Average Bench: 22.6% (189th of 639)

Based on 18,181 user benchmarks.  Device: VID 0781 PID 5581 Models: SanDisk SanDisk Ultra, SanDisk Ultra

Sandisk had phenomenal success with the Sandisk Extreme which I reviewed nearly two years ago. The Extreme is still one of the best flash drives available. I had high hopes for the Ultra despite its marginally more budget orientation. Unfortunately the 16GB Ultra turned out to be a disappointment. With sequential read/write speeds of just 75/9 Mbps the Ultra lies in the bottom 25% of 16GB USB 3.0 flash drives. Small file (4K) read/write speeds clocked in at 8.35/0.08 MBps which is also in the bottom 25%. On the bright side the Ultra USB 3.0 isn't overpriced so it does represents reasonable value for money but I would happily spend a little more and get the record breaking 16GB Sandisk Extreme [Feb '14 USBFlashPro]

Poor: 10%Average: 22.6% Great: 34%

Very poor average bench

The SanDisk Ultra USB 3.0 16GB averaged 77.4% 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.

Strengths

Avg. 4K Random Mixed IO Speed 2.65MB/s
Avg. 4K Random Write Speed 1.93MB/s

Good consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra USB 3.0 16GB is 24.6%. This is a relatively narrow range which indicates that the SanDisk Ultra USB 3.0 16GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 15.5MB/s
Avg. Sequential Write Speed 18.9MB/s
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Average Bench

(Based on 18,181 samples)
Min Avg Max
26.9 Read 82.8 146
4.7 Write 18.9 41.5
11.3 Mixed 28 57.4
6.7 SusWrite 15.5 28.6
38.8% 36.3 MB/s
Min Avg Max
2.8 4K Read 5.23 7
0.3 4K Write 1.93 2.8
0.4 4K Mixed 2.65 3.8
175% 3.27 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
9GB free, PID 5581
Operating at USB 3.0 Speed
SusWrite @10s intervals: 4 9.4 11 12 11 12 MB/s
Read 118
Write 11.5
Mixed 20.9
SusWrite 9.7
36% 39.9 MB/s
4K Read 5.8
4K Write 2.9
4K Mixed 3.8
249% 4.17 MB/s
6GB free, PID 5581
Operating at USB 3.0 Speed
SusWrite @10s intervals: 8.6 6.1 20 22 15 19 MB/s
Read 128
Write 7.5
Mixed 12
SusWrite 15
35% 40.6 MB/s
4K Read 5.7
4K Write 1.8
4K Mixed 2.3
161% 3.27 MB/s
14GB free, PID 5581
Operating at USB 3.0 Speed
SusWrite @10s intervals: 17 14 14 14 13 14 MB/s
Read 152
Write 42.7
Mixed 30.4
SusWrite 14.4
60% 60 MB/s
4K Read 6.6
4K Write 0.3
4K Mixed 1.6
89% 2.83 MB/s
5GB free, PID 5581
Operating at USB 3.0 Speed
SusWrite @10s intervals: 45 38 49 39 49 46 MB/s
Read 89.3
Write 48.5
Mixed 28.2
SusWrite 44.3
63% 52.6 MB/s
4K Read 4.8
4K Write 0.9
4K Mixed 1.3
93% 2.33 MB/s
14GB free, PID 5581
Operating at USB 2.1 Speed
SusWrite @10s intervals: 17 20 20 20 21 13 MB/s
Read 38.2
Write 19.4
Mixed 21
SusWrite 18.5
30% 24.3 MB/s
4K Read 5.5
4K Write 2
4K Mixed 2.8
184% 3.43 MB/s
18,181 MORE »

 Prices

MSRP ≈ $14 @ launch in Jan '13
AmazonUS $720 mins
BHPhotoUS $1014 months
Send price feedback
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  • - CPU tests include: integer, floating and string.
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USB Flash Drive Rankings (Price vs Performance) October 2021 USB Rankings.

We highlight the best USB flash drive in terms of balanced performance and value for money using current prices, sequential read, sequential write , 4k read and 4k write speed. The speeds are combined to form a single effective speed which measures performance for tasks such as copying photos, music and videos. Effective speed is adjusted by current price and capacity to yield value for money. Finally thousands of individual user ratings are used to validate our benchmark figures. [USBFlashPro]

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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

Move Files Quickly with Faster Transfer Speeds...

Added 7 years ago.

Poor

2 years ago.

I feel cheated. There's only 58.9 GB showing. Surely in laws relating to Sales Description you should get 64Gb or slightler over. Can you legally advertise something at more than it is?


Disliked

2 years ago.

Comment 

It reads 30+ and writs 20+ in usb2 I am very happy with the drive. It is real life experience—Sep '14


Good

2 years ago.

Fast flashdrive like no other else!


Poor

4 years ago.

Pretty average usb drive got it for 3 € so worth it.


Below average

4 years ago.

Extremely slow write, so so read .. There are far better options out there. I luckily only use it as an image backup for my Windows 10 install. It's too slow for anything else.


Very poor

7 years ago.


Your
opinion?
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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-11600K $260Nvidia RTX 3070 $500Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3060-Ti $400Samsung 860 Evo 250GB $52
Intel Core i7-11700K $350Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $68SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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