Average Bench: 63.6% (517th of 929)

Based on 430 user benchmarks.  Model: KINGSTON RBU-SC400S37128G

Above average average bench

The Kingston RBU-SC400S37128G 128GB averaged 36.4% 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 Random Write Speed 88.4MB/s
Avg. 4K Random Read Speed 24.6MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Kingston RBU-SC400S37128G 128GB is 22.6%. This is a relatively narrow range which indicates that the Kingston RBU-SC400S37128G 128GB performs reasonably consistently under varying real world conditions.


Avg. Sequential Write Speed 142MB/s
Avg. 4K-64Thread Mixed IO Speed 29.7MB/s

Average Bench

(Based on 430 samples)
Min Avg Max
415 Read 476 514
116 Write 142 158
145 Mixed 189 222
58.4% 269 MB/s
Min Avg Max
14.1 4K Read 24.6 33.7
48.5 4K Write 88.4 112
9.25 4K Mixed 15.1 20.7
103% 42.7 MB/s
Min Avg Max
23.4 DQ Read 134 206
77.6 DQ Write 136 157
9.03 DQ Mixed 29.7 45.1
51.3% 99.9 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
23GB free
Firmware: 505ABBF0 Max speed: SATA 3.0 600 MB/s
Read 498
Write 155
Mixed 216
63% 290 MB/s
4K Read 32.8
4K Write 97
4K Mixed 17.7
124% 49.2 MB/s
DQ Read 199
DQ Write 156
DQ Mixed 41.9
68% 132 MB/s
18GB free
Firmware: 505ABBF0 Max speed: SATA 3.0 600 MB/s
Read 478
Write 138
Mixed 183
58% 266 MB/s
4K Read 27.6
4K Write 89.4
4K Mixed 15.3
109% 44.1 MB/s
DQ Read 188
DQ Write 154
DQ Mixed 32.5
62% 125 MB/s
2GB free
Firmware: 505ABBF0 Max speed: SATA 3.0 600 MB/s
Read 509
Write 86.5
Mixed 124
52% 240 MB/s
4K Read 22
4K Write 92.4
4K Mixed 12.8
98% 42.4 MB/s
DQ Read 203
DQ Write 135
DQ Mixed 29.5
60% 122 MB/s
1GB free
Firmware: 505ABBF0 Max speed: SATA 3.0 600 MB/s
Read 372
Write 123
Mixed 151
47% 216 MB/s
4K Read 13.4
4K Write 74.5
4K Mixed 17.3
82% 35.1 MB/s
DQ Read 112
DQ Write 113
DQ Mixed 37.3
49% 87.5 MB/s
430 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 7,152,990 SSDs tested.

Typical RBU-SC400S37128G 128GB Builds (Compare 412 builds) See popular component choices, score breakdowns and rankings.
Gaming 48%
Desktop 66%
Battle cruiser
Workstation 49%

System: Asus G30AB

EDIT WITH CUSTOM PC BUILDER Value: 63% - Good Total price: $749

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.

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How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
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  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
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Solid State Drive Rankings (Price vs Performance) June 2018 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 - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.


929 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.
AMD Ryzen 5 1600 $175Nvidia GTX 1070 $447Samsung 850 Evo 250GB $104
Intel Core i7-8700K $320Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $110
Intel Core i5-8600K $239AMD RX 480 $280Samsung 850 Pro 256GB $116
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $177SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $911SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $58HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Ultra Fit 32GB $12
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