TEST
YOUR USB

Samsung (ExtHD)

SSD 840 EVO 1TB

▲ 500 ▼

Release date ≈ Q2 2014.

Average Bench: 65% (8th of 639)

Based on 7 user benchmarks.  Device: VID 152d PID 2329 Model: Samsung SSD 840 EVO 1TB
Poor: 53%Average: 65% Great: 90%

Above average average bench

The Samsung SSD 840 EVO 1TB averaged 34.9% 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-64Thread Write Speed 20.3MB/s
Avg. 4K Random Write Speed 15.5MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Samsung SSD 840 EVO 1TB is 36.5%. This is a relatively wide range which indicates that the Samsung SSD 840 EVO 1TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Read Speed 42.2MB/s
Avg. Sequential Write Speed 36.4MB/s
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Average Bench

(Based on 7 samples)
Rank 865%
Min Avg Max
33.8 Read 42.2 51.8
28.4 Write 36.4 42.2
32 Mixed 38.2 42.2
37.8 SusWrite 39.4 42.2
52.8% 39 MB/s
Min Avg Max
10.2 4K Read 14.4 18.8
11.9 4K Write 15.5 23
8.25 4K Mixed 13.2 18.9
1,030% 14.4 MB/s
Min Avg Max
12.1 DQ Read 14.3 16.5
16.2 DQ Write 20.3 25
7.52 DQ Mixed 14 20
1,218% 16.2 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
718GB free, PID 2329
Operating at USB 2.0 Speed
SusWrite @10s intervals: 40 40 40 40 40 40 MB/s
61.4% Good
Read 38.3
Write 40
Mixed 39
SusWrite 40.3
54% 39.4 MB/s
4K Read 13.3
4K Write 14.3
4K Mixed 14
1,012% 13.9 MB/s
DQ Read 12.8
DQ Write 22.8
DQ Mixed 16.5
1,384% 17.4 MB/s
265GB free, PID 2329
Operating at USB 2.0 Speed
SusWrite @10s intervals: 40 39 40 40 40 40 MB/s
59.8% Above average
Read 39.6
Write 39.7
Mixed 39
SusWrite 39.7
54% 39.5 MB/s
4K Read 16.8
4K Write 13.5
4K Mixed 15.2
1,038% 15.2 MB/s
DQ Read 15.4
DQ Write 19.6
DQ Mixed 17.2
1,309% 17.4 MB/s
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