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WDC

PC SN520 SDAPNUW-256G-1006 256GB

▲ 500 ▼

Release date ≈ Q4 2018.

VS

Average Bench: 145% (110th of 1003)

Based on 1,109 user benchmarks.  Model: WDC PC SN520 SDAPNUW-256G-1006
Poor: 96%Average: 145% Great: 178%

Popular builds with this SSD

Outstanding average bench

The WDC PC SN520 SDAPNUW-256G-1006 256GB averaged 45.0% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the WDC PC SN520 SDAPNUW-256G-1006 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 590MB/s
Avg. 4K-64Thread Write Speed 659MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPNUW-256G-1006 256GB is 82%. This is a particularly wide range which indicates that the WDC PC SN520 SDAPNUW-256G-1006 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 408MB/s
Avg. Sequential Mixed IO Speed 694MB/s
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Average Bench

(Based on 1,109 samples)
Rank 110145%
Min Avg Max
394 Read 834 1,166
414 Write 737 1,086
440 Mixed 694 958
279 SusWrite 408 447
150% 668 MB/s
Min Avg Max
21.3 4K Read 38.5 47.1
50.9 4K Write 113 162
26.3 4K Mixed 52 68.8
185% 67.8 MB/s
Min Avg Max
49.3 DQ Read 682 858
196 DQ Write 659 1,043
74.9 DQ Mixed 590 732
465% 644 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
198GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 534 433 431 431 432 432 MB/s
172% Outstanding
Read 781
Write 721
Mixed 684
SusWrite 449
148% 659 MB/s
4K Read 43.6
4K Write 132
4K Mixed 63.6
218% 79.9 MB/s
DQ Read 854
DQ Write 1,193
DQ Mixed 723
631% 924 MB/s
181GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 512 413 419 420 420 419 MB/s
162% Outstanding
Read 724
Write 651
Mixed 628
SusWrite 434
137% 609 MB/s
4K Read 45.7
4K Write 140
4K Mixed 65.7
228% 83.8 MB/s
DQ Read 853
DQ Write 749
DQ Mixed 712
558% 771 MB/s
185GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 534 419 418 420 420 421 MB/s
159% Outstanding
Read 788
Write 698
Mixed 697
SusWrite 439
147% 655 MB/s
4K Read 42.1
4K Write 115
4K Mixed 60.3
202% 72.6 MB/s
DQ Read 854
DQ Write 864
DQ Mixed 723
581% 814 MB/s
158GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 494 475 426 433 434 432 MB/s
154% Outstanding
Read 846
Write 766
Mixed 763
SusWrite 449
159% 706 MB/s
4K Read 46.7
4K Write 139
4K Mixed 57.9
218% 81.1 MB/s
DQ Read 445
DQ Write 707
DQ Mixed 713
502% 622 MB/s
213GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 420 388 425 421 422 427 MB/s
149% Outstanding
Read 756
Write 671
Mixed 629
SusWrite 417
139% 618 MB/s
4K Read 44.2
4K Write 131
4K Mixed 46.1
195% 73.7 MB/s
DQ Read 821
DQ Write 740
DQ Mixed 729
561% 763 MB/s
209GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 529 442 428 427 425 429 MB/s
128% Outstanding
Read 739
Write 691
Mixed 647
SusWrite 447
142% 631 MB/s
4K Read 43.5
4K Write 132
4K Mixed 63.1
216% 79.4 MB/s
DQ Read 38.7
DQ Write 131
DQ Mixed 57
52% 75.6 MB/s
85GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 391 290 253 257 262 250 MB/s
126% Outstanding
Read 764
Write 717
Mixed 651
SusWrite 284
135% 604 MB/s
4K Read 39.9
4K Write 82.5
4K Mixed 53.4
173% 58.6 MB/s
DQ Read 614
DQ Write 457
DQ Mixed 544
404% 538 MB/s
1,109 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 15,781,594 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-1006 256GB Builds (Compare 162 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 17%
Surfboard
Desktop
Desktop 71%
Battleship
Workstation
Workstation 39%
Jet ski

System: HP ProBook 450 G6

CPU
Core i5-8265UIntelBench 68%, 5,219 samples90x
Core i7-8565UIntelBench 71%, 6,146 samples57x
Core i3-8145UIntelBench 59%, 457 samples8x
GPU
UHD Graphics 620IntelBench 8%, 9,571 samples142x
MX130NvidiaBench 12%, 2,619 samples20x
SSD
PC SN520 SDAPNUW-256G-1006 256GBWDCBench 145%, 1,109 samples62x
RAM
8ATF1G64HZ-2G6E1 1x8GBMicronBench 41%, 8,486 samples29x
HMA81GS6CJR8N-VK 1x8GBHynixBench 41%, 17,955 samples21x
HMA82GS6JJR8N-VK 1x16GBHynixBench 45%, 380 samples10x
EDIT WITH CUSTOM PC BUILDER

Popular PC SN520 SDAPNUW-256G-1006 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.

UserBenchmark of the month

Gaming Desktop Workstation

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.
  • - 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.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) July 2019 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.

 Comments

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Reaching its prime
Age: 9 months

Speed Comparisons

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1003 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 i7-8700K $350Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
AMD Ryzen 5 2600 $127Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $248Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $68SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $606SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Ultra Fit 32GB $12
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