Average Bench: 25.3% (145th of 639)

Based on 3,880 user benchmarks.  Device: VID 0781 PID 5583 Models: SanDisk Ultra, SanDisk Ultra Fit

The 32GB Sandisk Ultra Fit has both a tiny form factor and a respectable performance profile. With peak sequential read/write speeds of 136/55 MBps and peak 4K read/writes of 6.6/2.0 MBps the 32GB Ultra Fit sits amongst the top 25% of 32GB flash drives. In terms of value for money the Ultra fit fares even better and is bested only by the Sandisk Extreme. Comparing the 32GB Extreme and Ultra Fit shows that the Extreme has over double the effective speed yet the extreme is only 32% more expensive than the Ultra Fit. To conclude, the 32GB Ultra Fit has good peak performance (sustained performance is far less impressive) but its key strengths are its tiny form factor and reasonable price tag. [Oct '14 USBFlashPro]

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Poor: 12%Average: 25.3% Great: 38%

Very poor average bench

The SanDisk Ultra Fit USB 3.0 32GB averaged 74.7% 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 2.26MB/s
Avg. 4K Random Write Speed 2.03MB/s

Good consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra Fit USB 3.0 32GB is 26.8%. This is a relatively narrow range which indicates that the SanDisk Ultra Fit USB 3.0 32GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 25.3MB/s
Avg. 4K Random Read Speed 4.9MB/s
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Average Bench

(Based on 3,880 samples)
Min Avg Max
26.3 Read 85.4 153
12.2 Write 38.4 95.4
12.3 Mixed 42.4 105
12.3 SusWrite 25.3 37.5
56.8% 47.9 MB/s
Min Avg Max
3 4K Read 4.9 6.8
0.6 4K Write 2.03 3.6
0.9 4K Mixed 2.26 4.1
164% 3.06 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
28GB free, PID 5583
Operating at USB 3.0 Speed
SusWrite @10s intervals: 37 38 42 38 42 38 MB/s
Read 144
Write 55.4
Mixed 28.7
SusWrite 39.4
73% 66.8 MB/s
4K Read 5.2
4K Write 1.7
4K Mixed 2.7
169% 3.2 MB/s
21GB free, PID 5583
Operating at USB 3.0 Speed
SusWrite @10s intervals: 19 37 37 19 19 19 MB/s
Read 131
Write 57.7
Mixed 76.3
SusWrite 24.9
86% 72.5 MB/s
4K Read 5.6
4K Write 2.7
4K Mixed 3.6
235% 3.97 MB/s
25GB free, PID 5583
Operating at USB 2.1 Speed
SusWrite @10s intervals: 19 18 16 16 16 16 MB/s
Read 31.5
Write 18
Mixed 20.7
SusWrite 16.9
28% 21.8 MB/s
4K Read 5.3
4K Write 1.8
4K Mixed 1.4
128% 2.83 MB/s
20GB free, PID 5583
Operating at USB 2.1 Speed
SusWrite @10s intervals: 12 17 15 15 15 15 MB/s
Read 29.7
Write 14.2
Mixed 17
SusWrite 14.9
24% 19 MB/s
4K Read 2.9
4K Write 1
4K Mixed 0.7
69% 1.53 MB/s
3,880 MORE »

 Prices

Approx. $19 @ launch in Aug '14
EbayUS $1217 mins
AmazonUS $167 months
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USB Flash Drive Rankings (Price vs Performance) October 2018 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]

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

Ultra-small and low profile drive...

Added 3 years ago.

Excellent (edit your comment) Add link

4 months ago.

Comment 

Yeah, so this thumb drive looks like it gets throttled after about half a second of writes (down to ~20MBPs), presumably so that it does not actually melt your computer (it gets quite hot). In short bursts, it is very fast, perfect for holding an OS, which is what I use it for, hence the high rating. Not the drive for moving lots of data around.—Jan '16


Good

2 months ago.

I like it, but it gets hot after a few minutes (even if that doesn't matter)


Excellent

9 months ago.

I bought this pen drive after watching it's write speed of 80+ MBps on this website and it turns out that it doesn't provide write speed of more than 20 MBps even on USB 3.0. This website is not very trust-able.


Liked

16 months ago.


Terrible

14 months ago.

I have two of these and both frequently disconnect in the middle of use (every 10 seconds)


Terrible

10 months ago.

Heats up and write speed drops dramatically


Excellent

3 years ago.


Average

2 years ago.

Lightning fast Read. But write speed seems to throttle after a few seconds and goes down to around 20 MB/s


Above average

2 years ago.

I just have no idea why they build a such fast pd that is capable of 90 mbps write speed in a such small form factor that it gets throtled after 5 seconds and drops down to 20 mbps. Why didnt they build a nice little heatsink on it, or a metal case that can dissapate the heat? It's a pitty. However the 140 mbps read speed is still freaking amazing :)


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

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The Best.
CPUGPUSSD
Intel Core i7-8700K $370Nvidia GTX 1070 $319Samsung 850 Evo 250GB $78
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $120
Intel Core i7-7700K $355AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 64GB $42
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $55Corsair Vengeance LPX DDR4 3200 C16 2x8GB $145SanDisk Ultra Fit 32GB $12
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