Average Bench: 67.1% (639th of 1011)

Based on 699 user benchmarks.  Model: SanDisk SD8SB8U-128G-1006

Above average average bench

The Sandisk SD8SB8U-128G-1006 128GB averaged 32.9% 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 170MB/s
Avg. 4K Random Mixed IO Speed 31.6MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Sandisk SD8SB8U-128G-1006 128GB is 41%. This is a relatively wide range which indicates that the Sandisk SD8SB8U-128G-1006 128GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 81MB/s
Avg. Sequential Mixed IO Speed 204MB/s

Average Bench

(Based on 699 samples)
Min Avg Max
319 Read 419 482
103 Write 213 316
105 Mixed 204 303
44 SusWrite 81 102
50.6% 229 MB/s
Min Avg Max
11.8 4K Read 26.4 37.7
29.6 4K Write 59.7 106
16.9 4K Mixed 31.6 46
112% 39.2 MB/s
Min Avg Max
31.1 DQ Read 293 351
91.6 DQ Write 189 244
38 DQ Mixed 170 216
146% 217 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
62GB free (System drive)
Firmware: X4120006
SusWrite @10s intervals: 107 98 90 89 95 98 MB/s
Read 440
Write 281
Mixed 227
SusWrite 96.1
58% 261 MB/s
4K Read 30
4K Write 46.5
4K Mixed 33
112% 36.5 MB/s
DQ Read 182
DQ Write 204
DQ Mixed 130
116% 172 MB/s
72GB free (System drive)
Firmware: X4120006
SusWrite @10s intervals: 104 87 90 85 90 88 MB/s
Read 435
Write 176
Mixed 158
SusWrite 90.8
47% 215 MB/s
4K Read 22.7
4K Write 39.9
4K Mixed 28.6
92% 30.4 MB/s
DQ Read 352
DQ Write 183
DQ Mixed 190
162% 242 MB/s
699 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 19,368,266 SSDs tested.

Typical SD8SB8U-128G-1006 128GB Builds (Compare 829 builds) See popular component choices, score breakdowns and rankings.
Gaming 50%
Desktop 56%
Workstation 31%
Sail boat

System: HP Pavilion Power Desktop 580-0xx

EDIT WITH CUSTOM PC BUILDER Value: 69% - Good Total price: $372

Popular SD8SB8U-128G-1006 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) 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 $140Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $45
Intel Core i5-9600K $195AMD RX 590 $185Samsung 850 Evo 120GB $150
Intel Core i7-9700K $340Nvidia RTX 2060 $325Samsung 860 Evo 250GB $51
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $609SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85Corsair Vengeance LPX DDR4 3200 C16 2x8GB $68SanDisk Extreme 16GB $24
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