TEST
YOUR USB

SanDisk (ExtHD)

Extreme SSD 1TB

▲ 500 ▼

Release date ≈ Q3 2018.

Average Bench: 187% (1st of 639)

Based on 300 user benchmarks.  Device: VID 0781 PID 558c Model: SanDisk Extreme SSD
Poor: 30%Average: 187% Great: 342%

Outstanding average bench

The SanDisk Extreme SSD 1TB averaged 87.0% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the SanDisk Extreme SSD 1TB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 43MB/s
Avg. 4K Random Write Speed 29.9MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the SanDisk Extreme SSD 1TB is 312%. This is a particularly wide range which indicates that the SanDisk Extreme SSD 1TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Read Speed 261MB/s
Avg. 4K Random Read Speed 16.8MB/s
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Average Bench

(Based on 300 samples)
Rank 1187%
Min Avg Max
30.5 Read 261 451
20.8 Write 253 454
24.7 Mixed 190 311
21.8 SusWrite 245 447
320% 237 MB/s
Min Avg Max
5.51 4K Read 16.8 25.8
5.11 4K Write 29.9 63.4
5.7 4K Mixed 20.5 34
1,776% 22.4 MB/s
Min Avg Max
13.2 DQ Read 22.4 29.9
17.8 DQ Write 43 86.4
13.7 DQ Mixed 25.4 40
2,410% 30.3 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
460GB free, PID 558c
Operating at USB 3.1 Speed
SusWrite @10s intervals: 400 398 399 396 398 398 MB/s
261% Outstanding
Read 386
Write 403
Mixed 285
SusWrite 398
501% 368 MB/s
4K Read 21.3
4K Write 36.7
4K Mixed 23.4
2,123% 27.1 MB/s
DQ Read 17.4
DQ Write 47.6
DQ Mixed 29.6
2,690% 31.5 MB/s
834GB free, PID 558c
Operating at USB 3.1 Speed
SusWrite @10s intervals: 395 396 401 401 401 400 MB/s
229% Outstanding
Read 391
Write 401
Mixed 298
SusWrite 399
506% 372 MB/s
4K Read 21.4
4K Write 26
4K Mixed 21.5
1,695% 23 MB/s
DQ Read 17.3
DQ Write 36.3
DQ Mixed 26.2
2,190% 26.6 MB/s
189GB free, PID 558c
Operating at USB 3.1 Speed
SusWrite @10s intervals: 222 344 351 366 376 376 MB/s
203% Outstanding
Read 360
Write 345
Mixed 242
SusWrite 339
432% 322 MB/s
4K Read 18.4
4K Write 23.6
4K Mixed 21
1,585% 21 MB/s
DQ Read 23.7
DQ Write 33.3
DQ Mixed 26.1
2,108% 27.7 MB/s
64GB free, PID 558c
Operating at USB 2.1 Speed
SusWrite @10s intervals: 39 40 41 41 41 41 MB/s
67.1% Good
Read 51.7
Write 40.4
Mixed 41.2
SusWrite 40.3
58% 43.4 MB/s
4K Read 15.9
4K Write 15.3
4K Mixed 15.4
1,103% 15.5 MB/s
DQ Read 14.1
DQ Write 19.9
DQ Mixed 16.1
1,277% 16.7 MB/s
510GB free, PID 558c
Operating at USB 2.1 Speed
SusWrite @10s intervals: 39 39 39 39 39 39 MB/s
63.9% Good
Read 39.7
Write 39.8
Mixed 38.9
SusWrite 38.9
54% 39.3 MB/s
4K Read 17.8
4K Write 14.8
4K Mixed 16.2
1,120% 16.3 MB/s
DQ Read 15.1
DQ Write 19.8
DQ Mixed 16.9
1,304% 17.3 MB/s
374GB free, PID 558c
Operating at USB 2.1 Speed
SusWrite @10s intervals: 39 39 39 39 39 39 MB/s
61.4% Good
Read 50
Write 39
Mixed 38.5
SusWrite 38.9
55% 41.6 MB/s
4K Read 17.7
4K Write 13.5
4K Mixed 15.7
1,059% 15.6 MB/s
DQ Read 15.1
DQ Write 18.8
DQ Mixed 16.3
1,250% 16.7 MB/s
300 MORE »
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