TEST
YOUR USB

SanDisk SDCZ88-128G (Flash)

Extreme Pro USB 3.0 128GB

Average Bench: 75.7% (6th of 639)

Based on 1,297 user benchmarks.  Device: VID 0781 PID 5588 Model: SanDisk ExtremePro
Poor: 16%Average: 75.7% Great: 122%

Good average bench

The SanDisk Extreme Pro USB 3.0 128GB averaged 24.3% 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 11.6MB/s
Avg. 4K-64Thread Mixed IO Speed 9.29MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the SanDisk Extreme Pro USB 3.0 128GB is 106%. 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 44.1MB/s
Avg. 4K Random Read Speed 8.16MB/s
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Average Bench

(Based on 1,297 samples)
Rank 675.7%
Min Avg Max
14.6 Read 151 249
7.85 Write 94.7 215
2 Mixed 44.1 116
10.1 SusWrite 118 229
128% 102 MB/s
Min Avg Max
2.45 4K Read 8.16 12.4
0.4 4K Write 8.48 11.7
2.3 4K Mixed 6.59 8.8
543% 7.74 MB/s
Min Avg Max
8.7 DQ Read 10.8 12.8
9.03 DQ Write 11.6 12.7
7.6 DQ Mixed 9.29 10.5
752% 10.6 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
119GB free, PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 224 223 216 214 213 211 MB/s
122% Outstanding
Read 251
Write 214
Mixed 66.6
SusWrite 217
242% 187 MB/s
4K Read 12
4K Write 11.5
4K Mixed 8.8
735% 10.8 MB/s
DQ Read 12.3
DQ Write 12.8
DQ Mixed 10.3
831% 11.8 MB/s
115GB free, PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 157 150 115 185 216 206 MB/s
107% Outstanding
Read 234
Write 206
Mixed 71.7
SusWrite 172
219% 171 MB/s
4K Read 9.8
4K Write 10.9
4K Mixed 7.3
655% 9.33 MB/s
DQ Read 11
DQ Write 11.5
DQ Mixed 9.8
765% 10.8 MB/s
118GB free, PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 188 183 217 203 220 212 MB/s
105% Outstanding
Read 166
Write 73.7
Mixed 28.6
SusWrite 204
150% 118 MB/s
4K Read 9.4
4K Write 11
4K Mixed 7.7
671% 9.37 MB/s
DQ Read 11.4
DQ Write 12.7
DQ Mixed 9.7
804% 11.3 MB/s
78GB free (System drive), PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 12 27 5.4 83 97 MB/s
54.3% Above average
Read 58.4
Write 50.4
Mixed 21.2
SusWrite 43.4
56% 43.3 MB/s
4K Read 8.2
4K Write 11.2
4K Mixed 6.5
632% 8.63 MB/s
DQ Read 9.3
DQ Write 10.9
DQ Mixed 8.8
704% 9.67 MB/s
26GB free, PID 5588
Operating at USB 2.1 Speed
SusWrite @10s intervals: 38 41 42 42 42 41 MB/s
47% Average
Read 39.5
Write 41
Mixed 30.2
SusWrite 41.1
52% 37.9 MB/s
4K Read 8
4K Write 9.9
4K Mixed 6.9
601% 8.27 MB/s
DQ Read 9.1
DQ Write 12.2
DQ Mixed 8.7
745% 10 MB/s
1,297 MORE »

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  • 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
7,164

Liked (edit your comment) Add link

10 months ago.

IND-User
Avatar level
3,416

Excellent

14 months ago.

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

hellcinder
Avatar level
14

Excellent

17 days ago.

Best speeds for xfering data on a thumb drive.

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opinion?
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Ready to retire
Age: 6 years

Speed Comparisons

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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
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
What is sequential read speed?
What is incompressible data?
USB Flash Drives
How do you install an OS from a USB flash drive?
What is the Flash Drive value for money rating?
What is effective USB Flash Drive speed?
Why should USB 2.0 Flash Drives be avoided?
File system considerations?
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 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-9600K $190Nvidia RTX 3070 $500Crucial MX500 250GB $34
Intel Core i5-9400F $150Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $78
Intel Core i5-10600K $260Nvidia GTX 1650S (Super) $190Samsung 860 Evo 250GB $50
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $64SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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