Average Bench: 75.6% (524th of 1037)

Based on 1,214 user benchmarks.  Model: SanDisk SD7SB3Q128G1002

Good average bench

The SanDisk X300s Non-Secure 128GB averaged 24.4% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the SanDisk X300s Non-Secure 128GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 132MB/s
Avg. 4K Random Read Speed 26.4MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the SanDisk X300s Non-Secure 128GB is 35.2%. This is a relatively wide range which indicates that the SanDisk X300s Non-Secure 128GB performs inconsistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 211MB/s
Avg. Sustained Write Speed 210MB/s

Average Bench

(Based on 1,214 samples)
Min Avg Max
358 Read 435 477
169 Write 265 329
147 Mixed 211 250
95.4 SusWrite 210 318
62.3% 280 MB/s
Min Avg Max
18.1 4K Read 26.4 32.8
37.6 4K Write 61.1 94.5
19.4 4K Mixed 29.1 37.5
110% 38.9 MB/s
Min Avg Max
168 DQ Read 296 320
133 DQ Write 234 297
99 DQ Mixed 132 150
135% 221 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
58GB free (System drive)
Firmware: X2150000
SusWrite @10s intervals: 299 259 242 235 236 238 MB/s
Read 391
Write 275
Mixed 206
SusWrite 252
63% 281 MB/s
4K Read 20.6
4K Write 29.5
4K Mixed 16.4
68% 22.2 MB/s
DQ Read 308
DQ Write 230
DQ Mixed 147
143% 228 MB/s
64GB free (System drive)
Firmware: X2150000
SusWrite @10s intervals: 193 192 163 171 175 173 MB/s
Read 377
Write 260
Mixed 192
SusWrite 178
56% 252 MB/s
4K Read 22.2
4K Write 55.9
4K Mixed 21.4
91% 33.2 MB/s
DQ Read 246
DQ Write 172
DQ Mixed 117
112% 178 MB/s
1,214 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 31,611,973 SSDs tested.

Typical X300s Non-Secure 128GB Builds (Compare 514 builds) See popular component choices, score breakdowns and rankings.
Gaming 26%
Desktop 74%
Workstation 21%

System: Asus G751JT


Popular X300s Non-Secure 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) 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 $289Nvidia RTX 2070S (Super) $505Samsung 860 Evo 250GB $43
Seagate Barracuda 1TB (2016) $35Corsair Vengeance LPX DDR4 3200 C16 2x8GB $69SanDisk 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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