Average Bench: 146% (134th of 1040)

Based on 4,025 user benchmarks.  Model: WDC PC SN520 SDAPMUW-256G-1101

Outstanding average bench

The WDC PC SN520 SDAPMUW-256G-1101 256GB averaged 46.4% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the WDC PC SN520 SDAPMUW-256G-1101 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 606MB/s
Avg. 4K-64Thread Write Speed 633MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPMUW-256G-1101 256GB is 89.3%. This is a particularly wide range which indicates that the WDC PC SN520 SDAPMUW-256G-1101 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 355MB/s
Avg. Sequential Mixed IO Speed 737MB/s
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Average Bench

(Based on 4,025 samples)
Min Avg Max
596 Read 916 1,191
390 Write 835 1,166
455 Mixed 737 997
213 SusWrite 355 443
159% 711 MB/s
Min Avg Max
18.7 4K Read 38.9 47.5
49.7 4K Write 115 163
24.5 4K Mixed 53.2 70.1
188% 69.2 MB/s
Min Avg Max
284 DQ Read 719 858
168 DQ Write 633 1,015
226 DQ Mixed 606 732
473% 653 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
199GB free (System drive)
Firmware: 20290001
SusWrite @10s intervals: 508 413 414 416 412 416 MB/s
Read 1,182
Write 1,095
Mixed 976
SusWrite 430
206% 921 MB/s
4K Read 47.8
4K Write 149
4K Mixed 69.2
240% 88.5 MB/s
DQ Read 826
DQ Write 898
DQ Mixed 717
580% 814 MB/s
127GB free (System drive)
Firmware: 20240001
SusWrite @10s intervals: 353 457 403 400 327 334 MB/s
Read 1,138
Write 1,090
Mixed 740
SusWrite 379
187% 837 MB/s
4K Read 43.8
4K Write 120
4K Mixed 61.4
209% 75.2 MB/s
DQ Read 857
DQ Write 947
DQ Mixed 727
595% 843 MB/s
140GB free (System drive)
Firmware: 20110001
SusWrite @10s intervals: 537 429 429 432 432 431 MB/s
Read 746
Write 704
Mixed 673
SusWrite 448
144% 643 MB/s
4K Read 46.4
4K Write 147
4K Mixed 67.3
234% 86.9 MB/s
DQ Read 854
DQ Write 647
DQ Mixed 700
537% 734 MB/s
133GB free (System drive)
Firmware: 20240001
SusWrite @10s intervals: 526 421 322 313 365 360 MB/s
Read 1,197
Write 1157
Mixed 681
SusWrite 384
191% 855 MB/s
4K Read 34.5
4K Write 119
4K Mixed 55.1
186% 69.5 MB/s
DQ Read 774
DQ Write 689
DQ Mixed 724
545% 729 MB/s
85GB free (System drive)
Firmware: 20210001
SusWrite @10s intervals: 321 304 254 248 246 252 MB/s
Read 695
Write 682
Mixed 638
SusWrite 271
128% 572 MB/s
4K Read 45.1
4K Write 133
4K Mixed 64.9
222% 81.1 MB/s
DQ Read 860
DQ Write 850
DQ Mixed 729
582% 813 MB/s
107GB free (System drive)
Firmware: 20290001
SusWrite @10s intervals: 379 265 324 260 252 251 MB/s
Read 1,194
Write 1,172
Mixed 835
SusWrite 289
195% 872 MB/s
4K Read 31.5
4K Write 112
4K Mixed 55.5
178% 66.4 MB/s
DQ Read 747
DQ Write 316
DQ Mixed 496
377% 520 MB/s
140GB free (System drive)
Firmware: 20110001
SusWrite @10s intervals: 426 384 414 409 422 427 MB/s
Read 994
Write 818
Mixed 873
SusWrite 414
174% 774 MB/s
4K Read 23.8
4K Write 78.4
4K Mixed 27.7
113% 43.3 MB/s
DQ Read 394
DQ Write 290
DQ Mixed 344
257% 342 MB/s
4,025 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 38,282,042 SSDs tested.

Typical PC SN520 SDAPMUW-256G-1101 256GB Builds (Compare 793 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 11%
Tree trunk
Desktop
Desktop 69%
Battle cruiser
Workstation
Workstation 11%
Tree trunk

System: Lenovo 81W8

EDIT WITH CUSTOM PC BUILDER

Popular PC SN520 SDAPMUW-256G-1101 256GB systems:

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

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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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Solid State Drive Rankings (Price vs Performance) January 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

1040 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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The Best.
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Intel Core i5-10600K $257Nvidia RTX 3070 $500Samsung 850 Evo 120GB $78
Intel Core i5-10400F $161Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $40
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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