TEST
YOUR USB

Samsung (ExtHD)

SSD 840 EVO 1TB

▲ 500 ▼

Release date ≈ Q4 2017.

Average Bench: 187% (1st of 639)

Based on 4 user benchmarks.  Device: VID 152d PID 0567 Model: Samsung SSD 840 EVO 1TB
Poor: 131%Average: 187% Great: 231%

Outstanding average bench

The Samsung SSD 840 EVO 1TB averaged 87.1% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung SSD 840 EVO 1TB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 35.5MB/s
Avg. 4K Random Write Speed 25.9MB/s

Unknown consistency

There are too few samples to reasonably determine how consistently this USB perfroms. This result should be interpreted with caution.

Weaknesses

Avg. Sequential Read Speed 325MB/s
Avg. 4K Random Read Speed 23.5MB/s
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Average Bench

(Based on 4 samples)
Rank 1187%
Min Avg Max
132 Read 325 394
126 Write 278 405
126 Mixed 273 346
127 SusWrite 201 290
356% 269 MB/s
Min Avg Max
21.9 4K Read 23.5 24.2
25.7 4K Write 25.9 26.1
12.9 4K Mixed 21.3 24.8
1,693% 23.6 MB/s
Min Avg Max
23.3 DQ Read 25.2 27.1
32.8 DQ Write 35.5 37.7
12.8 DQ Mixed 24.3 30.3
2,127% 28.3 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
66GB free, PID 0567
Operating at USB 3.0 Speed
231% Outstanding
Read 394
Write 405
Mixed 320
476% 373 MB/s
4K Read 24.2
4K Write 26
4K Mixed 12.9
1,413% 21 MB/s
DQ Read 24.7
DQ Write 34.9
DQ Mixed 12.8
1,715% 24.2 MB/s
243GB free, PID 0567
Operating at USB 3.0 Speed
SusWrite @10s intervals: 321 341 357 276 231 213 MB/s
203% Outstanding
Read 382
Write 379
Mixed 346
SusWrite 290
472% 349 MB/s
4K Read 23.8
4K Write 25.7
4K Mixed 24.4
1,792% 24.6 MB/s
DQ Read 27.1
DQ Write 36.5
DQ Mixed 30.3
2,373% 31.3 MB/s
548GB free, PID 0567
Operating at USB 3.0 Speed
SusWrite @10s intervals: 184 185 185 187 186 186 MB/s
183% Outstanding
Read 393
Write 201
Mixed 299
SusWrite 185
340% 269 MB/s
4K Read 24.1
4K Write 26.1
4K Mixed 24.8
1,821% 25 MB/s
DQ Read 25.7
DQ Write 32.8
DQ Mixed 27.4
2,143% 28.6 MB/s
909GB free, PID 0567
Operating at USB 3.0 Speed
SusWrite @10s intervals: 126 127 127 127 127 127 MB/s
131% Outstanding
Read 132
Write 126
Mixed 126
SusWrite 127
174% 128 MB/s
4K Read 21.9
4K Write 25.8
4K Mixed 23.2
1,748% 23.6 MB/s
DQ Read 23.3
DQ Write 37.7
DQ Mixed 26.7
2,277% 29.2 MB/s
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