ADATA XPG SDXC UHS-1 U3 Card Review (64GB)


With our real world test, we will be seeing how many images my Canon 6D can take in a burst as well as how long it will take for the buffer to offload to the SD card. The Canon 6D image buffer is rated to handle up to 14 shots in a single burst. This test will show us the real speeds of the card in practice rather than just synthetic benchmarks on a computer; anything over the 14 image buffer will show us the extra performance a high end SD card will offer.

ADATA XPG 64GB SDXC Comparison

In addition to the ADATA XPG 64GB, we have a 64GB Kingston Ultimate, I have a 32GB Samsung Pro and a 16GB SanDisk Extreme for the testing comparison. For standardization and comparison, the camera settings will be shooting at ISO 100, 1/160th of a second, aperture f/4.

ADATA XPG 64GB Real World

The U3 rating on the ADATA XPG is definitely not just for marketing. As you can see above, the ADATA XPG was able to surpass all the other cards in the burst speed test. It allowed the Canon 6D to capture four 24 shutter bursts in a row during testing. That is three more images per burst than the Kingston Ultimate UHS-I U1 card we recently reviewed.

When shooting sports, every second counts. You do not want to be shooting a play and have to deal with waiting for the buffer to empty so you can take more images. Otherwise, you will end up missing most of the action and miss valuable moments you could have been capturing. Being able to shoot an additional ten images on top of the buffer with this card is a huge plus!


With the increase of Ultra HD video cameras and stills cameras recording higher MP images, newer memory cards need to keep up. If you are on the lookout for a SDXC card for your new 4k video camcorder make sure you take a look at UHS-I U3 cards. With the higher sustained speeds of at least 30MB/s, video will be recorded seamlessly and the higher read speeds will allow your media workflow will be more efficient.

ADATA XPG 64GB Featured

Overall, ADATA’s XPG SDXC UHS-I U3 64GB card has been impressive. The only drawbacks I see are the price, it is retailing for $129.99 or about $2 per GB, and the capacity only being available at 64GB. Benchmarking to a high of 91MB/s read and 80.5MB/s write it is the fastest SDXC card we have reviewed to date. Not only that, but in the real world speed test it was able to surpass all our other cards in comparison. With such high transfer speeds and a lifetime warranty, this is a great card to get for anyone who needs the speed and capacity for capturing 4k video or high bursts of full resolution RAW images.

Check out the ADATA’s XPG SDXC UHS-I U3 card on Amazon.

Review Overview


Pure Speed

Benchmarking at 91MB/s read and 80.5MB/s write, ADATA’s XPG SDXC UHS-I U3 64GB card has delivered some of the best SDXC card speeds we have seen to date. With its speed and lifetime warranty, it is a top contender for using with latest 4K video cameras.

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