Average Bench: 65.6% (660th of 1011)

Based on 8,329 user benchmarks.  Model: SK hynix SC311 SATA 128GB

Above average average bench

The SK hynix SC311 SATA 128GB averaged 34.4% 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 130MB/s
Avg. 4K Random Mixed IO Speed 30MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the SK hynix SC311 SATA 128GB is 35.2%. This is a relatively wide range which indicates that the SK hynix SC311 SATA 128GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 112MB/s
Avg. Sequential Write Speed 260MB/s

Average Bench

(Based on 8,329 samples)
Min Avg Max
360 Read 445 498
161 Write 260 301
165 Mixed 299 334
74.7 SusWrite 112 133
62% 279 MB/s
Min Avg Max
10.8 4K Read 23.9 31.8
28.7 4K Write 63.1 92.9
14.2 4K Mixed 30 42.4
108% 39 MB/s
Min Avg Max
130 DQ Read 188 205
83.4 DQ Write 153 258
45.9 DQ Mixed 130 175
108% 157 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
17GB free (System drive)
Firmware: 70000P10
SusWrite @10s intervals: 133 126 124 124 131 126 MB/s
Read 481
Write 264
Mixed 322
SusWrite 127
66% 299 MB/s
4K Read 25.5
4K Write 60.7
4K Mixed 33.2
113% 39.8 MB/s
DQ Read 204
DQ Write 170
DQ Mixed 136
116% 170 MB/s
53GB free (System drive)
Firmware: 70000P10
SusWrite @10s intervals: 117 142 113 116 112 112 MB/s
Read 477
Write 285
Mixed 319
SusWrite 118
67% 300 MB/s
4K Read 26
4K Write 55.9
4K Mixed 32.8
111% 38.2 MB/s
DQ Read 208
DQ Write 161
DQ Mixed 137
115% 169 MB/s
69GB free (System drive)
Firmware: 70000P10
SusWrite @10s intervals: 124 138 124 125 132 148 MB/s
Read 432
Write 286
Mixed 302
SusWrite 132
64% 288 MB/s
4K Read 25.8
4K Write 64
4K Mixed 21.8
101% 37.2 MB/s
DQ Read 166
DQ Write 123
DQ Mixed 141
107% 144 MB/s
8,329 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 19,132,121 SSDs tested.

Typical hynix SC311 SATA 128GB Builds (Compare 9,340 builds) See popular component choices, score breakdowns and rankings.
Gaming 15%
Desktop 52%
Workstation 33%
Sail boat

System: Dell Inspiron 7577


Popular hynix SC311 SATA 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.
  • - 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.
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Solid State Drive Rankings (Price vs Performance) November 2019 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.


1011 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 i5-9400F $148Nvidia GTX 1660S (Super) $234Crucial MX500 250GB $45
Intel Core i5-9600K $210Nvidia GTX 1660 $210Samsung 850 Evo 120GB $150
Intel Core i7-9700K $340Nvidia GTX 1660-Ti $260Samsung 860 Evo 250GB $49
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $612SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $75Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Ultra Fit 32GB $14
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