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WDC

PC SN520 SDAPNUW-256G-1102 256GB

▲ 500 ▼

Release date ≈ Q3 2019.

Average Bench: 128% (179th of 1072)

Based on 1,103 user benchmarks.  Model: WDC PC SN520 SDAPNUW-256G-1102
Poor: 75%Average: 128% Great: 169%

Popular builds with this SSD

Outstanding average bench

The WDC PC SN520 SDAPNUW-256G-1102 256GB averaged 28.2% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the WDC PC SN520 SDAPNUW-256G-1102 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 528MB/s
Avg. 4K-64Thread Read Speed 626MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPNUW-256G-1102 256GB is 94.5%. This is a particularly wide range which indicates that the WDC PC SN520 SDAPNUW-256G-1102 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 319MB/s
Avg. 4K Random Write Speed 90.2MB/s
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Average Bench

(Based on 1,103 samples)
Rank 179128%
Min Avg Max
331 Read 886 1,201
271 Write 822 1,163
297 Mixed 679 1,037
188 SusWrite 319 440
151% 676 MB/s
Min Avg Max
19 4K Read 33.7 44.1
39.8 4K Write 90.2 135
24 4K Mixed 46.7 63.8
159% 56.9 MB/s
Min Avg Max
270 DQ Read 626 852
140 DQ Write 461 794
201 DQ Mixed 528 727
399% 538 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
210GB free
Firmware: 20180000
SusWrite @10s intervals: 615 419 420 421 421 426 MB/s
206% Outstanding
Read 1,201
Write 1,139
Mixed 996
SusWrite 454
212% 948 MB/s
4K Read 48.8
4K Write 197
4K Mixed 75.7
275% 107 MB/s
DQ Read 854
DQ Write 1,184
DQ Mixed 728
631% 922 MB/s
191GB free (System drive)
Firmware: 20180000
SusWrite @10s intervals: 502 449 414 419 418 418 MB/s
147% Outstanding
Read 705
Write 703
Mixed 657
SusWrite 437
141% 625 MB/s
4K Read 38.3
4K Write 88.5
4K Mixed 52.4
172% 59.7 MB/s
DQ Read 860
DQ Write 858
DQ Mixed 723
581% 814 MB/s
103GB free (System drive)
Firmware: 20180000
SusWrite @10s intervals: 406 300 336 300 298 294 MB/s
118% Outstanding
Read 1,070
Write 992
Mixed 822
SusWrite 322
179% 802 MB/s
4K Read 33.3
4K Write 63.9
4K Mixed 43.9
140% 47 MB/s
DQ Read 332
DQ Write 204
DQ Mixed 256
194% 264 MB/s
69GB free (System drive)
Firmware: 20180000
SusWrite @10s intervals: 297 289 260 270 243 264 MB/s
112% Outstanding
Read 712
Write 898
Mixed 426
SusWrite 270
129% 576 MB/s
4K Read 28.7
4K Write 82.2
4K Mixed 44.3
144% 51.7 MB/s
DQ Read 612
DQ Write 380
DQ Mixed 411
329% 468 MB/s
1,103 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,873,470 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-1102 256GB Builds (Compare 154 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 10%
Tree trunk
Desktop
Desktop 54%
Yacht
Workstation
Workstation 10%
Tree trunk

System: Asus VivoBook_ASUSLaptop X412DA_X412DA

CPU
Ryzen 5 3500UAMDBench 48%, 78,189 samples128x
Ryzen 3 3200UAMDBench 41%, 21,522 samples16x
Ryzen 7 3700UAMDBench 49%, 23,686 samples10x
GPU
Radeon Vega 8 GraphicsAMDBench 10%, 115,953 samples128x
Radeon Vega 3 GraphicsAMDBench 5%, 27,821 samples16x
Radeon RX Vega 10 GraphicsAMDBench 10%, 37,264 samples10x
SSD
PC SN520 SDAPNUW-256G-1102 256GBWDCBench 128%, 1,103 samples1x
RAM
HMA851S6AFR6N-UH HMA851S6JJR6N-VK 8GBHynixBench 50%, 620 samples61x
HMA851S6AFR6N-UH Samsung M471A5244CB0-CRC 8GBHynixBench 56%, 4,116 samples28x
HMA851S6AFR6N-UH 1x4GBHynixBench 32%, 32,443 samples9x
EDIT WITH CUSTOM PC BUILDER

Popular PC SN520 SDAPNUW-256G-1102 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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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) 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

vs Crucial MX500 250GB
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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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