Today's hottest

Amazon Ebay

deals

CPU GPU SSD HDD USB RAM MBD

TEST
YOUR SSD

ADD TO PC
BUILD

WDC

PC SN520 SDAPMUW-256G-1101 256GB

PC SN520 SDAPMUW-256G-1101 2...
BENCHMARKS (6,320)
MKT (0%)
BUILDS
(0)

Effective Speed -281%Effective Speed -281%Average Score -331%Read -364%, Write -465%, 4K Read -132%, 4K Write -80%, Mixed -352%, 4K Mixed -109%, SusWrite -813%Peak Score -394%Read -397%, Write -440%, 4K Read -301%, 4K Write -122%, Mixed -364%, 4K Mixed -209%, SusWrite -926%Value & Sentiment -1,082%User Rating -37%, Market Share -2,128%Nice To Haves -167%DQ Read -169%, DQ Write -90%, DQ Mixed -186%, ADQ Read -143%, ADQ Write -121%, ADQ Mixed -159%, Age -301%, AS-SSD Total -170%

Average Bench: 143% (172^nd of 1079)

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

See where your SSD ranks →

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

Average Bench

(Based on 6,320 samples)

Rank 172143%

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

Bench

Sequential

Random 4k

Deep queue 4k

The fastest SSD (mainstream) averages a speed of 100%

BEL-User, 6 days ago.

32GB free (System drive)

Firmware: 20110001

SusWrite @10s intervals: 32 35 31 42 45 45 MB/s

404% Outstanding

Write 45.9

Mixed 92.7

SusWrite 38.4

273% 1,315 MB/s

4K Read 491

4K Write 2.5

4K Mixed 5.1

751% 166 MB/s

GBR-User, 5 days ago.

188GB free (System drive)

Firmware: 20210001

SusWrite @10s intervals: 477 399 412 407 347 290 MB/s

114% Outstanding

Write 1,008

Mixed 917

SusWrite 389

187% 833 MB/s

4K Read 31.2

4K Write 52

4K Mixed 36.3

121% 39.8 MB/s

DQ Read 316

DQ Write 204

DQ Mixed 306

216% 275 MB/s

ESP-User, 5 days ago.

213GB free (System drive)

Firmware: 20210001

SusWrite @10s intervals: 367 377 416 397 393 386 MB/s

80.7% Excellent

Write 586

Mixed 555

SusWrite 389

120% 535 MB/s

4K Read 13.3

4K Write 46.7

4K Mixed 18.5

69% 26.2 MB/s

DQ Read 330

DQ Write 185

DQ Mixed 245

186% 253 MB/s

GBR-User, 3 days ago.

106GB free (System drive)

Firmware: 20240001

SusWrite @10s intervals: 290 263 262 251 258 256 MB/s

79.6% Very good

Write 416

Mixed 401

SusWrite 264

94% 423 MB/s

4K Read 20.5

4K Write 52.3

4K Mixed 22.9

88% 31.9 MB/s

DQ Read 394

DQ Write 153

DQ Mixed 316

222% 287 MB/s

6,320 MORE »

Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 76,955,336 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 958 builds) See popular component choices, score breakdowns and rankings

Gaming 39%

Jet ski

Desktop 79%

Battleship

Workstation 34%

Sail boat

System: Lenovo 81LB

CPU
Core i7-8750HIntelBench 70%, 442,631 samples	612x
Core i5-8300HIntelBench 65%, 167,898 samples	346x

GPU
GTX 1060 (Mobile)NvidiaBench 47%, 177,775 samples	524x
UHD Graphics 630IntelBench 5%, 506,702 samples	434x

SSD
PC SN520 SDAPMUW-256G-1101 256GBWDCBench 143%, 6,320 samples	122x

RAM
M471A1K43CB1-CTD 2x8GBSamsungBench 76%, 108,106 samples	170x
M471A1K43CB1-CTD 1x8GBSamsungBench 40%, 96,646 samples	169x
M471A2K43CB1-CTD 1x16GBSamsungBench 44%, 44,819 samples	132x

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.

UserBenchmark of the month

Gaming

Desktop

ProGaming

CPU

GPU

SSD

HDD

RAM

USB

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) September 2024 SSD Rankings

Welcome to our 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]

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.

1079 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 »

CPU	GPU	SSD
Intel Core i5-12600K $169	Nvidia RTX 4060 $285	WD Black SN850X M.2 2TB $146
Intel Core i5-12400F $112	Nvidia RTX 4060-Ti $372	WD Black SN850X M.2 1TB $75
Intel Core i5-13600K $248	Nvidia RTX 4070 $278	Crucial T700 M.2 4TB $350

WDC

PC SN520 SDAPMUW-256G-1101 256GB