Average Bench: 70.2% (644th of 1057)

Based on 765 user benchmarks.  Model: KINGSTON RBU-SC400S37128G

Good average bench

The Kingston RBU-SC400S37128G 128GB averaged 29.7% 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 114MB/s
Avg. 4K Random Write Speed 86.7MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Kingston RBU-SC400S37128G 128GB is 23.5%. This is a relatively narrow range which indicates that the Kingston RBU-SC400S37128G 128GB performs reasonably consistently under varying real world conditions.


Avg. Sustained Write Speed 121MB/s
Avg. Sequential Write Speed 155MB/s

Average Bench

(Based on 765 samples)
Min Avg Max
298 Read 361 430
134 Write 155 169
163 Mixed 198 220
84.8 SusWrite 121 142
46.2% 209 MB/s
Min Avg Max
20.7 4K Read 29.3 36.1
46 4K Write 86.7 109
23.9 4K Mixed 34.1 42.1
134% 50 MB/s
Min Avg Max
131 DQ Read 182 213
140 DQ Write 156 166
85.2 DQ Mixed 114 135
100% 151 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
25GB free (System drive)
Firmware: 505ABBF0
SusWrite @10s intervals: 124 112 110 109 107 98 MB/s
Read 379
Write 152
Mixed 194
SusWrite 110
46% 209 MB/s
4K Read 31.2
4K Write 91.7
4K Mixed 35.7
142% 52.9 MB/s
DQ Read 202
DQ Write 162
DQ Mixed 95.3
95% 153 MB/s
117GB free
Firmware: 505ABBF0
SusWrite @10s intervals: 135 133 142 142 139 134 MB/s
Read 442
Write 166
Mixed 206
SusWrite 138
52% 238 MB/s
4K Read 22.5
4K Write 49.4
4K Mixed 30.1
99% 34 MB/s
DQ Read 208
DQ Write 164
DQ Mixed 135
115% 169 MB/s
765 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 44,076,451 SSDs tested.

Typical RBU-SC400S37128G 128GB Builds (Compare 343 builds) See popular component choices, score breakdowns and rankings.
Gaming 32%
Sail boat
Desktop 82%
Aircraft carrier
Workstation 27%

System: Asus G30AB

EDIT WITH CUSTOM PC BUILDER Value: 54% - Above average Total price: $579

Popular RBU-SC400S37128G 128GB 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) June 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.


1057 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 i5-11400F $220Nvidia RTX 3070 $500Crucial MX500 250GB $40
Intel Core i5-11600K $259Nvidia RTX 3060-Ti $400Samsung 850 Evo 120GB $78
Intel Core i7-11700K $380Nvidia RTX 3080 $700Samsung 860 Evo 250GB $52
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $95SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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