Amd-raid

WDC PC SN520 SDA 256GB

WDC PC SN520 SDA 256GB
BENCHMARKS (25)
MKT (0%)
BUILDS
(0)

Effective Speed +13% Effective Speed 13%Average Score +35% Read 83%, Write 109%, 4K Read -32%, 4K Write -13%, Mixed 99%, 4K Mixed -28%, SusWrite 25%Peak Score +61% Read 123%, Write 152%, 4K Read -15%, 4K Write 18%, Mixed 142%, 4K Mixed -12%, SusWrite 17%Value & Sentiment User Rating -14%, Market Share -∞%Nice To Haves +37% DQ Read -55%, DQ Write 217%, DQ Mixed -14%, ADQ Read -57%, ADQ Write 87%, ADQ Mixed -1%, Age 59%, AS-SSD Total 62%

Average Bench: 112% (210^th of 1072)

Based on 25 user benchmarks. Model: AMD-RAID WDC PC SN520 SDA

Poor: 65%Average: 112% Great: 158%

Popular builds with this SSD

Outstanding average bench

The Amd-raid WDC PC SN520 SDA 256GB averaged 11.5% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Amd-raid WDC PC SN520 SDA 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 257MB/s

Avg. 4K-64Thread Write Speed 541MB/s

See where your SSD ranks →

Terrible consistency

The range of scores (95th - 5th percentile) for the Amd-raid WDC PC SN520 SDA 256GB is 93.2%. This is a particularly wide range which indicates that the Amd-raid WDC PC SN520 SDA 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Read Speed 208MB/s

Avg. Sustained Write Speed 370MB/s

Average Bench

(Based on 25 samples)

Rank 210112%

Min	Avg	Max
239	Read 839	1,132
226	Write 849	1,223
301	Mixed 715	1,024
168	SusWrite 370	454
156% 693 MB/s

Min	Avg	Max
8.6	4K Read 26	37.4
12.4	4K Write 77.6	144
16.1	4K Mixed 35.1	52.1
125% 46.2 MB/s

Min	Avg	Max
131	DQ Read 208	237
118	DQ Write 541	1,135
165	DQ Mixed 257	291
230% 335 MB/s

User Benchmarks

Bench

Sequential

Random 4k

Deep queue 4k

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

USA-User, 11 months ago.

172GB free (System drive)

Firmware: 2012

SusWrite @10s intervals: 325 316 358 287 273 305 MB/s

107% Outstanding

Write 398

Mixed 471

SusWrite 310

109% 491 MB/s

4K Read 26.4

4K Write 90.1

4K Mixed 41.2

140% 52.6 MB/s

DQ Read 209

DQ Write 382

DQ Mixed 232

194% 274 MB/s

USA-User, 4 months ago.

103GB free (System drive)

Firmware: 2011

SusWrite @10s intervals: 439 389 402 370 382 332 MB/s

105% Outstanding

Write 754

Mixed 778

SusWrite 386

155% 691 MB/s

4K Read 23

4K Write 58.1

4K Mixed 33.2

108% 38.1 MB/s

DQ Read 228

DQ Write 376

DQ Mixed 288

222% 297 MB/s

PRT-User, 10 months ago.

98GB free (System drive)

Firmware: 2012

SusWrite @10s intervals: 379 320 317 301 304 320 MB/s

93.2% Outstanding

Write 814

Mixed 609

SusWrite 324

142% 634 MB/s

4K Read 23.9

4K Write 53.4

4K Mixed 24.4

96% 33.9 MB/s

DQ Read 232

DQ Write 344

DQ Mixed 280

214% 285 MB/s

CAN-User, 7 months ago.

72GB free (System drive)

Firmware: 2011

SusWrite @10s intervals: 288 304 273 281 288 280 MB/s

85.7% Excellent

Write 233

Mixed 438

SusWrite 286

95% 432 MB/s

4K Read 21.1

4K Write 55

4K Mixed 23.3

91% 33.1 MB/s

DQ Read 142

DQ Write 293

DQ Mixed 235

174% 223 MB/s

CAN-User, 7 months ago.

113GB free (System drive)

Firmware: 2011

SusWrite @10s intervals: 370 374 365 332 322 292 MB/s

77.6% Very good

Write 476

Mixed 443

SusWrite 342

102% 453 MB/s

4K Read 18.6

4K Write 39

4K Mixed 24

80% 27.2 MB/s

DQ Read 211

DQ Write 232

DQ Mixed 279

194% 241 MB/s

USA-User, 6 days ago.

53GB free (System drive)

Firmware: 2012

SusWrite @10s intervals: 243 258 200 170 170 169 MB/s

65% Good

Write 284

Mixed 500

SusWrite 202

85% 380 MB/s

4K Read 16.5

4K Write 34.4

4K Mixed 18.7

67% 23.2 MB/s

DQ Read 137

DQ Write 347

DQ Mixed 170

150% 218 MB/s

USA-User, 2 years ago.

170GB free (System drive)

Firmware: 2012

SusWrite @10s intervals: 377 365 349 382 396 406 MB/s

52.2% Above average

Write 226

Mixed 301

SusWrite 379

65% 287 MB/s

4K Read 8.6

4K Write 12.4

4K Mixed 16.1

40% 12.4 MB/s

DQ Read 168

DQ Write 118

DQ Mixed 165

117% 150 MB/s

25 MORE »

Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,756,700 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 WDC PC SN520 SDA 256GB Builds (Compare 138 builds) See popular component choices, score breakdowns and rankings

Gaming 11%

Tree trunk

Desktop 54%

Yacht

Workstation 10%

Tree trunk

System: HP ENVY x360 Convertible 13-ag0xxx

CPU
Ryzen 5 2500UAMDBench 49%, 61,910 samples	97x
Ryzen 3 2300UAMDBench 55%, 3,165 samples	24x
Ryzen 7 2700UAMDBench 52%, 8,291 samples	16x

GPU
RX Vega 8 (Ryzen iGPU)AMDBench 10%, 85,536 samples	98x
RX Vega 6 (Ryzen iGPU)AMDBench 8%, 2,318 samples	24x
Radeon RX Vega 10 GraphicsAMDBench 10%, 4,933 samples	16x

SSD
WDC PC SN520 SDA 256GBAmd-raidBench 112%, 25 samples	1x

RAM
M471A5244CB0-CTD 2x4GBSamsungBench 60%, 54,777 samples	49x
HMA851S6AFR6N-UH 2x4GBHynixBench 57%, 26,973 samples	30x
HMA851S6CJR6N-VK 2x4GBHynixBench 61%, 15,613 samples	25x

EDIT WITH CUSTOM PC BUILDER

Popular WDC PC SN520 SDA 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) April 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]

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.

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 »

CPU	GPU	SSD
Intel Core i5-13600K $269	Nvidia RTX 4060 $295	Crucial MX500 250GB $40
Intel Core i5-12400F $133	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $177	Nvidia RTX 4070 $539	Samsung 860 Evo 250GB $52

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $39	Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40	SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43	SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51	G.SKILL Trident Z DDR4 3200 C14 4x16GB $351	SanDisk Ultra Fit 32GB $16

Amd-raid

WDC PC SN520 SDA 256GB

Average Bench: 112% (210^th of 1072)

Popular builds with this SSD

Outstanding average bench

Strengths

Terrible consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

System: HP ENVY x360 Convertible 13-ag0xxx

Popular WDC PC SN520 SDA 256GB systems:

UserBenchmark of the month

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Group Test Results

Comments

Speed Comparisons

Frequently Asked Questions

Best User Rated

Amd-raid

WDC PC SN520 SDA 256GB

Average Bench: 112% (210th of 1072)

Popular builds with this SSD

Outstanding average bench

Strengths

Terrible consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

System: HP ENVY x360 Convertible 13-ag0xxx

Popular WDC PC SN520 SDA 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

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Average Bench: 112% (210^th of 1072)