TEST
YOUR USB

(ExtHD)

ST33000651NS 3TB

▲ 500 ▼

Release date ≈ Q2 2018.

Average Bench: 35.1% (57th of 639)

Based on 12 user benchmarks.  Device: VID 2537 PID 1066 Model: ST33000651NS
Poor: 16%Average: 35.1% Great: 55%

Poor average bench

The ST33000651NS 3TB averaged 64.8% 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 2.45MB/s
Avg. Sustained Write Speed 99.3MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the ST33000651NS 3TB is 39.5%. This is a relatively wide range which indicates that the ST33000651NS 3TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 0.8MB/s
Avg. Sequential Read Speed 78.5MB/s
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Average Bench

(Based on 12 samples)
Rank 5735.1%
Min Avg Max
27.1 Read 78.5 135
19.3 Write 74.3 130
11.5 Mixed 41.3 69.2
15.7 SusWrite 99.3 130
99.4% 73.3 MB/s
Min Avg Max
0.5 4K Read 0.8 1
2.25 4K Write 2.45 2.6
0.36 4K Mixed 0.91 1.2
117% 1.39 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
1.5TB free, PID 1066
Operating at USB 3.0 Speed
SusWrite @10s intervals: 130 133 129 128 130 133 MB/s
55.6% Above average
Read 133
Write 130
Mixed 66.6
SusWrite 130
154% 115 MB/s
4K Read 0.8
4K Write 2.5
4K Mixed 1.1
125% 1.47 MB/s
1TB free, PID 1066
Operating at USB 3.0 Speed
SusWrite @10s intervals: 125 126 125 125 125 125 MB/s
55% Above average
Read 135
Write 129
Mixed 69.2
SusWrite 125
152% 114 MB/s
4K Read 0.9
4K Write 2.6
4K Mixed 1.1
129% 1.53 MB/s
997GB free, PID 1066
Operating at USB 3.0 Speed
SusWrite @10s intervals: 130 128 129 130 130 129 MB/s
54.3% Above average
Read 130
Write 124
Mixed 65
SusWrite 129
150% 112 MB/s
4K Read 0.9
4K Write 2.3
4K Mixed 1.2
122% 1.47 MB/s
997GB free, PID 1066
Operating at USB 3.0 Speed
SusWrite @10s intervals: 130 127 128 130 130 131 MB/s
54.3% Above average
Read 128
Write 119
Mixed 66.7
SusWrite 129
148% 111 MB/s
4K Read 0.9
4K Write 2.4
4K Mixed 1.2
126% 1.5 MB/s
997GB free, PID 1066
Operating at USB 3.0 Speed
SusWrite @10s intervals: 129 130 129 131 129 132 MB/s
52.7% Above average
Read 118
Write 119
Mixed 65.3
SusWrite 130
146% 108 MB/s
4K Read 1
4K Write 2.3
4K Mixed 1.1
119% 1.47 MB/s
815GB free, PID 1066
Operating at USB 3.0 Speed
SusWrite @10s intervals: 115 119 119 119 119 118 MB/s
51.6% Above average
Read 124
Write 124
Mixed 63.8
SusWrite 118
143% 107 MB/s
4K Read 0.8
4K Write 2.5
4K Mixed 1.1
125% 1.47 MB/s
1.5TB free, PID 1066
Operating at USB 2.1 Speed
SusWrite @10s intervals: 16 16 16 16 16 16 MB/s
16.1% Very poor
Read 30.5
Write 30
Mixed 24.8
SusWrite 15.9
34% 25.3 MB/s
4K Read 0.8
4K Write 2.6
4K Mixed 1.1
129% 1.5 MB/s
1.5TB free, PID 1066
Operating at USB 2.1 Speed
SusWrite @10s intervals: 16 15 16 16 16 16 MB/s
15.5% Very poor
Read 29.3
Write 29.2
Mixed 24
SusWrite 15.7
32% 24.5 MB/s
4K Read 0.8
4K Write 2.5
4K Mixed 1.1
125% 1.47 MB/s
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