MicroSD Cards

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Which is better a 16gb Class 2 or a 8gb Class 6 just in general do I sacrifice speed for storage of vice versa..

Originally Posted by rawrwill

Which is better a 16gb Class 2 or a 8gb Class 6 just in general do I sacrifice speed for storage of vice versa..

I was in the same boat , after reading through various threads , I
now have a class 2 16gb card on the way

I've got a 8gb cauz i aint store that much video's and mp3 on my phone that i need 16gb

If you use app2sd, or plan to use it, class 6 is a better choice.

Originally Posted by boge

If you use app2sd, or plan to use it, class 6 is a better choice.

Not necessarily! My 16gb Sandisk class 2 card outperforms class 6 minimums.

Regards,

Dave

Originally Posted by foxmeister

Not necessarily! My 16gb Sandisk class 2 card outperforms class 6 minimums.

Regards,

Dave

If it does, then why isn't it a class 6?

Re: MicroSD Cards

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what is a good program to benchmark SD card speeds in our phones?

Originally Posted by harolds

If it does, then why isn't it a class 6?

The classes they are given are the minimum they must be able to do.

If a card maker makes 10 batches of cards and they all turn out to be capable of class 6 speeds however they only have orders for 5 batches of class 6 and 5 batches of class 2, what do you think they'll do? Label half as class 6 and half as class 2.

Originally Posted by harolds

If it does, then why isn't it a class 6?

As has been said - the class of the SD card just guarantees you a minimum speed - in fact, a minimum sequential write speed.

I get the following:

16gb Sandisk Class 2
Sequential Read : 20.050 MB/s
Sequential Write : 7.415 MB/s

8gb Transcend Class 6
Sequential Read : 19.938 MB/s
Sequential Write : 15.020 MB/s

(Tested using CrystalDiskMark 3.0 with both cards in an adaptor directly connected to the PC via USB)

Both cards well exceed the minimum 6MB/s for Class 6, with the Class 6 card coming out as twice as fast as the Class 2.

If you're using a high-res digital camera, you will notice that write speed difference as it will decrease the amount of time it takes to save a picture and thus how quickly you can take the next. However, in general use on a phone you just will not notice this, making the Sandisk Class 2 card a much better buy.

Regards,

Dave