Customer Review

23 of 25 people found the following review helpful
3.0 out of 5 stars Is it really worth it?, 29 May 2009
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This review is from: SanDisk SDSDX-004G-X46 4 GB Extreme 20 MB/s Class 10 HD Video SDHC Memory Card (Personal Computers)
I tested the speed of this card vs a much cheaper Kingston 8gb card and after looking at the results you will wonder if it is worth it at the price. Both the tests below are sequential tests with would be typical of the usage of this card in a digital camera.

The first test was done with an Integral Card Reader.

8gb Kingston class 4
Read 16 mb/s
Write 7.2 mb/s

4gb Sandisk Extreme III
Read 16.3 mb/s
Write 13.7 mb/s

The second test was doing using the benchmark function of CHDK on a Canon Powershot SX110 IS.

8gb Kingston class 4
Read 7.3 mb/s
Write 6.1 mb/s

4gb Sandisk Extreme III
Read 9.3 mb/s
Write 7.8 mb/s

Personally I don't think the price premium is worth it but if you need this for professional usage then perhaps it will be.
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Showing 1-2 of 2 posts in this discussion
Initial post: 28 May 2010 19:23:27 BDT
I tested the same two cards you mentioned only i just put it in my nikon DSLR and used a continious burst and I can tell you that the Sandisk is significantly faster when you are doing continious shooting.

In reply to an earlier post on 20 Jan 2012 11:40:59 GMT
Last edited by the author on 20 Jan 2012 11:43:01 GMT
GoonerJim says:
I agree, I originally bought this card for my Lumix compact and it showed no increase in write speed, but now I have a Canon DSLR the speed difference is apparent.
The benefit of this class 6 card is only seen when connecting to a fast camera, especially when HD video shooting.
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