SanDisk Flash 8 GB SDHC Flash Memory Card SDSDXP1-008G Black Review

Average Reviews:

(More customer reviews)I received this card as a gift after asking a friend to obtain one for me. I had seen the reviews for the SanDisk 8GB Extreme SDHC Class 10 High Performance Memory Card (SDSDX3-008G-P31) and wanted to be able to shoot at glorious speeds without having to worry about my card slowing down. My previous card is a Transcend 16G GB Class 6.
This card is indeed incredibly fast. I'm using it on a Nikon D90.
When shooting in .jpeg, the ISO setting affects how fast I can shoot before the buffer fills.
I've listed a couple testing shots below. All these shots were using Active D-Lighting. Slow down means that the card reduces its frame rate since the buffer cannot take anymore photos until it writes it to the card.
*At ISO 200 jpeg fine, The buffer NEVER fills up. It starts at 13, goes down to 10, then NEVER goes down below 10. Once I hit the 100 shot limit, I can immediately press the shutter again and start shooting another set of 100 without the buffer STILL never going below 10.
*At ISO 400 jpeg fine, I can shoot 45 photos at the full 4.5 fps before the buffer fills up and starts to slow down.
*At ISO 800 jpeg fine, roughly 25 shots before the buffer fills and slows down.
*At ISO 1600 jpeg fine, roughly 6 shots before the buffer fills and slows down.
*At ISO 200 Raw, I get roughly 10 shots before the buffer fills and slows down.
*At ISO 400 Raw, same as above, roughly 10 shots before buffer fills.
*At ISO 800 and 1600 Raw, 5 shots and the buffer fills.
For those who like numbers and file sizes:
*Jpeg files at 200 and 400 come out anywhere from 3.5 to 6 MB.
*At 800 and 1600 they start anywhere from 5-7 MB.
*Raws come out anywhere from 8.5-12 at all ISO settings.
Assuming file sizes, the card most likely writes a minimum of at least 20 MB. No matter what file type I shoot, after I shoot continuous, there is about 1 second lag before it completes all the photos in the buffer once I stop firing it.
Using my laptop's reader and CrystalDiskMark, I get an odd 21 MB Read and 21 MB write. I'm assuming I hit the limit of read/write on my laptop SD card reader, and since I don't have an external reader I can't really upload significant enough data for those who prefer benchmarks.
It should be noted that ISO will affect how fast the camera writes to the file. Since I'm assuming the camera has to process the extra data from the higher ISO to compensate along with the high ISO noise reduction ON, I have no doubt that this card is faster than the camera's processing. The card probably sits there wondering where the data from the buffer is since it's that fast.
All in all, I recommend this card highly. This card operates at least at the same speed if not faster than the SanDisk 8GB Extreme SDHC Class 10 High Performance Memory Card (SDSDX3-008G-P31), is 6 dollars cheaper (41 vs 47) and definitely shows a very good improvement. Sandisk has definitely shown me that a faster card makes a difference.

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