Average Bench: 76.6% (507th of 1037)

Based on 232 user benchmarks.  Model: APPLE SSD SD0256F

Good average bench

The Apple SD0256F 251GB averaged 23.4% 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 533MB/s
Avg. 4K-64Thread Mixed IO Speed 74MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Apple SD0256F 251GB is 46.3%. 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 16.7MB/s
Avg. 4K Random Write Speed 41.6MB/s

Average Bench

(Based on 232 samples)
Min Avg Max
437 Read 533 598
243 Write 425 526
217 Mixed 349 493
215 SusWrite 381 499
94.5% 422 MB/s
Min Avg Max
11.5 4K Read 18 30.7
19.5 4K Write 41.6 94.2
7.32 4K Mixed 16.7 28.1
70.6% 25.4 MB/s
Min Avg Max
12.8 DQ Read 225 432
22.4 DQ Write 189 269
7.4 DQ Mixed 74 143
91.6% 162 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
56GB free (System drive)
Firmware: A222821
SusWrite @10s intervals: 412 332 330 334 313 316 MB/s
Read 581
Write 466
Mixed 224
SusWrite 340
90% 403 MB/s
4K Read 27.9
4K Write 81.3
4K Mixed 30.4
124% 46.5 MB/s
DQ Read 425
DQ Write 269
DQ Mixed 144
162% 279 MB/s
52GB free (System drive)
Firmware: A223321
SusWrite @10s intervals: 451 469 540 511 490 475 MB/s
Read 542
Write 509
Mixed 261
SusWrite 489
101% 450 MB/s
4K Read 15.9
4K Write 30
4K Mixed 20.1
66% 22 MB/s
DQ Read 435
DQ Write 233
DQ Mixed 136
154% 268 MB/s
30GB free (System drive)
Firmware: A222821
SusWrite @10s intervals: 403 480 474 482 466 459 MB/s
Read 500
Write 481
Mixed 261
SusWrite 461
96% 426 MB/s
4K Read 14.4
4K Write 28.4
4K Mixed 19.6
62% 20.8 MB/s
DQ Read 435
DQ Write 255
DQ Mixed 136
157% 275 MB/s
232 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 31,611,480 SSDs tested.

Typical SD0256F 251GB Builds (Compare 55 builds) See popular component choices, score breakdowns and rankings.
Gaming 2%
Tree trunk
Desktop 51%
Workstation 2%
Tree trunk

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) September 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.


1037 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 i5-9600K $195Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $45
Intel Core i5-9400F $140Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $289Nvidia RTX 2070S (Super) $505Samsung 860 Evo 250GB $43
Seagate Barracuda 1TB (2016) $35Corsair Vengeance LPX DDR4 3200 C16 2x8GB $69SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 32GB $30
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Extreme 16GB $28
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