Average Bench: 148% (145th of 1058)

Based on 403 user benchmarks.  Model: NVMe PC SN520 NVMe WD

Outstanding average bench

The Nvme PC SN520 WD 256GB averaged 48.4% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Nvme PC SN520 WD 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 594MB/s
Avg. 4K-64Thread Read Speed 707MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Nvme PC SN520 WD 256GB is 80.3%. This is a particularly wide range which indicates that the Nvme PC SN520 WD 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 391MB/s
Avg. 4K Random Write Speed 109MB/s
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Average Bench

(Based on 403 samples)
Min Avg Max
641 Read 948 1,211
518 Write 938 1214
451 Mixed 830 1,107
229 SusWrite 391 449
174% 777 MB/s
Min Avg Max
26.1 4K Read 41.7 47.5
54.9 4K Write 109 162
29.3 4K Mixed 53.2 69.7
189% 68 MB/s
Min Avg Max
310 DQ Read 707 859
190 DQ Write 581 992
220 DQ Mixed 594 731
459% 627 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
107GB free (System drive)
Firmware: 20200012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 366 361 310 307 316 314 MB/s
Read 1,077
Write 1,205
Mixed 1,100
SusWrite 329
208% 928 MB/s
4K Read 38.6
4K Write 126
4K Mixed 62.6
206% 75.9 MB/s
DQ Read 837
DQ Write 597
DQ Mixed 685
520% 706 MB/s
80GB free (System drive)
Firmware: 20200012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 475 435 405 391 311 357 MB/s
Read 661
Write 796
Mixed 695
SusWrite 396
144% 637 MB/s
4K Read 41.5
4K Write 126
4K Mixed 55.6
201% 74.5 MB/s
DQ Read 770
DQ Write 757
DQ Mixed 602
497% 710 MB/s
111GB free (System drive)
Firmware: 20240012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 463 386 426 418 425 424 MB/s
Read 921
Write 768
Mixed 743
SusWrite 424
160% 714 MB/s
4K Read 39
4K Write 92.4
4K Mixed 49.2
171% 60.2 MB/s
DQ Read 644
DQ Write 279
DQ Mixed 426
325% 450 MB/s
187GB free (System drive)
Firmware: 0012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 436 438 392 421 424 414 MB/s
Read 809
Write 702
Mixed 694
SusWrite 421
147% 656 MB/s
4K Read 34.8
4K Write 98.3
4K Mixed 52.6
172% 61.9 MB/s
DQ Read 789
DQ Write 292
DQ Mixed 562
410% 548 MB/s
183GB free (System drive)
Firmware: 20220012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 420 379 418 409 425 422 MB/s
Read 832
Write 831
Mixed 828
SusWrite 412
163% 726 MB/s
4K Read 39.8
4K Write 87.9
4K Mixed 52.7
174% 60.1 MB/s
DQ Read 312
DQ Write 342
DQ Mixed 359
261% 338 MB/s
65GB free (System drive)
Firmware: 20240012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 269 254 215 206 214 204 MB/s
Read 872
Write 1,081
Mixed 430
SusWrite 227
146% 653 MB/s
4K Read 32.9
4K Write 86.1
4K Mixed 44.4
152% 54.5 MB/s
DQ Read 835
DQ Write 549
DQ Mixed 715
527% 700 MB/s
93GB free (System drive)
Firmware: 20220012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 290 295 295 304 294 309 MB/s
Read 874
Write 262
Mixed 323
SusWrite 298
96% 439 MB/s
4K Read 28.4
4K Write 85.5
4K Mixed 39.7
139% 51.2 MB/s
DQ Read 486
DQ Write 358
DQ Mixed 366
289% 403 MB/s
36GB free (System drive)
Firmware: 20240012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 117 55 71 55 48 39 MB/s
Read 259
Write 137
Mixed 339
SusWrite 64.3
45% 200 MB/s
4K Read 11
4K Write 21.4
4K Mixed 22.1
56% 18.2 MB/s
DQ Read 210
DQ Write 109
DQ Mixed 113
96% 144 MB/s
403 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 46,946,519 SSDs tested.

Typical PC SN520 WD 256GB Builds (Compare 1,420 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 8%
Tree trunk
Desktop
Desktop 63%
Destroyer
Workstation
Workstation 7%
Tree trunk

System: Dell Latitude 5400

EDIT WITH CUSTOM PC BUILDER

Popular PC SN520 WD 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

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 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
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Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i7-11700K $350Nvidia RTX 3080 $700Samsung 850 Evo 120GB $183
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $78SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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