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Garbage read/write speed on the HTC Desire
on 21 February 2011
Ive just purchased this card due to all the hype its been given and some of the reviews indicating that you can transfer 10.8gb of data to it in 27m 59s and another guy that mentioned a read speed of 15 MB/s and write speed of 5-6 MB/s.
In reality the speeds are garbage. It took me almost 2 hours to transfer just short of 16gb of mixed size data, ranging from a few kb to a few hundred MB using a high speed memory card reader plugged into a USB 2.0 compatible port...it took the same time as having the card plugged into the phone, acting as a glorified card reader. The card was formatted with a cluster size of 32k and actual formatted size was 14.8gb
With all the benchmarking tools ive used it also gets awful marks when compared to my previous Duracell class 2, 16gb micro sdhc card. The Duracell branded one is an unsung hero. I can get write speeds of 6mb/s and read speeds of 15mb/s with that.
Using the "AnTutu System Review" app it shows a SD Card Write speed of 2.6 to 3.6MB/S and SD Card Read Speed of 8.9 to 9.1 MB/s, with the CPU running at 998mhz. Nothing is reading or writing to the card when im running the tests, its performance is unfortunately garbage. I get even poorer results when im running the CPU slightly underclocked at 844mhz, which isnt exactly slow for a mobile phone ffs. This didnt used to be an issue at all with my Panasonic card. My Panasonic card used to get a result of 13 MB/s read speed and 6 MB/s write speed, not too shabby to say that its only a class 2 card...
Using the "SD Card Speed Test" app (also known as just "Sst") it gets the following results:
Files of 1MB in size - Write Speed - 3MB/s and Reading Speed 8MB/s, measures as a class 2 card.
Files of 2MB in size - Write Speed - 3MB/s and Reading Speed 10MB/s, measures as a class 2 card.
Files of 3MB in size - Write Speed - 2MB/s and Reading Speed 10MB/s, measures as a class 2 card.
Files of 4MB in size - Write Speed - 3MB/s and Reading Speed 9MB/s, measures as a class 2 card.
Files of 5MB in size - Write Speed - 3MB/s and Reading Speed 10MB/s, measures as a class 2 card.
Files of 10MB in size - Write Speed - 2MB/s and Reading Speed 10MB/s, measures as a class 2 card.
So yeah as you can see, the card is complete garbage when it comes to writing data and its not particularly good for reading it either. If you have some apps installed on the phone like i do then its just going to make your phone laaaaaaaaaaaaag. Ive now got the dilema of sticking with this crap or backing up the conents of the card and putting it all back on my more than great class 2 Panasonic card.
Save yourself , have a look for the 16gb class 2 panasonic card or try something else. ont get anything higher than a class 6 card if you have a HTC Desire because the phone cant cope with them and it often ends up going into a boot loop, moaning about "SD Removed".