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%
424GB free, PID 558c
Operating at USB 3.1 Speed
SusWrite @10s intervals: 427 413 414 433 429 430 MB/s
386% Outstanding
Read 486
Write 453
Mixed 323
SusWrite 424
563% 421 MB/s
4K Read 27.2
4K Write 70.6
4K Mixed 37.6
3,781% 45.1 MB/s
DQ Read 31.6
DQ Write 107
DQ Mixed 45.1
5,304% 61.4 MB/s
424GB free, PID 558c
Operating at USB 3.1 Speed
SusWrite @10s intervals: 452 426 438 439 439 439 MB/s
277% Outstanding
Read 457
Write 452
Mixed 318
SusWrite 439
562% 416 MB/s
4K Read 21.1
4K Write 35.9
4K Mixed 26.7
2,208% 27.9 MB/s
DQ Read 23.4
DQ Write 38
DQ Mixed 27.4
2,311% 29.6 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
300 MORE »
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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.

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Speed Comparisons

vs SanDisk Extreme 64GB
vs SanDisk Extreme 32GB
vs SanDisk Ultra Fit 32GB
vs SanDisk Extreme 16GB
vs Lexar JumpDrive P20 64GB
vs Adata DashDrive UV128 32GB
vs SanDisk Ultra Fit 16GB
vs Corsair Flash Voyager GT 32GB
vs Lexar JumpDrive P20 32GB

639 Drives (Compared) Thousands of user benchmarks compiled into one comparison list

See how consistently different USBs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

Storage Devices FAQ
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
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What is sequential read speed?
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USB Flash Drives
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What is the Flash Drive value for money rating?
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File system considerations?
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 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $177Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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