16.2 4K Mixed 47.2 68.2
170% 60.5 MB/s
Min Avg Max
153 DQ Read 622 855
104 DQ Write 466 940
118 DQ Mixed 483 730
377% 523 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
142GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 467 471 426 428 424 429 MB/s
186% Outstanding
Read 1,190
Write 1,125
Mixed 999
SusWrite 441
210% 939 MB/s
4K Read 38.6
4K Write 195
4K Mixed 56.5
234% 96.6 MB/s
DQ Read 857
DQ Write 972
DQ Mixed 729
600% 853 MB/s
68GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 288 270 252 280 235 230 MB/s
178% Outstanding
Read 1,200
Write 1147
Mixed 842
SusWrite 259
193% 862 MB/s
4K Read 36.6
4K Write 169
4K Mixed 70.9
236% 92.2 MB/s
DQ Read 848
DQ Write 982
DQ Mixed 700
587% 843 MB/s
128GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 360 306 347 305 296 311 MB/s
130% Outstanding
Read 799
Write 1,069
Mixed 440
SusWrite 321
148% 657 MB/s
4K Read 30.5
4K Write 104
4K Mixed 55.5
173% 63.5 MB/s
DQ Read 687
DQ Write 393
DQ Mixed 549
406% 543 MB/s
65GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 222 170 234 174 169 167 MB/s
114% Outstanding
Read 735
Write 606
Mixed 632
SusWrite 189
121% 541 MB/s
4K Read 34.9
4K Write 76.4
4K Mixed 44.8
151% 52 MB/s
DQ Read 730
DQ Write 454
DQ Mixed 563
427% 582 MB/s
73GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 342 344 199 181 183 181 MB/s
114% Outstanding
Read 1,041
Write 845
Mixed 836
SusWrite 238
165% 740 MB/s
4K Read 27.8
4K Write 65.9
4K Mixed 33.1
119% 42.3 MB/s
DQ Read 510
DQ Write 417
DQ Mixed 536
381% 487 MB/s
69GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 261 194 182 183 177 181 MB/s
77% Very good
Read 314
Write 290
Mixed 265
SusWrite 196
60% 266 MB/s
4K Read 26.8
4K Write 49.7
4K Mixed 33.7
110% 36.7 MB/s
DQ Read 443
DQ Write 374
DQ Mixed 463
332% 427 MB/s
2,257 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,727,000 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-1014 256GB Builds (Compare 269 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 13%
Tree trunk
Desktop
Desktop 72%
Battleship
Workstation
Workstation 12%
Tree trunk

System: Acer Aspire A515-44

CPU
Ryzen 5 4500UAMDBench 71%, 28,533 samples165x
Ryzen 7 4700UAMDBench 75%, 19,248 samples65x
Ryzen 3 4300UAMDBench 68%, 4,587 samples39x
GPU
RX Vega 8 4000 (iGPU)AMDBench 13%, 162,082 samples269x
SSD
PC SN520 SDAPNUW-256G-1014 256GBWDCBench 131%, 2,257 samples1x
RAM
HMAA1GS6CMR6N-VK 1x8GBHynixBench 40%, 1,684 samples41x
4ATF51264HZ-3G2J1 Hynix HMA851S6CJR6N-VK 8GBMicronBench 66%, 1,340 samples30x
HMA851S6CJR6N-VK 2x4GBHynixBench 61%, 15,613 samples25x
EDIT WITH CUSTOM PC BUILDER

Popular PC SN520 SDAPNUW-256G-1014 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.

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
  • - 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 $184Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk 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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