Performance (MB/s) using given block size (bytes)

 

Model

Size

 

Type

Flash

Class

  

4K

8K

16K

32K

64K

128K

256K

512K

1M

Highest

Kingston Elite Pro

32GB

 

CF

MLC

133x

 

Read:

12.5

18.7

24.6

34.6

46.0

54.8

55.7

56.2

56.9

56.9

       

Write:

10.8

13.6

13.0

16.0

19.5

25.0

26.4

21.9

27.6

27.6

Super Talent RC8

25GB

 

USB

MLC

U

 

Read:

8.0

13.0

21.1

25.6

25.9

27.5

28.7

29.0

29.6

29.6

       

Write:

8.1

13.0

18.5

21.5

25.6

25.2

26.4

26.9

27.2

27.2

Pretec

32GB

 

SD

MLC

16

 

Read:

9.1

12.6

15.7

17.8

19.1

19.9

20.3

20.6

20.6

20.6

       

Write:

2.8

4.9

8.0

11.4

14.6

17.9

18.9

19.5

19.5

19.5

Transcend

8GB

 

uSD

MLC

6

 

Read:

5.1

8.2

11.7

15.2

17.3

18.9

19.8

20.3

20.3

20.3

       

Write:

2.0

3.3

6.3

9.6

13.5

16.3

18.2

19.4

19.4

19.4

Integral

16GB

 

uSD

MLC

10

 

Read:

4.6

6.8

10.5

14.0

16.4

18.4

19.6

20.2

20.3

20.3

       

Write:

1.9

3.2

6.1

9.3

13.1

16.1

18.2

19.4

19.4

19.4

Integral Endurance

4GB

 

SD

SLC

10

 

Read:

9.0

12.6

15.7

17.0

18.8

19.8

20.3

20.6

20.6

20.6

       

Write:

2.4

5.1

11.1

14.0

16.2

17.5

18.3

18.7

18.7

18.7

Toshiba AC100-10U (Toshiba)

8GB

 

eMMC

MLC

6

 

Read:

7.2

10.5

15.5

19.7

22.8

24.9

26.0

26.7

26.7

26.7

       

Write:

1.5

3.0

6.1

10.1

13.6

15.7

17.3

17.6

17.8

17.8

Team

32GB

 

SD

MLC

10

 

Read:

5.2

8.5

11.4

13.6

16.5

18.4

19.5

20.1

20.2

20.2

       

Write:

0.9

2.1

6.5

10.4

13.8

15.5

16.5

17.1

17.1

17.1

Play.com (Kingston)

16GB

 

USB

MLC

U

 

Read:

5.9

10.0

15.9

21.6

25.3

26.3

27.7

28.6

29.6

29.6

       

Write:

1.7

3.0

5.6

11.6

16.9

12.8

13.9

16.0

15.2

16.9

Unbranded (Kingston?)

8GB

 

uSD

MLC

4

 

Read:

8.3

10.7

14.2

16.7

18.6

19.7

20.3

20.6

20.6

20.6

       

Write:

2.1

4.0

7.1

9.3

10.6

11.4

11.8

12.1

12.1

12.1

Toshiba AC100-10U (SanDisk)

8GB

 

eMMC

MLC

U

 

Read:

6.1

11.0

16.9

22.1

26.2

29.0

30.7

31.6

31.6

31.6

       

Write:

0.9

1.3

3.6

5.0

7.1

9.1

10.5

11.4

11.4

11.4

MyMemory.com

32GB

 

SD

MLC

10

 

Read:

6.7

9.2

12.8

15.8

18.0

19.3

20.1

20.5

20.5

20.5

       

Write:

2.0

3.5

6.7

8.3

9.4

10.2

10.6

10.8

10.9

10.9

SanDisk Extreme Pro (95MB/s)

8GB

 

SD

MLC

UHS-I

 

Read:

3.3

4.8

6.0

7.0

7.6

8.0

8.1

8.3

8.5

8.5

       

Write:

1.7

3.3

5.6

7.0

8.1

8.7

8.9

9.2

9.6

9.6

SanDisk Mobile Ultra

16GB

 

uSD

MLC

6

 

Read:

6.6

10.2

14.1

16.9

18.7

19.8

20.5

20.7

20.8

20.8

       

Write:

1.1

4.8

6.3

7.4

7.3

7.5

7.3

7.9

7.6

7.9

Unbranded (Fake)

1GB

 

uSD

MLC

U

 

Read:

9.8

11.4

12.4

12.9

13.3

13.4

13.5

13.6

13.6

13.6

       

Write:

3.8

4.7

5.1

5.4

5.7

5.8

5.8

5.9

5.9

5.9

Unbranded (Kingston?)

32GB

 

uSD

MLC

4

 

Read:

2.6

4.6

6.6

9.3

12.2

14.5

16.0

16.8

16.8

16.8

       

Write:

1.8

3.0

4.1

4.9

4.8

4.8

4.8

4.8

4.8

4.9

SanDisk

8GB

 

uSD

MLC

2

 

Read:

1.1

2.2

3.6

5.4

7.4

9.0

9.7

10.5

10.5

10.5

       

Write:

1.6

2.2

3.0

3.2

3.2

3.2

3.2

3.2

3.2

3.2

                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
                  
      

Performance (IOPS), 4KB blocks

 

Model

Size

 

Type

Flash

Class

Random Read

Random Write

Write

Rewrite

 

Super Talent RC8

25GB

 

USB

MLC

U

1788

1982

788

1979

 

SanDisk Extreme Pro (95MB/s)

8GB

 

SD

MLC

10I

1172

133

162

606

 

Toshiba AC100-10U (SanDisk)

8GB

 

eMMC

MLC

U

1261

70

119

265

 

Integral Endurance

4GB

 

SD

SLC

10

2141

19

  6

557

 

Toshiba AC100-10U (Toshiba)

8GB

 

eMMC

MLC

U

1593

14

128

378

 

SanDisk

8GB

 

uSD

MLC

2

222

14

186

367

 

Unbranded (Fake)

1GB

 

uSD

MLC

U

1738

6

295

920

 

Kingston Elite Pro

32GB

 

CF

MLC

133x

1237

6

103

140

 

SanDisk Mobile Ultra

16GB

 

uSD

MLC

6

1099

5

132

369

 

Unbranded (Kingston?)

8GB

 

uSD

MLC

4

1735

4

44

516

 

Play.com (Kingston)

16GB

 

USB

MLC

U

1417

3

92

402

 

Team

32GB

 

SD

MLC

10

574

3

89

233

 

Integral

16GB

 

uSD

MLC

10

1039

2

148

462

 

Transcend

8GB

 

uSD

MLC

6

843

2

161

498

 

Pretec

32GB

 

SD

MLC

16

2185

 1

174

664

 

MyMemory.com

32GB

 

SD

MLC

10

1457

1

127

489

 

Unbranded (Kingston?)

32GB

 

uSD

MLC

4

574

1

14

421