DT MI
Well-Known Member
- Joined
- Oct 10, 2014
- Messages
- 6,755
- Reaction score
- 5,640
- Location
- Michigan
- Country
- United States
- 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
With SD adapter in SD slot.
-----------------------------------------------------------------------
CrystalDiskMark 3.0.3 x64 (C) 2007-2013 hiyohiyo
Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* 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
Last edited: