Average Bench: 137% (174th of 1074)

Based on 4,380 user benchmarks.  Model: PC SN520 NVMe WDC 256GB

Outstanding average bench

The PC SN520 NVMe WDC 256GB averaged 36.7% 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 530MB/s
Avg. 4K-64Thread Read Speed 654MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the PC SN520 NVMe WDC 256GB is 102%. 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 321MB/s
Avg. 4K Random Write Speed 100MB/s
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Average Bench

(Based on 4,380 samples)
Min Avg Max
486 Read 896 1,199
224 Write 805 1,187
334 Mixed 687 1,014
163 SusWrite 321 441
152% 677 MB/s
Min Avg Max
20.7 4K Read 41.5 47.2
33.8 4K Write 100 156
23.9 4K Mixed 50.8 68.7
181% 64.2 MB/s
Min Avg Max
178 DQ Read 654 857
94.8 DQ Write 504 967
144 DQ Mixed 530 731
410% 563 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
163GB free (System drive)
Firmware: 20240012 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 516 422 424 429 427 426 MB/s
Read 782
Write 745
Mixed 702
SusWrite 440
150% 668 MB/s
4K Read 43.4
4K Write 139
4K Mixed 63.2
220% 81.9 MB/s
DQ Read 822
DQ Write 611
DQ Mixed 648
503% 694 MB/s
139GB free (System drive)
Firmware: 20220012 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 529 424 370 363 363 158 MB/s
Read 982
Write 894
Mixed 843
SusWrite 368
173% 772 MB/s
4K Read 33.1
4K Write 71.9
4K Mixed 45.4
146% 50.1 MB/s
DQ Read 594
DQ Write 334
DQ Mixed 440
334% 456 MB/s
160GB free
Firmware: 20140012 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 494 388 421 423 409 426 MB/s
Read 864
Write 857
Mixed 793
SusWrite 427
165% 735 MB/s
4K Read 18.9
4K Write 58
4K Mixed 23.2
89% 33.4 MB/s
DQ Read 504
DQ Write 339
DQ Mixed 461
333% 435 MB/s
205GB free (System drive)
Firmware: 20200012 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 352 392 392 273 338 322 MB/s
Read 712
Write 560
Mixed 584
SusWrite 345
123% 550 MB/s
4K Read 25.7
4K Write 57.1
4K Mixed 40.5
121% 41.1 MB/s
DQ Read 456
DQ Write 207
DQ Mixed 417
286% 360 MB/s
67GB free (System drive)
Firmware: 20240012 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 237 206 198 200 199 203 MB/s
Read 790
Write 361
Mixed 424
SusWrite 207
98% 446 MB/s
4K Read 31.1
4K Write 94.5
4K Mixed 33.4
140% 53 MB/s
DQ Read 424
DQ Write 233
DQ Mixed 398
278% 352 MB/s
195GB free (System drive)
Firmware: 20220012 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 379 418 416 373 301 416 MB/s
Read 636
Write 560
Mixed 646
SusWrite 384
125% 557 MB/s
4K Read 29.8
4K Write 48.5
4K Mixed 35
116% 37.8 MB/s
DQ Read 220
DQ Write 103
DQ Mixed 159
119% 161 MB/s
4,380 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,944,963 SSDs tested

Typical SN520 NVMe WDC 256GB Builds (Compare 2,155 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 7%
Tree trunk
Desktop
Desktop 58%
Gunboat
Workstation
Workstation 7%
Tree trunk

System: Dell Latitude 5400

EDIT WITH CUSTOM PC BUILDER

Popular SN520 NVMe WDC 256GB systems:

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Solid State Drive Rankings (Price vs Performance) May 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]

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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

1074 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 i5-12600K $171Nvidia RTX 4060 $293Crucial MX500 250GB $39
Intel Core i5-13600K $273Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i3-12100F $80Nvidia RTX 4070 $500Samsung 870 Evo 250GB $45
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $29Corsair Vengeance LPX DDR4 3000 C15 2x8GB $48SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $62G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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