TEST
YOUR USB

SanDisk SDCZ88-128G (Flash)

Extreme Pro USB 3.0 128GB

Average Bench: 80.9% (6th of 639)

Based on 1,450 user benchmarks.  Device: VID 0781 PID 5588 Model: SanDisk ExtremePro
Poor: 22%Average: 80.9% Great: 123%

Very good average bench

The SanDisk Extreme Pro USB 3.0 128GB averaged just 19.0% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the SanDisk Extreme Pro USB 3.0 128GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 12MB/s
Avg. 4K-64Thread Mixed IO Speed 9.38MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the SanDisk Extreme Pro USB 3.0 128GB is 101%. This is a particularly wide range which indicates that the SanDisk Extreme Pro USB 3.0 128GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 46.4MB/s
Avg. 4K Random Read Speed 8.58MB/s
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Average Bench

(Based on 1,450 samples)
Rank 680.9%
Min Avg Max
25 Read 160 251
7.84 Write 99.1 216
2 Mixed 46.4 126
11.3 SusWrite 127 229
136% 108 MB/s
Min Avg Max
2.85 4K Read 8.58 12.4
1.1 4K Write 9.07 11.7
3.4 4K Mixed 6.98 8.8
578% 8.21 MB/s
Min Avg Max
8.8 DQ Read 10.9 12.8
10.5 DQ Write 12 12.7
7.5 DQ Mixed 9.38 10.6
767% 10.8 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
98GB free, PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 221 216 210 209 213 220 MB/s
118% Outstanding
Read 234
Write 168
Mixed 78.2
SusWrite 215
224% 174 MB/s
4K Read 11
4K Write 11.2
4K Mixed 8.2
701% 10.1 MB/s
DQ Read 11.4
DQ Write 12.3
DQ Mixed 9.9
797% 11.2 MB/s
72GB free, PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 221 216 214 211 218 215 MB/s
115% Outstanding
Read 222
Write 196
Mixed 70.8
SusWrite 216
231% 176 MB/s
4K Read 11.1
4K Write 10.7
4K Mixed 7.7
667% 9.83 MB/s
DQ Read 11.4
DQ Write 12.1
DQ Mixed 9.8
787% 11.1 MB/s
116GB free, PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 148 123 174 184 196 166 MB/s
102% Outstanding
Read 220
Write 193
Mixed 136
SusWrite 165
235% 179 MB/s
4K Read 7.8
4K Write 10.4
4K Mixed 6.2
594% 8.13 MB/s
DQ Read 11
DQ Write 12
DQ Mixed 10
789% 11 MB/s
98GB free, PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 117 202 177 185 209 210 MB/s
98% Outstanding
Read 232
Write 189
Mixed 64.9
SusWrite 183
214% 168 MB/s
4K Read 9.5
4K Write 7.2
4K Mixed 7.9
549% 8.2 MB/s
103GB free, PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 79 89 85 86 86 77 MB/s
89.9% Excellent
Read 226
Write 167
Mixed 47
SusWrite 83.5
157% 131 MB/s
4K Read 11.3
4K Write 11.8
4K Mixed 8.6
736% 10.6 MB/s
DQ Read 11.8
DQ Write 12.6
DQ Mixed 10.2
819% 11.5 MB/s
114GB free, PID 5588
Operating at USB 2.1 Speed
SusWrite @10s intervals: 42 39 45 30 37 42 MB/s
52.2% Above average
Read 45.9
Write 44.7
Mixed 2.5
SusWrite 39.1
42% 33.1 MB/s
4K Read 8.3
4K Write 11.4
4K Mixed 7.6
677% 9.1 MB/s
DQ Read 9
DQ Write 12.6
DQ Mixed 8.8
761% 10.1 MB/s
18GB free, PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 83 211 129 149 138 153 MB/s
49.2% Average
Read 103
Write 11.2
Mixed 0.2
SusWrite 144
80% 64.7 MB/s
4K Read 9.5
4K Write 0.2
4K Mixed 2.2
117% 3.97 MB/s
1,450 MORE »

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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.

 Comments

Added n/a ago.
USA-User
Avatar level
8,766

Excellent (edit your comment) Add link

16 months ago.

FRA-User
Avatar level
4,171

Excellent

12 months ago.

got it for 5 years and still totally satisfied great product

IND-User
Avatar level
4,140

Excellent

2 years ago.

isse achha toh 500 GB ki SSD na le lu BC.

hellcinder
Avatar level
14

Excellent

19 months ago.

Best speeds for xfering data on a thumb drive.

TheGrumpybear
Avatar level
14

Excellent

14 months ago.

does what it says on the box :D

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Speed Comparisons

vs SanDisk Extreme 64GB
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639 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different USBs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

Storage Devices FAQ
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What is the Flash Drive value for money rating?
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HDDRAMUSB
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Seagate Barracuda 2TB (2016) $71G.SKILL Trident Z DDR4 3200 C14 4x16GB $470SanDisk Ultra Fit 32GB $16
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