Average Bench: 50.3% (22nd of 639)

Based on 444 user benchmarks.  Device: VID 05dc PID a212 Model: Lexar USB Flash Drive
Poor: 11%Average: 50.3% Great: 93%

Average average bench

The Lexar JumpDrive P20 USB 3.0 64GB averaged 49.6% 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. Sustained Write Speed 149MB/s
Avg. Sequential Write Speed 103MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Lexar JumpDrive P20 USB 3.0 64GB is 82.1%. This is a particularly wide range which indicates that the Lexar JumpDrive P20 USB 3.0 64GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 4.67MB/s
Avg. 4K Random Write Speed 0.72MB/s
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Average Bench

(Based on 444 samples)
Min Avg Max
28.6 Read 155 284
18.3 Write 103 249
13.8 Mixed 75.3 163
18.4 SusWrite 149 268
157% 121 MB/s
Min Avg Max
1.98 4K Read 4.67 8.21
0.13 4K Write 0.72 1
0.21 4K Mixed 0.84 1.6
70.5% 2.08 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
35GB free, PID a212
Operating at USB 3.0 Speed
SusWrite @10s intervals: 222 265 268 270 269 260 MB/s
Read 200
Write 260
Mixed 148
SusWrite 259
301% 217 MB/s
4K Read 4.2
4K Write 0.9
4K Mixed 1.5
97% 2.2 MB/s
56GB free, PID a212
Operating at USB 2.1 Speed
SusWrite @10s intervals: 37 39 39 39 38 39 MB/s
Read 36.8
Write 37.5
Mixed 32
SusWrite 38.4
50% 36.2 MB/s
4K Read 1.8
4K Write 0.6
4K Mixed 0.9
58% 1.1 MB/s
444 MORE »

 Prices

Approx. $33 @ launch in Feb '15
AmazonUS LJDP20-64GCRBNA $4021 months
BHPhotoUS LJDP20-64GCRBNA $403 years
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USB Flash Drive Rankings (Price vs Performance) September 2020 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

Sleek, High-Performance Portable Storage...

Added 4 years ago.

Poor

3 years ago.

Unfortunately I must say that one of the slowest USB keys I have ever used whatever the benchmarks say.


Poor

4 months ago.

Below declared speeds. Few much cheaper ones are faster!


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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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