Average Bench: 145% (110th of 1003)

Based on 1,109 user benchmarks.  Model: WDC PC SN520 SDAPNUW-256G-1006

Outstanding average bench

The WDC PC SN520 SDAPNUW-256G-1006 256GB averaged 45.0% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the WDC PC SN520 SDAPNUW-256G-1006 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 590MB/s
Avg. 4K-64Thread Write Speed 659MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPNUW-256G-1006 256GB is 82%. This is a particularly wide range which indicates that the WDC PC SN520 SDAPNUW-256G-1006 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 408MB/s
Avg. Sequential Mixed IO Speed 694MB/s
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Average Bench

(Based on 1,109 samples)
Min Avg Max
394 Read 834 1,166
414 Write 737 1,086
440 Mixed 694 958
279 SusWrite 408 447
150% 668 MB/s
Min Avg Max
21.3 4K Read 38.5 47.1
50.9 4K Write 113 162
26.3 4K Mixed 52 68.8
185% 67.8 MB/s
Min Avg Max
49.3 DQ Read 682 858
196 DQ Write 659 1,043
74.9 DQ Mixed 590 732
465% 644 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
198GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 534 433 431 431 432 432 MB/s
Read 781
Write 721
Mixed 684
SusWrite 449
148% 659 MB/s
4K Read 43.6
4K Write 132
4K Mixed 63.6
218% 79.9 MB/s
DQ Read 854
DQ Write 1,193
DQ Mixed 723
631% 924 MB/s
181GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 512 413 419 420 420 419 MB/s
Read 724
Write 651
Mixed 628
SusWrite 434
137% 609 MB/s
4K Read 45.7
4K Write 140
4K Mixed 65.7
228% 83.8 MB/s
DQ Read 853
DQ Write 749
DQ Mixed 712
558% 771 MB/s
185GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 534 419 418 420 420 421 MB/s
Read 788
Write 698
Mixed 697
SusWrite 439
147% 655 MB/s
4K Read 42.1
4K Write 115
4K Mixed 60.3
202% 72.6 MB/s
DQ Read 854
DQ Write 864
DQ Mixed 723
581% 814 MB/s
158GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 494 475 426 433 434 432 MB/s
Read 846
Write 766
Mixed 763
SusWrite 449
159% 706 MB/s
4K Read 46.7
4K Write 139
4K Mixed 57.9
218% 81.1 MB/s
DQ Read 445
DQ Write 707
DQ Mixed 713
502% 622 MB/s
213GB free (System drive)
Firmware: 20120006
SusWrite @10s intervals: 420 388 425 421 422 427 MB/s
Read 756
Write 671
Mixed 629
SusWrite 417
139% 618 MB/s
4K Read 44.2
4K Write 131
4K Mixed 46.1
195% 73.7 MB/s
DQ Read 821
DQ Write 740
DQ Mixed 729
561% 763 MB/s
209GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 529 442 428 427 425 429 MB/s
Read 739
Write 691
Mixed 647
SusWrite 447
142% 631 MB/s
4K Read 43.5
4K Write 132
4K Mixed 63.1
216% 79.4 MB/s
DQ Read 38.7
DQ Write 131
DQ Mixed 57
52% 75.6 MB/s
85GB free (System drive)
Firmware: 20110006
SusWrite @10s intervals: 391 290 253 257 262 250 MB/s
Read 764
Write 717
Mixed 651
SusWrite 284
135% 604 MB/s
4K Read 39.9
4K Write 82.5
4K Mixed 53.4
173% 58.6 MB/s
DQ Read 614
DQ Write 457
DQ Mixed 544
404% 538 MB/s
1,109 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 15,781,594 SSDs tested.

Typical PC SN520 SDAPNUW-256G-1006 256GB Builds (Compare 162 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 17%
Surfboard
Desktop
Desktop 71%
Battleship
Workstation
Workstation 39%
Jet ski

System: HP ProBook 450 G6

EDIT WITH CUSTOM PC BUILDER

Popular PC SN520 SDAPNUW-256G-1006 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) July 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

1003 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 i7-8700K $350Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
AMD Ryzen 5 2600 $127Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $248Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $68SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $606SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Ultra Fit 32GB $12
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