SD Memory - Don't waste your money

Started Dec 30, 2011 | Discussions thread
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Nightwings
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SD Memory - Don't waste your money
Dec 30, 2011

If any of you shoot HD video with your Nikons .. you may be interested in this.

I recently picked up 32GB Lexar Platinum II Class 10 memory cards ... not for the speed, more for the price. I got them on sale 65% off.

Anyway, curious to see how they would stack up against my 16GB Lexar Multi-use Class 4's - I ran benchmark tests on both.

This would explain why I've never ever run into problems using Class 4 Lexars for HD video recording. Given the huge price difference between Class 4 and Class 10 cards .. you can see where one can save a lot of money and get practically the same performance.

CrystalDiskMark 3.0 (C) 2007-2010 hiyohiyo
LEXAR 32GB PLATINUM II

Sequential Read : 20.892 MB/s
Sequential Write : 17.145 MB/s
Random Read 512KB : 20.139 MB/s
Random Write 512KB : 0.913 MB/s
Random Read 4KB (QD=1) : 4.167 MB/s [ 1017.4 IOPS]
Random Write 4KB (QD=1) : 0.010 MB/s [ 2.4 IOPS]
Random Read 4KB (QD=32) : 4.371 MB/s [ 1067.1 IOPS]
Random Write 4KB (QD=32) : 0.015 MB/s [ 3.8 IOPS]

Test : 100 MB [F: 0.0% (0.0/29.8 GB)] (x1)
Date : 2011/12/29 19:48:18
OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x86)

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CrystalDiskMark 3.0 (C) 2007-2010 hiyohiyo
LEXAR GENERAL USE 16GB

Sequential Read : 20.878 MB/s
Sequential Write : 15.040 MB/s
Random Read 512KB : 20.136 MB/s
Random Write 512KB : 0.908 MB/s
Random Read 4KB (QD=1) : 4.253 MB/s [ 1038.4 IOPS]
Random Write 4KB (QD=1) : 0.010 MB/s [ 2.5 IOPS]
Random Read 4KB (QD=32) : 4.333 MB/s [ 1057.9 IOPS]
Random Write 4KB (QD=32) : 0.015 MB/s [ 3.7 IOPS]

Test : 100 MB [F: 0.0% (0.0/15.4 GB)] (x1)
Date : 2011/12/29 19:42:44
OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x86)

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