Reference
Transcend 8GB Class 6 MicroSD (FAT32)
20 MB Data Write to SD
dd if=/dev/zero of=xxx bs=1024 count=20000
20480000 bytes transferred in 3.816 secs (5366876 bytes/sec)
5.12MB / s
20 MB Data Read from SD
dd if=xxx of=/dev/null
20480000 bytes transferred in 0.327 secs (62629969 bytes/sec)
59.73 MB / s
200 MB Data Write to SD
dd if=/dev/zero of=xxx bs=1024 count=20000
204800000 bytes transferred in 20.057 secs (10210898 bytes/sec)
9.73 MB / s
200 MB Data Read from SD
dd if=xxx of=/dev/null
204800000 bytes transferred in 123.918 secs (1652705 bytes/sec)
1.58 MB / s |