TEST
YOUR USB

ST1500LM (ExtHD)

012-1R817G 1.5TB

▲ 500 ▼

Release date ≈ Q2 2017.

Average Bench: 32% (79th of 639)

Based on 124 user benchmarks.  Device: VID 18a5 PID 0237 Model: ST1500LM 012-1R817G
Poor: 15%Average: 32% Great: 50%

Poor average bench

The ST1500LM 012-1R817G 1.5TB averaged 67.9% 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 Random Write Speed 3.34MB/s
Avg. Sequential Write Speed 68.4MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the ST1500LM 012-1R817G 1.5TB is 35.1%. This is a relatively wide range which indicates that the ST1500LM 012-1R817G 1.5TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 1.13MB/s
Avg. Sequential Read Speed 50.8MB/s
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Average Bench

(Based on 124 samples)
Rank 7932%
Min Avg Max
17.5 Read 50.8 105
17 Write 68.4 131
9.18 Mixed 50.5 97.8
18.9 SusWrite 65.2 123
82.4% 58.7 MB/s
Min Avg Max
0.33 4K Read 1.13 1.8
0.98 4K Write 3.34 5.4
0.13 4K Mixed 0.55 0.9
137% 1.67 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
1TB free, PID 0237
Operating at USB 3.0 Speed
SusWrite @10s intervals: 101 125 119 111 108 117 MB/s
50% Average
Read 99.6
Write 126
Mixed 85.9
SusWrite 113
147% 106 MB/s
4K Read 1.8
4K Write 3.4
4K Mixed 0.7
146% 1.97 MB/s
779GB free, PID 0237
Operating at USB 3.0 Speed
SusWrite @10s intervals: 92 103 99 105 95 101 MB/s
44.8% Average
Read 87.6
Write 107
Mixed 84.3
SusWrite 98.9
131% 94.5 MB/s
4K Read 1.5
4K Write 3.3
4K Mixed 0.6
138% 1.8 MB/s
328GB free, PID 0237
Operating at USB 2.1 Speed
SusWrite @10s intervals: 39 39 39 40 40 39 MB/s
23.7% Poor
Read 33.8
Write 39.5
Mixed 30.7
SusWrite 39.4
50% 35.8 MB/s
4K Read 1.5
4K Write 3.2
4K Mixed 0.6
135% 1.77 MB/s
1TB free, PID 0237
Operating at USB 2.1 Speed
SusWrite @10s intervals: 29 37 39 38 38 38 MB/s
22.5% Poor
Read 36.4
Write 37.4
Mixed 31
SusWrite 36.6
48% 35.3 MB/s
4K Read 1.4
4K Write 2.9
4K Mixed 0.7
128% 1.67 MB/s
757GB free, PID 0237
Operating at USB 2.1 Speed
SusWrite @10s intervals: 36 37 37 38 38 38 MB/s
18.2% Very poor
Read 34.5
Write 35.3
Mixed 22
SusWrite 37.4
44% 32.3 MB/s
4K Read 2
4K Write 1.5
4K Mixed 0.4
72% 1.3 MB/s
124 MORE »
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  • Best user rated - User sentiment trumps benchmarks for this comparison.
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  • Fastest real world speed - Real World Speed measures performance for typical consumers.

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