Average Bench: 58.5% (800th of 1058)

Based on 288 user benchmarks.  Model: SanDisk SD8SB8U128G1002

Average average bench

The Sandisk SD8SB8U128G1002 128GB averaged 41.4% 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 141MB/s
Avg. 4K Random Read Speed 22.7MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Sandisk SD8SB8U128G1002 128GB is 37.6%. This is a relatively wide range which indicates that the Sandisk SD8SB8U128G1002 128GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 86.3MB/s
Avg. Sequential Mixed IO Speed 209MB/s

Average Bench

(Based on 288 samples)
Min Avg Max
320 Read 402 478
96.3 Write 217 334
128 Mixed 209 299
46.6 SusWrite 86.3 106
50.5% 228 MB/s
Min Avg Max
11.1 4K Read 22.7 33.8
21.5 4K Write 47.2 86.4
8.8 4K Mixed 23.9 39.8
90% 31.3 MB/s
Min Avg Max
24.5 DQ Read 224 356
38.8 DQ Write 168 255
8.45 DQ Mixed 141 226
120% 178 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
26GB free (System drive)
Firmware: X4131002
SusWrite @10s intervals: 102 85 82 70 59 72 MB/s
Read 459
Write 194
Mixed 188
SusWrite 78.1
50% 230 MB/s
4K Read 27.7
4K Write 78
4K Mixed 31.6
124% 45.8 MB/s
DQ Read 329
DQ Write 206
DQ Mixed 198
166% 244 MB/s
17GB free (System drive)
Firmware: X4131002
SusWrite @10s intervals: 113 97 87 93 87 89 MB/s
Read 404
Write 116
Mixed 84.6
SusWrite 94.3
38% 175 MB/s
4K Read 16.9
4K Write 40.6
4K Mixed 25.1
79% 27.5 MB/s
DQ Read 347
DQ Write 216
DQ Mixed 200
171% 254 MB/s
288 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,045,292 SSDs tested.

Typical SD8SB8U128G1002 128GB Builds (Compare 616 builds) See popular component choices, score breakdowns and rankings.
Gaming 7%
Tree trunk
Desktop 64%
Workstation 7%
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 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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - 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.
Solid State Drive Rankings (Price vs Performance) September 2021 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.


1058 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 i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 850 Evo 120GB $183
Intel Core i7-11700K $346Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $52
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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