Average Bench: 176% (91st of 1016)

Based on 65 user benchmarks.  Model: APPLE SSD SM0256L

Outstanding average bench

The Apple SM0256L 251GB averaged 76.3% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Apple SM0256L 251GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 633MB/s
Avg. 4K-64Thread Read Speed 1,047MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Apple SM0256L 251GB is 147%. This is a particularly wide range which indicates that the Apple SM0256L 251GB performs inconsistently under varying real world conditions.


Avg. 4K Random Mixed IO Speed 22.8MB/s
Avg. 4K Random Write Speed 55.8MB/s

Average Bench

(Based on 65 samples)
Min Avg Max
895 Read 1,324 1,732
52.9 Write 1,000 1,440
99.9 Mixed 652 902
50.7 SusWrite 993 1,348
222% 992 MB/s
Min Avg Max
10.3 4K Read 36.1 46.6
0.9 4K Write 55.8 147
1.83 4K Mixed 22.8 37.8
114% 38.2 MB/s
Min Avg Max
639 DQ Read 1,047 1,397
396 DQ Write 432 464
537 DQ Mixed 633 704
497% 704 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
131GB free (System drive)
Firmware: CXS8DA0Q
SusWrite @10s intervals: 1314 1209 1241 1167 1206 1165 MB/s
Read 1,313
Write 1169
Mixed 744
SusWrite 1217
250% 1,111 MB/s
4K Read 20.5
4K Write 30.7
4K Mixed 23.7
78% 25 MB/s
DQ Read 1,330
DQ Write 464
DQ Mixed 622
531% 805 MB/s
70GB free (System drive)
Firmware: CXS7LA0Q
SusWrite @10s intervals: 1137 1028 998 891 870 851 MB/s
Read 1,005
Write 832
Mixed 701
SusWrite 962
197% 875 MB/s
4K Read 11.5
4K Write 44.3
4K Mixed 15.4
61% 23.7 MB/s
DQ Read 1,424
DQ Write 431
DQ Mixed 690
571% 848 MB/s
65 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 21,545,781 SSDs tested.

Typical SM0256L 251GB Builds (Compare 343 builds) See popular component choices, score breakdowns and rankings.
Gaming 26%
Desktop 74%
Workstation 46%

System: Apple MacBookPro14,3


Popular SM0256L 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.

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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.
  • - 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) January 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.


1016 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.
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Intel Core i5-9400F $154Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $356Nvidia RTX 2060 $349Samsung 850 Pro 512GB $224
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WD Blue 1TB (2012) $42Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $653SanDisk Ultra Fit 32GB $16
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