The Fastest SDHC Cards

These are the results of our speed test, sorted by writespeed performance. Click the bold tableheaders to make your own sorting.

Product Class UHS GoClass Writespeed MB/s Readspeed MB/s
1. Integral Ultima Pro X 32 GB 10 I G85 85.33 95.35
2. Sandisk Extreme Pro 95MB/s 633X 8 GB 10 I G81 80.95 89.92
3. Sandisk Extreme Pro 95MB/s 16 GB 10 1 G78 78.39 86.08
4. Integral Ultima Pro X 16 GB 10 I G63 63.58 92.44
5. Sandisk Extreme Pro 45MB/s 8 GB 10 I G43 43.19 46.78
6. Samsung PRO 80/40MB/s 16 GB 10 I G38 38.81 79.38
7. Verbatim Premium 32 GB 10 I G31 31.40 32.47
8. Sandisk Extreme 30MB/s 200X 32 GB 10 G22 21.92 23.57
9. Icidu 32 GB 10 G21 21.60 23.42
10. Transcend Ultimate 32 GB 10 G21 21.55 23.40
11. Transcend Ultimate 8 GB 10 G21 21.55 23.42
12. Transcend Ultimate 16 GB 10 G21 21.51 23.01
13. Traxdata Pro Series 16 GB 6 G21 21.19 19.90
14. Sandisk Extreme III 16 GB 6 G21 20.92 23.59
15. Eye-Fi Mobi 8 GB 10 G20 20.20 19.98
16. Icidu 4 GB 10 G20 20.01 23.42
17. Kingston Ultimate 100X 8 GB 6 G19 19.78 22.67
18. Sandisk Extreme III 8 GB 6 G19 19.04 23.57
19. Sony SF-16NX 16 GB 10 G18 18.26 23.24
20. Traxdata Pro Series 8 GB 6 G17 17.82 23.26
21. Sandisk Ultra II 4 GB 4 G17 17.61 17.91
22. Samsung 24 MB/s 32 GB 6 G17 17.54 23.51
23. Kingston Ultimate 100X 16 GB 10 G15 15.64 23.17
24. Icidu 8 GB 10 G14 14.78 20.99
25. Integral Ultima Pro 8 GB 10 I G14 14.35 46.36
26. Sandisk Ultra 4 GB 4 G14 13.97 23.59
27. Traxdata E Series 8 GB 2 G12 12.54 19.52
28. Sandisk Ultra II 32 GB 4 G12 12.43 23.58
29. Sandisk Eye-Fi 4 GB 4 G12 12.09 23.27
30. Icidu 16 GB 10 G12 12.02 23.32
31. Transcend Ultimate 4 GB 10 G11 11.85 19.97
32. Sandisk Eye-Fi 8 GB 4 G11 11.84 23.42
33. Eye-Fi SanDisk 8 GB 4 G11 11.84 23.42
34. Kingston 16 GB 4 G11 11.81 20.56
35. Lexar Multi-Use 8 GB 2 G11 11.18 18.72
36. Icidu 16 GB 4 G11 11.15 20.33
37. Duracell Pro Photo 8 GB 4 G11 11.05 20.07
38. Sandisk SDHC Card 16 GB 4 G6 5.90 11.47
39. Icidu 4 GB 4 G5 5.75 18.18
40. Icidu 8 GB 4 G5 5.31 19.31
41. Sandisk SDHC Card 8 GB 4 G5 5.18 9.71
42. Sandisk 32 GB 4 G5 5.12 9.59
43. Icidu 32 GB 4 G4 4.78 19.73
44. Traxdata E Series 16 GB 2 G3 3.20 8.66

All SDHC Cards

Duracell
Product Class UHS GoClass Writespeed Readspeed
Duracell Pro Photo 8 GB 4 G11 11.05 MB/s 20.07 MB/s
Eye-Fi
Product Class UHS GoClass Writespeed Readspeed
Eye-Fi Mobi 8 GB 10 G20 20.20 MB/s 19.98 MB/s
Eye-Fi SanDisk 8 GB 4 G11 11.84 MB/s 23.42 MB/s
Icidu
Product Class UHS GoClass Writespeed Readspeed
Icidu 32 GB 10 G21 21.60 MB/s 23.42 MB/s
Icidu 4 GB 10 G20 20.01 MB/s 23.42 MB/s
Icidu 8 GB 10 G14 14.78 MB/s 20.99 MB/s
Icidu 16 GB 10 G12 12.02 MB/s 23.32 MB/s
Icidu 16 GB 4 G11 11.15 MB/s 20.33 MB/s
Icidu 4 GB 4 G5 5.75 MB/s 18.18 MB/s
Icidu 8 GB 4 G5 5.31 MB/s 19.31 MB/s
Icidu 32 GB 4 G4 4.78 MB/s 19.73 MB/s
Integral
Product Class UHS GoClass Writespeed Readspeed
Integral Ultima Pro X 32 GB 10 I G85 85.33 MB/s 95.35 MB/s
Integral Ultima Pro X 16 GB 10 I G63 63.58 MB/s 92.44 MB/s
Integral Ultima Pro 8 GB 10 I G14 14.35 MB/s 46.36 MB/s
Kingston
Product Class UHS GoClass Writespeed Readspeed
Kingston Ultimate 100X 8 GB 6 G19 19.78 MB/s 22.67 MB/s
Kingston Ultimate 100X 16 GB 10 G15 15.64 MB/s 23.17 MB/s
Kingston 16 GB 4 G11 11.81 MB/s 20.56 MB/s
Lexar
Product Class UHS GoClass Writespeed Readspeed
Lexar Multi-Use 8 GB 2 G11 11.18 MB/s 18.72 MB/s
Samsung
Product Class UHS GoClass Writespeed Readspeed
Samsung PRO 80/40MB/s 16 GB 10 I G38 38.81 MB/s 79.38 MB/s
Samsung 24 MB/s 32 GB 6 G17 17.54 MB/s 23.51 MB/s
Sandisk
Product Class UHS GoClass Writespeed Readspeed
Sandisk Extreme Pro 95MB/s 633X 8 GB 10 I G81 80.95 MB/s 89.92 MB/s
Sandisk Extreme Pro 95MB/s 16 GB 10 1 G78 78.39 MB/s 86.08 MB/s
Sandisk Extreme Pro 45MB/s 8 GB 10 I G43 43.19 MB/s 46.78 MB/s
Sandisk Extreme 30MB/s 200X 32 GB 10 G22 21.92 MB/s 23.57 MB/s
Sandisk Extreme III 16 GB 6 G21 20.92 MB/s 23.59 MB/s
Sandisk Extreme III 8 GB 6 G19 19.04 MB/s 23.57 MB/s
Sandisk Ultra II 4 GB 4 G17 17.61 MB/s 17.91 MB/s
Sandisk Ultra 4 GB 4 G14 13.97 MB/s 23.59 MB/s
Sandisk Ultra II 32 GB 4 G12 12.43 MB/s 23.58 MB/s
Sandisk Eye-Fi 4 GB 4 G12 12.09 MB/s 23.27 MB/s
Sandisk Eye-Fi 8 GB 4 G11 11.84 MB/s 23.42 MB/s
Sandisk SDHC Card 16 GB 4 G6 5.90 MB/s 11.47 MB/s
Sandisk SDHC Card 8 GB 4 G5 5.18 MB/s 9.71 MB/s
Sandisk 32 GB 4 G5 5.12 MB/s 9.59 MB/s
Sony
Product Class UHS GoClass Writespeed Readspeed
Sony SF-16NX 16 GB 10 G18 18.26 MB/s 23.24 MB/s
Transcend
Product Class UHS GoClass Writespeed Readspeed
Transcend Ultimate 32 GB 10 G21 21.55 MB/s 23.40 MB/s
Transcend Ultimate 8 GB 10 G21 21.55 MB/s 23.42 MB/s
Transcend Ultimate 16 GB 10 G21 21.51 MB/s 23.01 MB/s
Transcend Ultimate 4 GB 10 G11 11.85 MB/s 19.97 MB/s
Traxdata
Product Class UHS GoClass Writespeed Readspeed
Traxdata Pro Series 16 GB 6 G21 21.19 MB/s 19.90 MB/s
Traxdata Pro Series 8 GB 6 G17 17.82 MB/s 23.26 MB/s
Traxdata E Series 8 GB 2 G12 12.54 MB/s 19.52 MB/s
Traxdata E Series 16 GB 2 G3 3.20 MB/s 8.66 MB/s
Verbatim
Product Class UHS GoClass Writespeed Readspeed
Verbatim Premium 32 GB 10 I G31 31.40 MB/s 32.47 MB/s

Test Method

We tested the CompactFlash cards with a Pretec USB 3.0 Card Reader and CrystalDiskMark 3.0 x64. The software ran five 1000MB write- and readtests on the product. We noted the fastest results. Results can differ per computer, so we use the same hard- and software on every test. The fastest results on our system, will be the fastest on yours as well.

1GB is normally 1.024MB. Vendors however, count 1GB as 1.000MB. We count the same way vendors do.