I just did boot time test using two different cards.
Start clock: When I press the power on
Stop clock: When I heard sound coming out from HD+
Sandisk: 53 seconds.
Samsung: 61 seconds.
Here are my two cards with CrystalDiskMark data.
8GB Samsung class 6 micro SD card.
Read Write (MB/S)
Seq: 20.79 11.02
512K 20.25 1.071
4K 3.594 0.215
4K(qd32) 3.292 0.211
32 GB Sandisk class 4 Micro SD card
Read Write (MB/S)
Seq: 20.69 5.553
512K 20.22 3.984
4K 3.499 1.622
4K(qd32) 4.279 2.109
d*****0 发帖数: 68029
2
你可以比一下antutu的IO得分
p*********r 发帖数: 4593
3
I am not sure if antutu or quadrant IO benchmark reflect to the real use
cases. People here taking about 4K read/write performance is more important,
but I haven't found any article about this.