64GB Transcend SDXC Class 10 & 400x CF Memory Cards

Amazon ran a one-day sale on these cards a few days ago, so I picked a few up.  I like having a number of cards to choose from when going into a wedding or event, especially when those shoots happen over consecutive days.  It’s a good idea to hang on to your unformatted memory cards until you’ve sorted through the images sufficiently to know that everything downloaded properly.  Having additional cards allows you to put off overwriting an event even longer.

I chose to get two of the Transcend 400x 64GB CF cards, and two of the Transcend 64GB Class 10 SDXC cards.  I use one CF and one SDXC as a set in my 5d mk III* cameras, and configure it to “record to multiple” so my camera is making backups on the fly.  It is a wedding after all.  No second chances.

So how do these perform?  Pretty good!  For the CF card, CrystalDiskMark reports 135MB/s read, and 72MB/s write.  Compare that to my 400x 64GB Lexar Pro UDMA7 card at 116MB/s read, 73MB/s write.

As expected, the Class 10 SDXC cards were much slower.  CrystalDiskMark reported 23.4MB/s read, and 17.7MB/s write.  Compare that to a Sandisk 64GB SDXC UHS-I 30MB/s card, which clocked 40.7MB/s read, 14.1MB/s write.

For the most detailed info, check the bottom of the article.  Here’s an easy-to-read chart.

All tests performed on Win8 Pro x64, USB3.  CF cards were tested with a PixelFlash USB3 card reader.  SDXC cards were tested with a Transcend TS-RDF8K.

*The Canon 5d mk III doesn’t support the UHS-i spec, so while these cards function just fine in the camera, they provide no performance benefit.  Yes, it makes the camera slow.  No, there’s nothing you can do about it.  If you like conspiracy theories, consider that Canon may have intentionally nerfed the 5d mk III so that you’d have another reason to upgrade to the 1D-x.  Check out my article for more details on the performance impact of writing files to the SD card in the 5d mk III.

 

 

If you like seeing the dirty details, continue reading.

CF Cards

Transcend 400x 64GB CF
———————————————————————–
CrystalDiskMark 3.0.2 x64 (C) 2007-2012 hiyohiyo
Crystal Dew World : http://crystalmark.info/
———————————————————————–
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 135.967 MB/s
Sequential Write : 72.256 MB/s
Random Read 512KB : 130.312 MB/s
Random Write 512KB : 20.882 MB/s
Random Read 4KB (QD=1) : 8.296 MB/s [ 2025.3 IOPS]
Random Write 4KB (QD=1) : 1.195 MB/s [ 291.7 IOPS]
Random Read 4KB (QD=32) : 9.874 MB/s [ 2410.7 IOPS]
Random Write 4KB (QD=32) : 1.315 MB/s [ 321.1 IOPS]

Test : 1000 MB [L: 0.0% (0.0/59.6 GB)] (x5)
Date : 2012/11/19 17:14:59
OS : Windows 8 [6.2 Build 9200] (x64)

 

Lexar Pro 400x 64GB UDMA7 CF
———————————————————————–
CrystalDiskMark 3.0.2 x64 (C) 2007-2012 hiyohiyo
Crystal Dew World : http://crystalmark.info/
———————————————————————–
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 116.729 MB/s
Sequential Write : 73.921 MB/s
Random Read 512KB : 112.638 MB/s
Random Write 512KB : 1.421 MB/s
Random Read 4KB (QD=1) : 9.622 MB/s [ 2349.1 IOPS]
Random Write 4KB (QD=1) : 0.010 MB/s [ 2.4 IOPS]
Random Read 4KB (QD=32) : 10.711 MB/s [ 2615.0 IOPS]
Random Write 4KB (QD=32) : 0.011 MB/s [ 2.7 IOPS]

Test : 1000 MB [L: 0.0% (0.0/59.6 GB)] (x5)
Date : 2012/11/19 18:47:12
OS : Windows 8 [6.2 Build 9200] (x64)

 

SanDisk Extreme 60MB/s 64GB
———————————————————————–
CrystalDiskMark 3.0.2 x64 (C) 2007-2012 hiyohiyo
Crystal Dew World : http://crystalmark.info/
———————————————————————–
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 78.645 MB/s
Sequential Write : 50.386 MB/s
Random Read 512KB : 78.604 MB/s
Random Write 512KB : 2.347 MB/s
Random Read 4KB (QD=1) : 5.035 MB/s [ 1229.4 IOPS]
Random Write 4KB (QD=1) : 1.575 MB/s [ 384.4 IOPS]
Random Read 4KB (QD=32) : 5.721 MB/s [ 1396.8 IOPS]
Random Write 4KB (QD=32) : 0.541 MB/s [ 132.1 IOPS]

Test : 1000 MB [L: 0.0% (0.0/59.6 GB)] (x5)
Date : 2012/11/19 21:55:27
OS : Windows 8 [6.2 Build 9200] (x64)

 

SDXC Cards

Patriot LX SDXC
———————————————————————–
CrystalDiskMark 3.0.2 x64 (C) 2007-2012 hiyohiyo
Crystal Dew World : http://crystalmark.info/
———————————————————————–
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 38.894 MB/s
Sequential Write : 20.136 MB/s
Random Read 512KB : 33.528 MB/s
Random Write 512KB : 0.972 MB/s
Random Read 4KB (QD=1) : 1.735 MB/s [ 423.5 IOPS]
Random Write 4KB (QD=1) : 0.373 MB/s [ 91.0 IOPS]
Random Read 4KB (QD=32) : 1.757 MB/s [ 429.0 IOPS]
Random Write 4KB (QD=32) : 0.118 MB/s [ 28.8 IOPS]

Test : 1000 MB [I: 0.0% (0.0/59.7 GB)] (x5)
Date : 2012/11/19 18:28:49
OS : Windows 8 [6.2 Build 9200] (x64)

 

Transcend Class 10 SDXC 64GB
———————————————————————–
CrystalDiskMark 3.0.2 x64 (C) 2007-2012 hiyohiyo
Crystal Dew World : http://crystalmark.info/
———————————————————————–
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 23.425 MB/s
Sequential Write : 17.785 MB/s
Random Read 512KB : 22.450 MB/s
Random Write 512KB : 5.059 MB/s
Random Read 4KB (QD=1) : 3.781 MB/s [ 923.2 IOPS]
Random Write 4KB (QD=1) : 0.825 MB/s [ 201.4 IOPS]
Random Read 4KB (QD=32) : 3.758 MB/s [ 917.4 IOPS]
Random Write 4KB (QD=32) : 0.877 MB/s [ 214.0 IOPS]

Test : 1000 MB [I: 0.0% (0.0/59.5 GB)] (x5)
Date : 2012/11/19 19:24:12
OS : Windows 8 [6.2 Build 9200] (x64)

 

SanDisk Ultra 30MB/s SDXC
———————————————————————–
CrystalDiskMark 3.0.2 x64 (C) 2007-2012 hiyohiyo
Crystal Dew World : http://crystalmark.info/
———————————————————————–
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 40.685 MB/s
Sequential Write : 14.183 MB/s
Random Read 512KB : 38.390 MB/s
Random Write 512KB : 1.040 MB/s
Random Read 4KB (QD=1) : 4.422 MB/s [ 1079.5 IOPS]
Random Write 4KB (QD=1) : 2.074 MB/s [ 506.2 IOPS]
Random Read 4KB (QD=32) : 2.811 MB/s [ 686.3 IOPS]
Random Write 4KB (QD=32) : 2.020 MB/s [ 493.1 IOPS]

Test : 1000 MB [I: 25.1% (14.9/59.4 GB)] (x5)
Date : 2012/11/19 20:38:01
OS : Windows 8 [6.2 Build 9200] (x64)

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