Average Bench: 69.3% (638th of 1037)

Based on 3,554 user benchmarks.  Model: KINGSTON SA400M8120G

Above average average bench

The Kingston SA400M8120G 120GB averaged 30.7% 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 153MB/s
Avg. 4K Random Read Speed 30.4MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Kingston SA400M8120G 120GB is 45.8%. This is a relatively wide range which indicates that the Kingston SA400M8120G 120GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 85.9MB/s
Avg. Sequential Mixed IO Speed 291MB/s

Average Bench

(Based on 3,554 samples)
Min Avg Max
285 Read 436 492
92.1 Write 297 389
100 Mixed 291 348
53.6 SusWrite 85.9 107
61.6% 277 MB/s
Min Avg Max
1.2 4K Read 30.4 40.2
22.2 4K Write 69.4 95.3
9.1 4K Mixed 29.8 38.7
121% 43.2 MB/s
Min Avg Max
91.9 DQ Read 218 252
42.6 DQ Write 227 320
30.2 DQ Mixed 153 196
134% 199 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
35GB free (System drive)
Firmware: SBFK61E1
SusWrite @10s intervals: 231 105 87 75 62 100 MB/s
Read 487
Write 374
Mixed 346
SusWrite 110
73% 329 MB/s
4K Read 35.6
4K Write 81.4
4K Mixed 34.2
141% 50.4 MB/s
DQ Read 242
DQ Write 280
DQ Mixed 188
162% 237 MB/s
27GB free (System drive)
Firmware: SBFK61E1
SusWrite @10s intervals: 139 55 70 38 44 50 MB/s
Read 461
Write 314
Mixed 331
SusWrite 66
65% 293 MB/s
4K Read 34.2
4K Write 13.8
4K Mixed 23.9
90% 24 MB/s
DQ Read 218
DQ Write 33.9
DQ Mixed 18.2
41% 90.1 MB/s
3,554 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 31,581,489 SSDs tested.

Typical SA400M8120G 120GB Builds (Compare 31,990 builds) See popular component choices, score breakdowns and rankings.
Gaming 50%
Desktop 82%
Aircraft carrier
Workstation 46%

Motherboard: Gigabyte B450M DS3H - $73

EDIT WITH CUSTOM PC BUILDER Value: 89% - Excellent Total price: $448

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.
  • - 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 $300Nvidia RTX 2070S (Super) $510Samsung 860 Evo 250GB $42
Seagate Barracuda 1TB (2016) $35Corsair Vengeance LPX DDR4 3200 C16 2x8GB $66SanDisk 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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