TEST
YOUR SSD
ADD TO PC
BUILD

WDC

PC SN520 SDAPNUW-256G-1002 512GB

▲ 500 ▼

Release date ≈ Q2 2019.

Average Bench: 157% (146th of 1072)

Based on 17 user benchmarks.  Model: WDC PC SN520 SDAPNUW-256G-1002
Poor: 126%Average: 157% Great: 191%

Popular builds with this SSD

Outstanding average bench

The WDC PC SN520 SDAPNUW-256G-1002 512GB averaged 56.9% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the WDC PC SN520 SDAPNUW-256G-1002 512GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 741MB/s
Avg. 4K-64Thread Read Speed 795MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPNUW-256G-1002 512GB is 65.1%. This is a particularly wide range which indicates that the WDC PC SN520 SDAPNUW-256G-1002 512GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 625MB/s
Avg. Sequential Mixed IO Speed 627MB/s
ADVERTISEMENT

Average Bench

(Based on 17 samples)
Rank 146157%
Min Avg Max
450 Read 717 1,221
428 Write 735 1,223
380 Mixed 627 1,073
214 SusWrite 625 740
152% 676 MB/s
Min Avg Max
24 4K Read 39.5 46.7
75 4K Write 118 151
30.2 4K Mixed 55.9 69.5
194% 71.2 MB/s
Min Avg Max
516 DQ Read 795 1,072
231 DQ Write 553 947
483 DQ Mixed 741 1,059
535% 697 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
365GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 801 558 616 743 742 743 MB/s
190% Outstanding
Read 1,221
Write 1,223
Mixed 1,073
SusWrite 701
237% 1,055 MB/s
4K Read 42.9
4K Write 114
4K Mixed 61.1
204% 72.6 MB/s
DQ Read 918
DQ Write 664
DQ Mixed 815
603% 799 MB/s
145GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 856 727 730 732 554 468 MB/s
169% Outstanding
Read 761
Write 759
Mixed 674
SusWrite 678
162% 718 MB/s
4K Read 43.7
4K Write 119
4K Mixed 62.2
209% 74.9 MB/s
DQ Read 796
DQ Write 641
DQ Mixed 738
547% 725 MB/s
310GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 777 727 738 707 695 694 MB/s
161% Outstanding
Read 771
Write 765
Mixed 682
SusWrite 723
166% 735 MB/s
4K Read 41.5
4K Write 110
4K Mixed 42.1
175% 64.7 MB/s
DQ Read 774
DQ Write 726
DQ Mixed 718
548% 739 MB/s
94GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 389 255 182 178 180 176 MB/s
141% Outstanding
Read 769
Write 666
Mixed 678
SusWrite 227
131% 585 MB/s
4K Read 42.2
4K Write 113
4K Mixed 60
201% 71.8 MB/s
DQ Read 844
DQ Write 676
DQ Mixed 832
603% 784 MB/s
174GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 619 411 391 375 360 356 MB/s
128% Outstanding
Read 625
Write 563
Mixed 505
SusWrite 418
119% 528 MB/s
4K Read 35.3
4K Write 106
4K Mixed 56
181% 65.7 MB/s
DQ Read 666
DQ Write 245
DQ Mixed 520
367% 477 MB/s
73GB free (System drive)
Firmware: 20110000
SusWrite @10s intervals: 215 246 238 209 196 184 MB/s
115% Outstanding
Read 667
Write 428
Mixed 412
SusWrite 214
96% 430 MB/s
4K Read 30.6
4K Write 108
4K Mixed 43.9
160% 60.9 MB/s
DQ Read 765
DQ Write 387
DQ Mixed 534
408% 562 MB/s
17 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,903,615 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-1002 512GB Builds (Compare 284 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 10%
Tree trunk
Desktop
Desktop 58%
Gunboat
Workstation
Workstation 9%
Tree trunk

System: Asus ZenBook UX433FN_UX433FN

CPU
Core i7-8565UIntelBench 55%, 81,207 samples210x
Core i5-8265UIntelBench 53%, 87,841 samples74x
GPU
UHD Graphics 620IntelBench 5%, 178,291 samples199x
MX150-2NvidiaBench 11%, 5,332 samples85x
SSD
PC SN520 SDAPNUW-256G-1002 512GBWDCBench 157%, 17 samples1x
RAM
MT52L1G32D4PG-093 2x8GBMicronBench 66%, 14,288 samples161x
K4E6E304EC-EGCG 2x4GBSamsungBench 68%, 8,402 samples96x
MT52L512M32D2PF-09 2x4GBMicronBench 67%, 6,726 samples18x
EDIT WITH CUSTOM PC BUILDER

Popular PC SN520 SDAPNUW-256G-1002 512GB 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) 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]

ADVERTISEMENT

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.

 Comments

Added n/a ago.
Your
opinion?
▲Like ▼Dislike
Ready to retire
Age: 4 years

Speed Comparisons

vs Crucial MX500 250GB
vs Samsung 850 Evo 120GB
vs Samsung 860 Evo 250GB
vs Samsung 870 Evo 250GB
vs Samsung 850 Pro 512GB
vs Samsung 850 Evo 250GB
vs HyperX Savage 240GB
vs Crucial MX300 275GB
vs Samsung 850 Evo 1TB

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 $250Crucial MX500 250GB $39
Intel Core i5-12400F $128Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $160Nvidia RTX 4070 $550Samsung 870 Evo 250GB $29
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $39SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $48SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $62G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
If you make a purchase via one of these links, our site may earn a commission
Today's hottest
Amazon Ebay
deals
CPU GPU SSD HDD USB RAM MBD
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback