Wizzard wrote:It is known that many microSDHC cards in comparison may have almost equal to relatively slower or faster data transfer. A test of all SDHC card would seem practical ,as in to give a extended view of which brand would be most required for NAND installation. This is a ratherly costly procedure to endure so it is to be remind of the fact that some may have a quick data access ,but as for transfer a very low byte rate.
With a advice to view the market benchmark on brands ,it should be a more practical way for choosing the preferred card.
Out of experience ; I use a 32GB Sandisk Mobile microSDHC card with a 95.00 mb/s data transfer capacity ,with a NAND and DATAonEXT4 installation and has a slightly slow access but never any freeze points.
Advice:
ADATA Premier Pro 32GB data access = 94.90 mb/s.
SanDisk Extreme Pro 633x 32G microSDHC data access = 95.10 mb/s.
Silicon Power 32GB data access = 95.20 mb/s.
Kingston Ultimate 32GB data access = 96.00 mb/s.
Toshiba Exceria Type2 32GB data access = 96.20 mb/s.
I don't think that the HD2 is capable to take advantage of such fast cards because the bandwith of its controller isn't high enough. And also I had bad experiences with SanDisk UHS1 cards. They caused runtime failures and random freezes on my device.
Wizzard wrote:'Note'All cards are in the range of $100,00 !
Yes, I know the prices for such fast cards. I use 64GB SanDisk ExtremePro SDHC cards as backup cards in two of my cameras. But unfortunately CF Cards are even more expensive.
Wizzard wrote:In comparison to the 32GB it is common that the 64 will run slower ,so having a 64GB card does not really speed up your system but gives you more data space. For the record......the new generation SDHC
Ok, I think you are right. Some time time ago I saw a speed comparision between different cards and the 64GB cards were always slower then the 32GB cards of the same brand.
Wizzard wrote:UHS type 2 cards are making the market ,like the Toshiba UHS II which has a access speed of 240mb/s. Nevertheless it is possible that old smartphones may not be able to use this data transfer speed due to hardware incompatibility.
It's a known fact that UHS1 cards often cause trouble with the HD2. At least with NativeSD installations. So I don't wanna even think about using UHS2 cards with my device. And I also think it doesn't make sense to use a card that is more expensive than the HD2 itself.
Wizzard wrote:Hope this information comes in handy and works for you. Dont forget to share your findings with the forum..good luck.
wizzard
THX a lot for your help. I decided to continue using my old 32GB card. It's fast, cheap and reliable. I should buy the same card again just for the case that my old one get's broken in the future.
Just for the records: It's a Transcend Extreme-Speed Class 10 microSDHC 32GB card for less than 20€.
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root and flash andriod onto it. I was able to do this because of the experience and generousity of developers on sites like this. I sincerely thank all of you. I especially want to thank Tytung for this ROM I think it is great to be running an up to date rom on this phone. I have used the ROM since v4.5 and love it. Thank you, sir.
