Average Bench: 59.3% (807th of 1072)

Based on 325 user benchmarks.  Model: SanDisk SD8SB8U128G1002

Average average bench

The Sandisk SD8SB8U128G1002 128GB averaged 40.6% 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 146MB/s
Avg. 4K Random Read Speed 22.9MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Sandisk SD8SB8U128G1002 128GB is 40.9%. This is a relatively wide range which indicates that the Sandisk SD8SB8U128G1002 128GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 86.5MB/s
Avg. Sequential Mixed IO Speed 209MB/s

Average Bench

(Based on 325 samples)
Min Avg Max
318 Read 403 477
94.9 Write 218 335
127 Mixed 209 299
48.3 SusWrite 86.5 106
50.7% 229 MB/s
Min Avg Max
10.6 4K Read 22.9 34.1
22.6 4K Write 48.4 91.8
8.96 4K Mixed 24.6 41.2
91.9% 32 MB/s
Min Avg Max
24.6 DQ Read 233 357
39.8 DQ Write 172 258
8.85 DQ Mixed 146 226
124% 183 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
115GB free
Firmware: X4131002
SusWrite @10s intervals: 121 99 94 93 88 93 MB/s
Read 482
Write 318
Mixed 246
SusWrite 97.9
63% 286 MB/s
4K Read 31.1
4K Write 82.9
4K Mixed 35.3
136% 49.8 MB/s
DQ Read 362
DQ Write 255
DQ Mixed 230
193% 282 MB/s
50GB free (System drive)
Firmware: X4131002
SusWrite @10s intervals: 93 93 84 85 83 91 MB/s
Read 480
Write 198
Mixed 236
SusWrite 88.3
55% 251 MB/s
4K Read 28.2
4K Write 50.3
4K Mixed 31.9
110% 36.8 MB/s
DQ Read 349
DQ Write 195
DQ Mixed 178
158% 241 MB/s
49GB free
Firmware: X4131002
SusWrite @10s intervals: 171 124 87 87 85 85 MB/s
Read 433
Write 324
Mixed 315
SusWrite 107
66% 295 MB/s
4K Read 23.1
4K Write 42.3
4K Mixed 27.7
93% 31 MB/s
DQ Read 342
DQ Write 268
DQ Mixed 227
191% 279 MB/s
325 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,598,072 SSDs tested

Typical SD8SB8U128G1002 128GB Builds (Compare 363 builds) See popular component choices, score breakdowns and rankings
Gaming 7%
Tree trunk
Desktop 58%
Workstation 6%
Tree trunk

System: Asus X550VXK


Popular SD8SB8U128G1002 128GB systems:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute

Welcome to our 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 value for money upgrades.

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Solid State Drive Rankings (Price vs Performance) April 2024 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.


1072 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 i5-13600K $273Nvidia RTX 4060 $295Crucial MX500 250GB $35
Intel Core i5-12600K $183Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12400F $134Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
Seagate Barracuda 1TB (2016) $34Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $31Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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