TEST
YOUR USB

Samsung (ExtHD)

SSD 840 EVO 120G 120GB

▲ 500 ▼

Release date ≈ Q2 2015.

Average Bench: 174% (1st of 639)

Based on 20 user benchmarks.  Device: VID 174c PID 55aa Model: Samsung SSD 840 EVO 120G
Poor: 32%Average: 174% Great: 258%

Outstanding average bench

The Samsung SSD 840 EVO 120G 120GB averaged 74.3% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung SSD 840 EVO 120G 120GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 41.5MB/s
Avg. 4K Random Write Speed 30.6MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Samsung SSD 840 EVO 120G 120GB is 226%. This is a particularly wide range which indicates that the Samsung SSD 840 EVO 120G 120GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Read Speed 254MB/s
Avg. Sustained Write Speed 109MB/s
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Average Bench

(Based on 20 samples)
Rank 1174%
Min Avg Max
26.9 Read 254 401
17.2 Write 235 389
20.5 Mixed 224 375
25.5 SusWrite 109 175
270% 205 MB/s
Min Avg Max
5.2 4K Read 21.1 33.1
4.3 4K Write 30.6 64.6
4.8 4K Mixed 19.8 36
1,794% 23.9 MB/s
Min Avg Max
13.4 DQ Read 26.7 36.2
15.7 DQ Write 41.5 77.7
11.4 DQ Mixed 24.2 44.6
2,335% 30.8 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
90GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 290 135 143 143 142 136 MB/s
220% Outstanding
Read 401
Write 389
Mixed 291
SusWrite 165
406% 312 MB/s
4K Read 25.8
4K Write 39
4K Mixed 30.4
2,456% 31.7 MB/s
DQ Read 27.3
DQ Write 39.3
DQ Mixed 32.2
2,533% 32.9 MB/s
35GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 166 148 133 133 133 132 MB/s
179% Outstanding
Read 285
Write 262
Mixed 233
SusWrite 141
302% 230 MB/s
4K Read 20.1
4K Write 33.2
4K Mixed 23
1,986% 25.4 MB/s
DQ Read 25.3
DQ Write 38.7
DQ Mixed 29.5
2,414% 31.2 MB/s
34GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 127 128 123 37 25 23 MB/s
179% Outstanding
Read 132
Write 122
Mixed 126
SusWrite 77.1
153% 114 MB/s
4K Read 27.5
4K Write 44.3
4K Mixed 32.1
2,701% 34.6 MB/s
DQ Read 32.2
DQ Write 57.5
DQ Mixed 37.9
3,364% 42.5 MB/s
73GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 295 141 141 141 141 141 MB/s
174% Outstanding
Read 358
Write 354
Mixed 312
SusWrite 167
394% 298 MB/s
4K Read 24.2
4K Write 26
4K Mixed 24.3
1,801% 24.8 MB/s
DQ Read 25.6
DQ Write 34.1
DQ Mixed 26.7
2,163% 28.8 MB/s
37GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 233 55 44 40 37 34 MB/s
137% Outstanding
Read 250
Write 220
Mixed 220
SusWrite 73.7
248% 191 MB/s
4K Read 21.4
4K Write 25.9
4K Mixed 22.7
1,732% 23.3 MB/s
DQ Read 23.1
DQ Write 26.1
DQ Mixed 23.8
1,783% 24.3 MB/s
107GB free, PID 55aa
Operating at USB 2.1 Speed
SusWrite @10s intervals: 26 26 26 25 26 26 MB/s
31.6% Below average
Read 29.3
Write 25.8
Mixed 27.3
SusWrite 25.9
37% 27.1 MB/s
4K Read 7.2
4K Write 6.5
4K Mixed 7
486% 6.9 MB/s
20 MORE »
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Intel Core i5-12600K $170Nvidia RTX 4060 $293Crucial MX500 250GB $39
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Intel Core i5-13600K $260Nvidia RTX 4070 $550Samsung 870 Evo 250GB $45
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