Average Bench: 76.1% (496th of 1018)

Based on 207 user benchmarks.  Model: APPLE SSD SD0256F

Good average bench

The Apple SD0256F 251GB averaged 23.9% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Apple SD0256F 251GB near the top of the comparison list.


Avg. Sequential Read Speed 536MB/s
Avg. Sequential Write Speed 423MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Apple SD0256F 251GB is 47.4%. This is a relatively wide range which indicates that the Apple SD0256F 251GB performs inconsistently under varying real world conditions.


Avg. 4K Random Mixed IO Speed 16.3MB/s
Avg. 4K Random Write Speed 42MB/s

Average Bench

(Based on 207 samples)
Min Avg Max
435 Read 536 599
241 Write 423 527
217 Mixed 360 493
212 SusWrite 373 500
94.8% 423 MB/s
Min Avg Max
11.5 4K Read 18.2 31.3
19.1 4K Write 42 98.6
7.22 4K Mixed 16.3 28.2
70.7% 25.5 MB/s
Min Avg Max
12.6 DQ Read 204 431
21.7 DQ Write 181 269
7.28 DQ Mixed 66.4 143
84.3% 150 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
189GB free (System drive)
Firmware: A222821
SusWrite @10s intervals: 526 535 474 453 537 533 MB/s
Read 572
Write 528
Mixed 282
SusWrite 510
106% 473 MB/s
4K Read 20
4K Write 63.4
4K Mixed 29.4
102% 37.6 MB/s
DQ Read 382
DQ Write 272
DQ Mixed 141
156% 265 MB/s
34GB free (System drive)
Firmware: A222821
SusWrite @10s intervals: 383 294 287 276 266 258 MB/s
Read 577
Write 474
Mixed 318
SusWrite 294
93% 416 MB/s
4K Read 19.1
4K Write 80.6
4K Mixed 22.8
101% 40.8 MB/s
DQ Read 424
DQ Write 261
DQ Mixed 127
153% 271 MB/s
207 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 23,784,338 SSDs tested.

Typical SD0256F 251GB Builds (Compare 210 builds) See popular component choices, score breakdowns and rankings.
Gaming 12%
Tree trunk
Desktop 36%
Jet ski
Workstation 15%

System: Apple MacBookAir6,2


Popular SD0256F 251GB 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.

UserBenchmark of the month

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.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) March 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]


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.


1018 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 i5-9400F $150Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $49
Intel Core i5-9600K $210Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $357Nvidia RTX 2070S (Super) $505Samsung 850 Pro 512GB $249
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Ultra Fit 32GB $16
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