Average Bench: 69.5% (661st of 1058)

Based on 6,428 user benchmarks.  Model: KINGSTON SA400M8120G

Above average average bench

The Kingston SA400M8120G 120GB averaged 30.4% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.


Avg. 4K-64Thread Mixed IO Speed 147MB/s
Avg. 4K Random Read Speed 29.9MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Kingston SA400M8120G 120GB is 47.8%. This is a relatively wide range which indicates that the Kingston SA400M8120G 120GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 96.8MB/s
Avg. Sequential Write Speed 284MB/s

Average Bench

(Based on 6,428 samples)
Min Avg Max
292 Read 434 493
111 Write 284 390
90.2 Mixed 287 361
48.5 SusWrite 96.8 164
61.2% 275 MB/s
Min Avg Max
0.6 4K Read 29.9 40.5
20 4K Write 68.1 94.3
6.12 4K Mixed 30.5 40.2
120% 42.8 MB/s
Min Avg Max
82.8 DQ Read 216 262
36.7 DQ Write 221 322
22.3 DQ Mixed 147 197
130% 195 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
38GB free (System drive)
Firmware: 03150010
SusWrite @10s intervals: 114 96 106 50 37 52 MB/s
Read 387
Write 82.7
Mixed 241
SusWrite 75.9
43% 197 MB/s
4K Read 7.6
4K Write 63.5
4K Mixed 39.2
95% 36.8 MB/s
DQ Read 155
DQ Write 72
DQ Mixed 87
72% 105 MB/s
7GB free (System drive)
Firmware: 03150010
SusWrite @10s intervals: 32 63 29 28 29 29 MB/s
Read 315
Write 53.9
Mixed 277
SusWrite 35
38% 170 MB/s
4K Read 1.2
4K Write 3.8
4K Mixed 1.5
6% 2.17 MB/s
6,428 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 45,499,118 SSDs tested.

Typical SA400M8120G 120GB Builds (Compare 64,220 builds) See popular component choices, score breakdowns and rankings.
Gaming 47%
Desktop 81%
Aircraft carrier
Workstation 44%
Speed boat

Motherboard: Gigabyte B450M DS3H - $62

EDIT WITH CUSTOM PC BUILDER Value: 74% - Very good Total price: $535

Popular SA400M8120G 120GB compatible motherboards:

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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - 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.
Solid State Drive Rankings (Price vs Performance) August 2021 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.


1058 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 i5-11600K $270Nvidia RTX 3070 $500Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3060-Ti $400Samsung 860 Evo 250GB $52
Intel Core i7-11700K $394Nvidia RTX 3080 $700Samsung 850 Evo 120GB $183
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $80SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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