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SDHC Memory Card Tests with my Canon XSi

August 20, 2008

I ran some tests on the SDHC cards I’m currently using with my Canon XSi/450D.  I tested the number of simultaneous RAW shots that each card was able to handle as well as the number of shots I could fire in 10secs.  The RAW burst turned out to be 6 for all cards, which tells me that’s the limit of the XSi’s internal buffer.  More cards are tested on Rob Galbraith’s page.  

Based on Rob’s page, I’ll be looking for one of these cards for best performance: SanDisk Extreme III 8GB 30MB/s Edition, PNY Optima Pro 8GB, SanDisk Extreme III 8GB, Lexar Professional 8GB, ATP Pro Max, or Kingston Ultimate 120x.

Update 8/29/08: PNY Optima Pro 8GB results posted.  I ordered the PNY Optima Pro 8GB Class 6 card, and am disappointed in the results as it came in tied for last among my other cards.  Perhaps the 2GB card Rob tested is better performing.  I’ll have to try a SanDisk Extreme III 8GB next.

Update 9/16/08: AData Turbo 8GB Class 6 results posted.  This has been the worst card of the bunch.  It struggles to complete the 6 RAW shots and pulls off only 8-10 saves in the 10sec test period.

Update 9/23/08: SanDisk Extreme III 8GB Class 6 30MB/s Edition results posted.  You can’t beat the SanDisk.  It performed as its 4GB brother did – it wanted to get a 7th RAW burst frame, but just couldn’t make it.  I’m definitely at the limits of the camera — a faster writing camera could take more advantage of the speed this card allows.

SDHC Card RAW Burst Shots in 10sec
SanDisk Extreme III 8GB 30MB/s Edition 6 16.5-17
SanDisk Extreme III 4GB Class 6 6 17
SanDisk Ultra II 2GB Class 4 6 13
PNY Optima Pro 8GB Class 6 6 12
Patriot 4GB Class 6 6 12
Patriot 8GB Class 6 6 12
PNY Optima Pro 8GB Class 6 6 12
AData SDHC 8GB Class 6 5.5 9

Final Thoughts

Fry’s Feedback: The Patriot and AData cards are popular @ Fry’s because of their cost, but don’t provide the best performance.

Class Rankings: Don’t always tell the whole story as there’s wide variation in Class 6 speeds.  A good Class 4 card is shown to outperform the cheap Class 6 cards.

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8 comments

  1. […] Codepoet5150’s Weblog Just another WordPress.com weblog « Macworld: SanDisk offers fastest SDHC cards to date SDHC Card Test Updated with PNY Optima Pro 8GB August 29, 2008 I received one of these cards and put it in the Canon XSi for test – results updated on the testing page. […]


  2. […] Codepoet5150’s Weblog Just another WordPress.com weblog « Visual Studio 2008 SP1 Setup Failure on 64-bit Vista Solved SDHC Card Test Updated with AData Turbo 8GB September 16, 2008 I purchased a cheap AData 8GB Class 6 card from Fry’s and put it in the Canon XSi for test – results updated on the testing page. […]


  3. […] Codepoet5150’s Weblog Gadgets, photography, coding, music « Canon fires back SDHC Memory Card Tests Updated with SanDisk Extreme III 8GB 30MB/s Edition September 23, 2008 It’s another winner from SanDisk.  The SanDisk Extreme III 8GB 30MB/s Edition provides great performance at a high RAM count – see the results on the main post. […]


  4. […] The XSi will take any size SDHC card. Sandisk Extreme III is a good card. The speed class (6 is the fastest) is supposed to indicate how fast you can write to the card, but this test found that some cheap class 6 cards were outperformed by better quality class 4s : https://codepoet5150.wordpress.com/2008/08/20/sdhc-memory-card-tests-with-my-canon-xsi/ […]


  5. have you tried the XSi with Transcend class 6 SDHC??
    I don’t know if I’ll be shooting 3.5fps raw mode all the time…but if you know anything about the card or have results please email and let me know thnaks…


  6. […] […]


  7. […] The busiest day of the year was January 5th with 128 views. The most popular post that day was SDHC Memory Card Tests with my Canon XSi. […]


  8. Your method of telling everything in this piece of writing is really nice, every one be
    able to easily be aware of it, Thanks a lot.



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