Average Bench: 139% (156th of 1058)

Based on 3,548 user benchmarks.  Model: PC SN520 NVMe WDC 256GB

Outstanding average bench

The PC SN520 NVMe WDC 256GB averaged 39.0% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the PC SN520 NVMe WDC 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 561MB/s
Avg. 4K-64Thread Read Speed 681MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the PC SN520 NVMe WDC 256GB is 91.3%. This is a particularly wide range which indicates that the PC SN520 NVMe WDC 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 335MB/s
Avg. 4K Random Write Speed 104MB/s
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Average Bench

(Based on 3,548 samples)
Min Avg Max
562 Read 901 1,196
273 Write 845 1,205
346 Mixed 743 1,073
194 SusWrite 335 444
158% 706 MB/s
Min Avg Max
20.9 4K Read 38.2 47.2
49.1 4K Write 104 161
25.4 4K Mixed 51.3 69.1
179% 64.6 MB/s
Min Avg Max
265 DQ Read 681 857
143 DQ Write 547 979
190 DQ Mixed 561 731
435% 597 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
171GB free (System drive)
Firmware: 20240012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 370 390 396 415 402 398 MB/s
Read 940
Write 948
Mixed 484
SusWrite 395
155% 692 MB/s
4K Read 31.8
4K Write 114
4K Mixed 55.5
180% 67.1 MB/s
DQ Read 834
DQ Write 781
DQ Mixed 383
404% 666 MB/s
59GB free (System drive)
Firmware: 20240012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 191 131 197 129 124 122 MB/s
Read 891
Write 830
Mixed 815
SusWrite 149
150% 671 MB/s
4K Read 39.3
4K Write 69.1
4K Mixed 46.8
156% 51.7 MB/s
DQ Read 750
DQ Write 344
DQ Mixed 501
384% 532 MB/s
117GB free (System drive)
Firmware: 20220012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 333 249 258 246 259 253 MB/s
Read 819
Write 736
Mixed 803
SusWrite 266
147% 656 MB/s
4K Read 39.1
4K Write 84.1
4K Mixed 51.3
170% 58.2 MB/s
DQ Read 40.9
DQ Write 102
DQ Mixed 56
47% 66.2 MB/s
56GB free (System drive)
Firmware: 20240012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 154 204 226 234 215 191 MB/s
Read 694
Write 235
Mixed 389
SusWrite 204
84% 380 MB/s
4K Read 23.1
4K Write 81.4
4K Mixed 36.1
124% 46.9 MB/s
DQ Read 640
DQ Write 288
DQ Mixed 314
273% 414 MB/s
157GB free (System drive)
Firmware: 20240012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 324 202 173 160 161 161 MB/s
Read 1,014
Write 556
Mixed 781
SusWrite 197
142% 637 MB/s
4K Read 41.2
4K Write 11.3
4K Mixed 17.5
91% 23.3 MB/s
DQ Read 630
DQ Write 131
DQ Mixed 90.5
141% 284 MB/s
3,548 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 43,081,707 SSDs tested.

Typical SN520 NVMe WDC 256GB Builds (Compare 3,903 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 9%
Tree trunk
Desktop
Desktop 67%
Battle cruiser
Workstation
Workstation 8%
Tree trunk

System: Dell Inspiron 3593

EDIT WITH CUSTOM PC BUILDER

Popular SN520 NVMe WDC 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.

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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.
  • - 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) May 2021 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

1058 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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-11400F $210Nvidia RTX 3060-Ti $400Crucial MX500 250GB $49
Intel Core i5-11600K $255Nvidia RTX 3070 $500Samsung 850 Evo 120GB $78
Intel Core i5-10600K $210Nvidia RTX 3080 $700Samsung 860 Evo 250GB $50
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $102SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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