Average Bench: 148% (147th of 1058)

Based on 2,592 user benchmarks.  Model: NVMe WDC PC SN520 SDA

Outstanding average bench

The Nvme WDC PC SN520 SDA 256GB averaged 47.9% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Nvme WDC PC SN520 SDA 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 592MB/s
Avg. 4K-64Thread Read Speed 734MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Nvme WDC PC SN520 SDA 256GB is 80.5%. This is a particularly wide range which indicates that the Nvme WDC PC SN520 SDA 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 370MB/s
Avg. 4K Random Read Speed 38.6MB/s
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Average Bench

(Based on 2,592 samples)
Min Avg Max
654 Read 965 1,235
558 Write 1,036 1,229
414 Mixed 856 1,107
230 SusWrite 370 448
181% 807 MB/s
Min Avg Max
20.3 4K Read 38.6 47.6
56.7 4K Write 111 164
26.4 4K Mixed 53.1 69.2
185% 67.6 MB/s
Min Avg Max
349 DQ Read 734 858
189 DQ Write 596 901
203 DQ Mixed 592 729
463% 641 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
205GB free (System drive)
Firmware: 0000 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 598 426 427 429 429 427 MB/s
Read 1,107
Write 1,135
Mixed 1049
SusWrite 456
210% 937 MB/s
4K Read 43.8
4K Write 109
4K Mixed 60.1
201% 70.9 MB/s
DQ Read 856
DQ Write 933
DQ Mixed 721
590% 837 MB/s
198GB free (System drive)
Firmware: 0000 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 503 424 428 430 429 428 MB/s
Read 865
Write 1,177
Mixed 1,021
SusWrite 440
198% 876 MB/s
4K Read 42.7
4K Write 102
4K Mixed 56.5
191% 67 MB/s
DQ Read 855
DQ Write 791
DQ Mixed 725
571% 790 MB/s
205GB free (System drive)
Firmware: 0000 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 476 474 429 445 428 420 MB/s
Read 863
Write 1,187
Mixed 983
SusWrite 445
196% 870 MB/s
4K Read 37.4
4K Write 95.2
4K Mixed 52.4
174% 61.7 MB/s
DQ Read 853
DQ Write 850
DQ Mixed 721
578% 808 MB/s
79GB free (System drive)
Firmware: 20110000 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 464 480 405 203 192 191 MB/s
Read 1,109
Write 1,161
Mixed 1,037
SusWrite 322
204% 908 MB/s
4K Read 38.5
4K Write 99.8
4K Mixed 54.4
181% 64.2 MB/s
DQ Read 822
DQ Write 652
DQ Mixed 718
542% 731 MB/s
126GB free (System drive)
Firmware: 0000 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 212 384 344 344 344 298 MB/s
Read 1,039
Write 1,205
Mixed 1,095
SusWrite 321
206% 915 MB/s
4K Read 42.5
4K Write 140
4K Mixed 52.8
206% 78.3 MB/s
DQ Read 616
DQ Write 554
DQ Mixed 598
445% 589 MB/s
131GB free (System drive)
Firmware: 20110000 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 388 356 318 316 301 297 MB/s
Read 754
Write 1,103
Mixed 596
SusWrite 329
157% 695 MB/s
4K Read 37.7
4K Write 99.3
4K Mixed 52.8
177% 63.3 MB/s
DQ Read 850
DQ Write 658
DQ Mixed 709
543% 739 MB/s
124GB free (System drive)
Firmware: 0000 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 171 269 280 290 287 279 MB/s
Read 708
Write 279
Mixed 238
SusWrite 263
82% 372 MB/s
4K Read 33
4K Write 116
4K Mixed 45.6
170% 64.9 MB/s
DQ Read 643
DQ Write 281
DQ Mixed 307
268% 410 MB/s
2,592 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,227,476 SSDs tested.

Typical WDC PC SN520 SDA 256GB Builds (Compare 1,196 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 8%
Tree trunk
Desktop
Desktop 71%
Battleship
Workstation
Workstation 8%
Tree trunk

System: Asus TUF Gaming FX505GE_FX505GE

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 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.
  • - 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

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Seagate Barracuda 2TB (2016) $72G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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