DT MI
Well-Known Member
- Joined
- Oct 10, 2014
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- Location
- Michigan
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- Dash Cam
- More than my wife thinks I need.
Just did a quick test comparing performance in a dedicated SD slot versus a USB adapter. USB read rate is about 20% of the dedicated SD slot and write rate is about 22%. (Realized I don't have a portable USB3 adapter - time to go shopping.reader is 2.0, shouldn't be that slow though
![Smile :) :)](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png)
With SD adapter in SD slot.
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CrystalDiskMark 3.0.3 x64 (C) 2007-2013 hiyohiyo
Crystal Dew World : http://crystalmark.info/
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* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 91.936 MB/s
Sequential Write : 78.840 MB/s
In SG USB adapter in USB3 port
Sequential Read : 17.888 MB/s
Sequential Write : 17.967 MB/s
In SG USB adapter in USB2 port
Sequential Read : 17.867 MB/s
Sequential Write : 17.916 MB/s
Edit: Same mSD card, different computer, USB3 adapter in USB3 port - about the same speeds as using a native SD slot
Sequential Read : 90.637 MB/s
Sequential Write : 76.483 MB/s
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