Average Bench: 146% (116th of 1011)

Based on 706 user benchmarks.  Model: PC SN520 NVMe WDC 256GB

Outstanding average bench

The PC SN520 NVMe WDC 256GB averaged 45.7% 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 597MB/s
Avg. 4K-64Thread Read Speed 702MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the PC SN520 NVMe WDC 256GB is 69.8%. 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 410MB/s
Avg. 4K Random Write Speed 105MB/s
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Average Bench

(Based on 706 samples)
Min Avg Max
607 Read 912 1,163
593 Write 919 1,209
502 Mixed 807 1,088
306 SusWrite 410 447
171% 762 MB/s
Min Avg Max
23.5 4K Read 38.5 45.9
62 4K Write 105 147
29 4K Mixed 51.6 64.5
180% 65.2 MB/s
Min Avg Max
309 DQ Read 702 858
225 DQ Write 577 957
323 DQ Mixed 597 729
459% 625 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
137GB free (System drive)
Firmware: 20220012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 359 429 431 429 414 340 MB/s
Read 1,044
Write 1,154
Mixed 1,103
SusWrite 400
208% 925 MB/s
4K Read 43.9
4K Write 134
4K Mixed 65.8
222% 81.3 MB/s
DQ Read 826
DQ Write 910
DQ Mixed 734
589% 823 MB/s
193GB free (System drive)
Firmware: 20220012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 475 420 404 411 414 412 MB/s
Read 1086
Write 889
Mixed 944
SusWrite 423
187% 835 MB/s
4K Read 42.6
4K Write 120
4K Mixed 59.7
205% 74.2 MB/s
DQ Read 657
DQ Write 707
DQ Mixed 672
508% 679 MB/s
185GB free (System drive)
Firmware: 20200012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 459 478 428 428 431 430 MB/s
Read 959
Write 853
Mixed 869
SusWrite 442
175% 781 MB/s
4K Read 43.1
4K Write 119
4K Mixed 60.6
206% 74.2 MB/s
DQ Read 856
DQ Write 351
DQ Mixed 613
451% 607 MB/s
153GB free (System drive)
Firmware: 20200012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 389 416 410 414 412 411 MB/s
Read 995
Write 1,121
Mixed 492
SusWrite 409
169% 754 MB/s
4K Read 32.3
4K Write 97.2
4K Mixed 51.5
166% 60.3 MB/s
DQ Read 796
DQ Write 924
DQ Mixed 713
578% 811 MB/s
95GB free (System drive)
Firmware: 20140012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 368 278 320 262 251 258 MB/s
Read 912
Write 933
Mixed 891
SusWrite 289
170% 756 MB/s
4K Read 35.7
4K Write 93
4K Mixed 50.4
168% 59.7 MB/s
DQ Read 811
DQ Write 1,011
DQ Mixed 691
583% 838 MB/s
55GB free (System drive)
Firmware: 20200012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 299 235 283 234 224 229 MB/s
Read 1,057
Write 928
Mixed 906
SusWrite 250
176% 785 MB/s
4K Read 37.5
4K Write 82.7
4K Mixed 50.4
165% 56.9 MB/s
DQ Read 518
DQ Write 528
DQ Mixed 532
398% 526 MB/s
143GB free (System drive)
Firmware: 20220012 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 435 411 417 418 417 404 MB/s
Read 414
Write 610
Mixed 570
SusWrite 417
114% 503 MB/s
4K Read 31.2
4K Write 62.5
4K Mixed 36.8
128% 43.5 MB/s
DQ Read 669
DQ Write 245
DQ Mixed 672
440% 529 MB/s
706 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 19,367,628 SSDs tested.

Typical SN520 NVMe WDC 256GB Builds (Compare 7,237 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 15%
Surfboard
Desktop
Desktop 74%
Battleship
Workstation
Workstation 47%
Yacht

System: Dell G3 3579

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.
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  • - 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.
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  • - 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) November 2019 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

1011 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 i5-9400F $140Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $45
Intel Core i5-9600K $195AMD RX 590 $185Samsung 850 Evo 120GB $150
Intel Core i7-9700K $340Nvidia RTX 2060 $325Samsung 860 Evo 250GB $51
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $609SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85Corsair Vengeance LPX DDR4 3200 C16 2x8GB $68SanDisk Extreme 16GB $24
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