TEST
YOUR USB

ADATA (ExtHD)

SV620 240GB

▲ 500 ▼

Release date ≈ Q3 2016.

Average Bench: 154% (1st of 639)

Based on 78 user benchmarks.  Device: VID 125f PID a65a Model: ADATA SV620
Poor: 35%Average: 154% Great: 259%

Outstanding average bench

The ADATA SV620 240GB averaged 54.0% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the ADATA SV620 240GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 34.9MB/s
Avg. 4K Random Write Speed 24.9MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the ADATA SV620 240GB is 224%. This is a particularly wide range which indicates that the ADATA SV620 240GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 75.1MB/s
Avg. Sequential Read Speed 273MB/s
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Average Bench

(Based on 78 samples)
Rank 1154%
Min Avg Max
31.1 Read 273 386
24.1 Write 264 389
28.5 Mixed 256 379
23.5 SusWrite 75.1 106
284% 217 MB/s
Min Avg Max
6.65 4K Read 18.3 26
6.7 4K Write 24.9 58
4.86 4K Mixed 16.5 24.3
1,476% 19.9 MB/s
Min Avg Max
15.4 DQ Read 22.5 30.3
17.3 DQ Write 34.9 74
10.4 DQ Mixed 20.7 31.1
1,974% 26 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
29GB free, PID a65a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 260 62 55 54 54 54 MB/s
158% Outstanding
Read 373
Write 366
Mixed 348
SusWrite 89.6
384% 294 MB/s
4K Read 22.3
4K Write 25.8
4K Mixed 23.2
1,749% 23.8 MB/s
DQ Read 23.8
DQ Write 38.2
DQ Mixed 28.4
2,354% 30.1 MB/s
78 MORE »
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USB Flash Drive Rankings (Price vs Performance) April 2024 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.

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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
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 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $279Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $134Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $184Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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