Average Bench: 138% (139th of 1026)

Based on 64 user benchmarks.  Model: SN520 SDAPNUW-256G-1004

Outstanding average bench

The Sn520 SDAPNUW-256G-1004 256GB averaged 37.6% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Sn520 SDAPNUW-256G-1004 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 563MB/s
Avg. 4K-64Thread Read Speed 677MB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the Sn520 SDAPNUW-256G-1004 256GB is 78.6%. This is a particularly wide range which indicates that the Sn520 SDAPNUW-256G-1004 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 394MB/s
Avg. Sequential Mixed IO Speed 662MB/s
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Average Bench

(Based on 64 samples)
Min Avg Max
461 Read 781 1,076
436 Write 723 953
322 Mixed 662 899
264 SusWrite 394 440
144% 640 MB/s
Min Avg Max
16.6 4K Read 37.2 47.3
63.1 4K Write 115 163
22.1 4K Mixed 49.3 69.2
180% 67.1 MB/s
Min Avg Max
317 DQ Read 677 857
129 DQ Write 533 982
165 DQ Mixed 563 729
432% 591 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
132GB free (System drive)
Firmware: 20200004
SusWrite @10s intervals: 484 423 409 423 416 421 MB/s
Read 731
Write 681
Mixed 676
SusWrite 429
142% 629 MB/s
4K Read 47.3
4K Write 164
4K Mixed 67
244% 92.6 MB/s
DQ Read 858
DQ Write 912
DQ Mixed 732
593% 834 MB/s
80GB free (System drive)
Firmware: 20100004
SusWrite @10s intervals: 462 454 422 425 363 260 MB/s
Read 788
Write 770
Mixed 682
SusWrite 398
148% 659 MB/s
4K Read 46.5
4K Write 148
4K Mixed 67.7
235% 87.3 MB/s
DQ Read 856
DQ Write 839
DQ Mixed 730
580% 808 MB/s
80GB free (System drive)
Firmware: 20100004
SusWrite @10s intervals: 291 328 288 281 279 268 MB/s
Read 905
Write 843
Mixed 730
SusWrite 289
155% 692 MB/s
4K Read 45
4K Write 146
4K Mixed 68
233% 86.4 MB/s
DQ Read 850
DQ Write 844
DQ Mixed 722
577% 805 MB/s
63GB free (System drive)
Firmware: 20300004
SusWrite @10s intervals: 326 274 299 270 260 275 MB/s
Read 893
Write 776
Mixed 707
SusWrite 284
149% 665 MB/s
4K Read 42.5
4K Write 116
4K Mixed 58.7
201% 72.3 MB/s
DQ Read 751
DQ Write 378
DQ Mixed 645
458% 591 MB/s
177GB free (System drive)
Firmware: 20200004
SusWrite @10s intervals: 291 311 377 323 410 412 MB/s
Read 855
Write 644
Mixed 626
SusWrite 354
138% 620 MB/s
4K Read 32
4K Write 81.5
4K Mixed 33.9
135% 49.1 MB/s
DQ Read 303
DQ Write 84.1
DQ Mixed 182
137% 190 MB/s
64 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 28,624,668 SSDs tested.

Typical SDAPNUW-256G-1004 256GB Builds (Compare 250 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 15%
Surfboard
Desktop
Desktop 69%
Battle cruiser
Workstation
Workstation 42%
Speed boat

System: Samsung 550XBE/350XBE

EDIT WITH CUSTOM PC BUILDER

Popular SDAPNUW-256G-1004 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.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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Solid State Drive Rankings (Price vs Performance) July 2020 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

1026 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 i5-9600K $190Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $47
Intel Core i5-9400F $150Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $339Nvidia RTX 2070S (Super) $510Samsung 850 Pro 512GB $249
HDDRAMUSB
Seagate Barracuda 1TB (2016) $42Corsair Vengeance LPX DDR4 3200 C16 2x8GB $67SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $70SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Extreme 16GB $24
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