Average Bench: 68.7% (609th of 1011)

Based on 2,413 user benchmarks.  Model: SK hynix SC308 SATA 256GB

Above average average bench

The SK hynix SC308 SATA 256GB averaged 31.3% 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 164MB/s
Avg. 4K-64Thread Read Speed 320MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the SK hynix SC308 SATA 256GB is 32.7%. This is a relatively narrow range which indicates that the SK hynix SC308 SATA 256GB performs reasonably consistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 198MB/s
Avg. Sustained Write Speed 219MB/s

Average Bench

(Based on 2,413 samples)
Min Avg Max
310 Read 393 462
193 Write 239 259
168 Mixed 198 219
142 SusWrite 219 251
58.3% 262 MB/s
Min Avg Max
8.73 4K Read 21.8 32.4
22.7 4K Write 62 98.5
11.1 4K Mixed 20.1 27.8
91.7% 34.7 MB/s
Min Avg Max
45.5 DQ Read 320 381
85.8 DQ Write 228 260
27.7 DQ Mixed 164 190
152% 237 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
180GB free (System drive)
Firmware: 30000P10
SusWrite @10s intervals: 213 206 224 210 228 212 MB/s
Read 448
Write 227
Mixed 205
SusWrite 216
61% 274 MB/s
4K Read 29.8
4K Write 80.2
4K Mixed 20
113% 43.3 MB/s
DQ Read 368
DQ Write 215
DQ Mixed 169
159% 251 MB/s
168GB free (System drive)
Firmware: 30001P10
SusWrite @10s intervals: 246 249 252 255 254 256 MB/s
Read 345
Write 239
Mixed 196
SusWrite 252
58% 258 MB/s
4K Read 25.3
4K Write 80.8
4K Mixed 25.1
113% 43.7 MB/s
DQ Read 335
DQ Write 254
DQ Mixed 191
171% 260 MB/s
2,413 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 19,133,049 SSDs tested.

Typical hynix SC308 SATA 256GB Builds (Compare 18,123 builds) See popular component choices, score breakdowns and rankings.
Gaming 15%
Tree trunk
Desktop 53%
Workstation 33%
Sail boat

System: Dell Inspiron 15 7000 Gaming - $649


Popular hynix SC308 SATA 256GB 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) 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
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer Feedback