Average Bench: 14.2% (356th of 639)

Based on 20 user benchmarks.  Device: VID 18a5 PID 0225 Model: SAMSUNG HM321HI
Poor: 8%Average: 14.2% Great: 20%

Terrible average bench

The SAMSUNG HM321HI 320GB averaged 85.8% 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 Write Speed 1.29MB/s
Avg. 4K Random Mixed IO Speed 0.41MB/s

Very good consistency

The range of scores (95th - 5th percentile) for the SAMSUNG HM321HI 320GB is just 11.7%. This is a relatively narrow range which indicates that the SAMSUNG HM321HI 320GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 0.39MB/s
Avg. Sequential Read Speed 29.2MB/s
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Average Bench

(Based on 20 samples)
Min Avg Max
1.2 Read 29.2 42.6
3.7 Write 24.1 43.3
3 Mixed 22.8 38.6
1.7 SusWrite 21.2 39.2
32.2% 24.3 MB/s
Min Avg Max
0.2 4K Read 0.39 0.53
0.8 4K Write 1.29 1.86
0.22 4K Mixed 0.41 0.8
59.2% 0.7 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
249GB free, PID 0225
Operating at USB 2.0 Speed
SusWrite @10s intervals: 37 40 39 40 40 40 MB/s
Read 38.3
Write 30.7
Mixed 32.5
SusWrite 39.2
48% 35.2 MB/s
4K Read 0.5
4K Write 1
4K Mixed 0.6
56% 0.7 MB/s
225GB free, PID 0225
Operating at USB 2.0 Speed
SusWrite @10s intervals: 21 20 18 19 17 19 MB/s
Read 34
Write 24.5
Mixed 27.5
SusWrite 18.8
34% 26.2 MB/s
4K Read 0.5
4K Write 1.3
4K Mixed 0.8
73% 0.87 MB/s
55GB free, PID 0225
Operating at USB 2.0 Speed
SusWrite @10s intervals: 25 25 25 25 25 25 MB/s
Read 26.3
Write 17.3
Mixed 24.3
SusWrite 25
31% 23.2 MB/s
4K Read 0.3
4K Write 1.2
4K Mixed 0.3
52% 0.6 MB/s
97GB free, PID 0225
Operating at USB 2.0 Speed
SusWrite @10s intervals: 13 41 41 42 40 38 MB/s
Read 1.2
Write 3.7
Mixed 3
SusWrite 35.8
17% 10.9 MB/s
4K Read 0.3
4K Write 0.8
4K Mixed 0.6
49% 0.57 MB/s
98GB free, PID 0225
Operating at USB 2.0 Speed
SusWrite @10s intervals: 2.3 1.6 1.8 1.4 1.4 1.6 MB/s
Read 29.2
Write 4.5
Mixed 6.3
SusWrite 1.7
10% 10.4 MB/s
4K Read 0.2
4K Write 0.9
4K Mixed 0.5
48% 0.53 MB/s
20 MORE »
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USB Flash Drive Rankings (Price vs Performance) January 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

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 i5-9600K $218Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $42
Intel Core i5-9400F $155Nvidia GTX 1650S (Super) $160Samsung 850 Evo 120GB $78
Intel Core i7-9700K $356Nvidia RTX 2060 $349Samsung 850 Pro 512GB $249
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $653SanDisk Ultra Fit 32GB $16
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