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CrystalDiskMark 3.0.2 x64 (C) 2007-2013 hiyohiyo
SANDISK ULTRA SDHC CLASS 10 32GB 30MB/SEC UHS-I
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* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 44.069 MB/s
Sequential Write : 11.137 MB/s
Random Read 512KB : 39.031 MB/s
Random Write 512KB : 7.748 MB/s
Random Read 4KB (QD=1) : 3.368 MB/s [ 822.3 IOPS]
Random Write 4KB (QD=1) : 1.158 MB/s [ 282.7 IOPS]
Random Read 4KB (QD=32) : 3.454 MB/s [ 843.3 IOPS]
Random Write 4KB (QD=32) : 0.641 MB/s [ 156.5 IOPS]
Test : 1000 MB [J: 0.0% (0.0/29.7 GB)] (x5)
Date : 2013/04/13 21:12:51
OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
I bought one such card (and 3 more ordered), tried to record video in ALL-I.ALL-I (normal to the native firmware 1.1.3) recording is not possible, constantly interrupted recording, a buffer overflow. I will return 3 cards ordered.
For comparison with the memory card Transend class 10 (normal, not UHS-I) 16 GB recording speed (Sequential Write) - 13-14 Mb \ s. By the way, the maximum bit rate of some of my files stored in the ALL-I - 95 Mbit / s. If we translate this into megabytes per second - 11,875. That is, card need write speed not less than 12 megabits per second.