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Nvme

PC SN520 WDC 256GB

PC SN520 WDC 256GB
BENCHMARKS (41)
MKT (0%)
BUILDS
(0)

Effective Speed -298%Effective Speed -298%Average Score -316%Read -366%, Write -385%, 4K Read -144%, 4K Write -108%, Mixed -299%, 4K Mixed -122%, SusWrite -792%Peak Score -376%Read -391%, Write -423%, 4K Read -304%, 4K Write -73%, Mixed -324%, 4K Mixed -218%, SusWrite -900%Value & Sentiment User Rating -37%, Market Share -∞%Nice To Haves -153%DQ Read -169%, DQ Write -87%, DQ Mixed -185%, ADQ Read -162%, ADQ Write -140%, ADQ Mixed -181%, Age -138%, AS-SSD Total -163%

Average Bench: 137% (179^th of 1080)

Based on 41 user benchmarks. Model: NVMe PC SN520 NVMe WDC 256GB

Poor: 69%Average: 137% Great: 176%

Popular builds with this SSD

Outstanding average bench

The Nvme PC SN520 WDC 256GB averaged 37.3% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Nvme PC SN520 WDC 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 530MB/s

Avg. 4K-64Thread Read Speed 655MB/s

See where your SSD ranks →

Terrible consistency

The range of scores (95th - 5th percentile) for the Nvme PC SN520 WDC 256GB is 108%. This is a particularly wide range which indicates that the Nvme PC SN520 WDC 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 355MB/s

Avg. 4K Random Write Speed 99.5MB/s

Average Bench

(Based on 41 samples)

Rank 179137%

Min	Avg	Max
368	Read 901	1,208
186	Write 960	1,228
283	Mixed 810	1,103
142	SusWrite 355	457
170% 756 MB/s

Min	Avg	Max
12	4K Read 36.6	47.6
11.1	4K Write 99.5	220
11.8	4K Mixed 50	69.2
172% 62 MB/s

Min	Avg	Max
18.5	DQ Read 655	860
71.9	DQ Write 525	1,017
53.3	DQ Mixed 530	734
413% 570 MB/s

User Benchmarks

Bench

Sequential

Random 4k

Deep queue 4k

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

GBR-User, 13 months ago.

170GB free (System drive)

Firmware: 20240012 Max speed: PCIe 16,000 MB/s

SusWrite @10s intervals: 428 420 444 419 425 426 MB/s

149% Outstanding

Write 994

Mixed 865

SusWrite 427

174% 771 MB/s

4K Read 40.9

4K Write 114

4K Mixed 57.6

196% 70.7 MB/s

DQ Read 785

DQ Write 552

DQ Mixed 574

454% 637 MB/s

CAN-User, 10 months ago.

203GB free (System drive)

Firmware: 20200012 Max speed: PCIe 16,000 MB/s

SusWrite @10s intervals: 443 398 387 398 409 418 MB/s

132% Outstanding

Write 984

Mixed 899

SusWrite 409

172% 764 MB/s

4K Read 34

4K Write 97

4K Mixed 50.8

168% 60.6 MB/s

DQ Read 687

DQ Write 416

DQ Mixed 510

391% 538 MB/s

ARE-User, 28 days ago.

200GB free (System drive)

Firmware: 20240012 Max speed: PCIe 16,000 MB/s

SusWrite @10s intervals: 465 412 407 418 427 424 MB/s

128% Outstanding

Write 796

Mixed 782

SusWrite 425

160% 710 MB/s

4K Read 40.2

4K Write 101

4K Mixed 38.3

164% 59.9 MB/s

DQ Read 597

DQ Write 261

DQ Mixed 386

297% 415 MB/s

GBR-User, 13 months ago.

168GB free (System drive)

Firmware: 20240012 Max speed: PCIe 16,000 MB/s

SusWrite @10s intervals: 426 405 417 417 430 427 MB/s

123% Outstanding

Write 854

Mixed 860

SusWrite 420

164% 727 MB/s

4K Read 33

4K Write 86.4

4K Mixed 44.8

153% 54.7 MB/s

DQ Read 489

DQ Write 366

DQ Mixed 388

301% 415 MB/s

IDN-User, 14 months ago.

130GB free (System drive)

Firmware: 20240012 Max speed: PCIe 16,000 MB/s

SusWrite @10s intervals: 470 461 412 423 420 396 MB/s

118% Outstanding

Write 607

Mixed 702

SusWrite 430

141% 627 MB/s

4K Read 37.2

4K Write 65.6

4K Mixed 42.6

146% 48.5 MB/s

DQ Read 448

DQ Write 241

DQ Mixed 327

248% 339 MB/s

USA-User, 11 months ago.

151GB free (System drive)

Firmware: 20240012 Max speed: PCIe 16,000 MB/s

SusWrite @10s intervals: 367 301 303 349 330 324 MB/s

106% Outstanding

Write 675

Mixed 690

SusWrite 329

132% 588 MB/s

4K Read 30.8

4K Write 71.9

4K Mixed 42

138% 48.2 MB/s

DQ Read 403

DQ Write 335

DQ Mixed 356

270% 365 MB/s

CAN-User, 4 months ago.

64GB free (System drive)

Firmware: 20240012 Max speed: PCIe 16,000 MB/s

SusWrite @10s intervals: 243 195 213 168 168 165 MB/s

83.3% Excellent

Write 671

Mixed 662

SusWrite 192

123% 550 MB/s

4K Read 16.1

4K Write 36.1

4K Mixed 20.2

69% 24.1 MB/s

DQ Read 606

DQ Write 441

DQ Mixed 477

369% 508 MB/s

41 MORE »

Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 77,054,736 SSDs tested

Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

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CPU

GPU

SSD

HDD

RAM

MBD

Typical PC SN520 WDC 256GB Builds (Compare 2,202 builds) See popular component choices, score breakdowns and rankings

Gaming 13%

Tree trunk

Desktop 75%

Battleship

Workstation 11%

Tree trunk

System: Dell Latitude 3420

CPU
Core i5-1135G7IntelBench 68%, 82,426 samples	1,256x
Core i7-1165G7IntelBench 66%, 51,565 samples	477x
Core i3-1115G4IntelBench 51%, 18,815 samples	268x

GPU
Iris XeIntelBench 14%, 144,774 samples	1,821x
UHD GraphicsIntelBench 9%, 39,662 samples	340x
GeForce MX450NvidiaBench 28%, 2,532 samples	28x

SSD
PC SN520 WDC 256GBNvmeBench 137%, 41 samples	1x

RAM
HMAA1GS6CJR6N-XN 1x8GBUnknownBench 32%, 13,137 samples	435x
M471A1G44BB0-CWE 1x8GBSamsungBench 34%, 7,899 samples	161x
HMAA2GS6CJR8N-XN 1x16GBUnknownBench 40%, 3,085 samples	148x

EDIT WITH CUSTOM PC BUILDER

Popular PC SN520 WDC 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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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.

1080 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 $170	Nvidia RTX 4060 $293	WD Black SN850X M.2 2TB $135
Intel Core i5-12400F $112	Nvidia RTX 4060-Ti $380	WD Black SN850X M.2 1TB $75
Intel Core i5-13600K $248	Nvidia RTX 4070 $500	Crucial T700 M.2 4TB $350

Nvme

PC SN520 WDC 256GB

Average Bench: 137% (179^th of 1080)

Popular builds with this SSD

Outstanding average bench

Strengths

Terrible consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

System: Dell Latitude 3420

Popular PC SN520 WDC 256GB systems:

UserBenchmark of the month

How it works

Group Test Results

Comments

Speed Comparisons

Frequently Asked Questions

Best User Rated

Nvme

PC SN520 WDC 256GB

Average Bench: 137% (179th of 1080)

Popular builds with this SSD

Outstanding average bench

Strengths

Terrible consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

System: Dell Latitude 3420

Popular PC SN520 WDC 256GB systems:

UserBenchmark of the month

How it works

Group Test Results

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Comments

Speed Comparisons

Frequently Asked Questions

Best User Rated

Feedback

Average Bench: 137% (179^th of 1080)