Average Bench: 121% (189th of 1072)

Based on 4,055 user benchmarks.  Model: WDC PC SN520 SDAPNUW-128G-1006

Outstanding average bench

The WDC PC SN520 SDAPNUW-128G-1006 128GB averaged 20.5% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the WDC PC SN520 SDAPNUW-128G-1006 128GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 267MB/s
Avg. 4K Random Read Speed 50.9MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPNUW-128G-1006 128GB is 85.7%. This is a particularly wide range which indicates that the WDC PC SN520 SDAPNUW-128G-1006 128GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 186MB/s
Avg. Sequential Mixed IO Speed 478MB/s

Average Bench

(Based on 4,055 samples)
Min Avg Max
529 Read 857 980
49.5 Write 564 745
98.3 Mixed 478 722
43.2 SusWrite 186 233
116% 521 MB/s
Min Avg Max
18.4 4K Read 50.9 52.6
2.9 4K Write 101 170
5.94 4K Mixed 48.4 71
192% 66.7 MB/s
Min Avg Max
218 DQ Read 382 439
127 DQ Write 392 726
128 DQ Mixed 267 405
234% 347 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
47GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 184 171 201 161 161 159 MB/s
Read 663
Write 574
Mixed 595
SusWrite 173
112% 501 MB/s
4K Read 47.5
4K Write 154
4K Mixed 68.1
241% 89.9 MB/s
DQ Read 421
DQ Write 473
DQ Mixed 386
308% 427 MB/s
46GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 289 216 217 217 217 216 MB/s
Read 908
Write 755
Mixed 721
SusWrite 229
146% 653 MB/s
4K Read 45.9
4K Write 153
4K Mixed 66.8
236% 88.7 MB/s
DQ Read 51.4
DQ Write 220
DQ Mixed 77.6
77% 116 MB/s
4,055 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,134,089 SSDs tested

Typical PC SN520 SDAPNUW-128G-1006 128GB Builds (Compare 4,012 builds) See popular component choices, score breakdowns and rankings
Gaming 10%
Tree trunk
Desktop 65%
Workstation 9%
Tree trunk

System: HP Pavilion Gaming Laptop 15-cx0xxx


Popular PC SN520 SDAPNUW-128G-1006 128GB systems:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute

Welcome to our 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 value for money upgrades.

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  • - CPU tests include: integer, floating and string
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  • - Drive tests include: read, write, sustained write and mixed IO
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  • - SkillBench (space shooter) tests user input accuracy
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Solid State Drive Rankings (Price vs Performance) February 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]


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.


1072 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.
Intel Core i5-13600K $285Nvidia RTX 4060 $285Crucial MX500 250GB $31
Intel Core i5-12400F $146Nvidia RTX 4060-Ti $360Samsung 850 Evo 120GB $80
Intel Core i5-12600K $170Nvidia RTX 4070 $530Samsung 860 Evo 250GB $49
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $45SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $64G.SKILL Trident Z DDR4 3200 C14 4x16GB $346SanDisk Ultra Fit 32GB $16
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