Database Develop

Is class 4 or 6 enough for max read/write on HD2

I am looking to buy a new microSDHC but I was wondering if it is worth it to get a class 6. Is HD2 capable of maximum reading/writing on a class 6? or class 4 is enough?

noone knows the answer for that one?

I guess you'll need to find out the specs of the cardreader of the HD2. You need to find out what the read/write speeds is and then compare it with the microSD to find out which class is the best to use...

Oh yes they do
http://forum.xda-developers.com/showthread.php?t=756781&highlight=card+speed+test

get the fastest class you can - is there class 10 now?

There is, even in Poland . But what capacity are you looking for :relic? If for 4 Gb or 8 you won't need class 10 or even 8, 6 is enough. Maybe for 16 GB card class 10 is acceptable, but the SD will cost you really a lot. I have class 4 16 GB kingston in my HD 2 and it works perfectly

I've been using the stock class sd card for running android. I have been happy with the performance. Don't expect miracles with higher class cards. I say put your money toward a higher capacity card.

And remember the higher class cards consume greater battery power.
Sent from my HTC Desire using XDA App

Yea try to go for higher capacity, I just got a 32g says 6 speed on it, and does seem to transfer quicker than the 2 speed i had, but im not convinced. a two speed will still let you watch all your films and music no probs. just slightly longer to put the files on it.

Johnwalk go in my thread listed on the same page and post the spec there.

I just bought a kingston 32gb class 6 micro sdhc but when ever i put it in my hd2 it just freezes up and as soon as I remove the card it works fine again.At first i though that it was a fake so I:
1)performed multiple tests,
2)reformated a 1000 times,
3)even putting 20gb of data just to make sure.
Turns out that it is authentic and it works perfectly on my girlfriend's htc BalckStone it also worked when I installed NAND (which i later removed due to insufficient memory).Ive been searching for days, I think its a windows mobile issue, any tips??

What microSD card is everyone using for booting 2.2/3.0?

I've been looking around Tiger Direct and NewEgg in search of a class 10 card to use but the only ones I find have warnings from previous buyers saying they don't achieve the rated speeds. I'm using a class 4 card right now with the 3.0 image and it's super slow to load. Can any of you link me the cards that you're using?
Thanks in advance

themirthfulswami said:
I've been looking around Tiger Direct and NewEgg in search of a class 10 card to use but the only ones I find have warnings from previous buyers saying they don't achieve the rated speeds. I'm using a class 4 card right now with the 3.0 image and it's super slow to load. Can any of you link me the cards that you're using?
Thanks in advance
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Click to collapse
I am using a Transcend class 6 8GB from Newegg. Very fast...

Ditto. Transcend Class 6 8gb. work wonderfully (remember 16gb cards do nto work with froyo).

another vote for Transcend Class 6 8GB. And, stay away from Kingston Class4.

I'm using a Sandisk 16 gig Class 2 (that came with my Storm2) for Froyo.
I have a Sandisk 8gig Class 4 (purchased at Best Buy) for Honeycomb.
They perform great.
Beware of the CLASS rating.. it doesn't always tell the truth.
I have "generic" no-name made in japan Class 4 cards (an 8gig came with my Devour, and a 16 gig came with my X) that do not perform anywhere close to the two sandisks!!

Newegg, Patriot class 10 16GB.

Transcend here too. Class 6 4GB and 8GB cards.

Another happy Transcend 8GB Class 6 user here. Works well for Nookie Froyo and Honeycomb.

Thanks so much for all the feedback, guys I just ordered that 8GB Transcend Class 6 card since that seemed to get the most consensus here. Can't wait to try out Honeycomb with it!

im curious to know which one you bought and how well it works. let me know.

I bought the only Transcend 8gb Class 6 card I could find on the site, so I assume it's the right one. I'll post back here next week after I've received it and tested it out.
Hoping it's better than the Patriot Class 4 card I'm using now.. that thing is unbearable.

bonobomidwest said:
Ditto. (remember 16gb cards do nto work with froyo).
Click to expand...
Click to collapse
Is this true? I have a sandisk 16 gig I was going to use.
Sent from my Droid using XDA App

I'm using a Wintec Filemate 16 gb class 10 in my droid x, running liberty rom on Froyo. No problems at all, and one of my apps measures 3.6mb/s write speed and 4.9mb/s read speed.. Don't know if that's sufficient or not but I haven't noticed any lag with it.
Sent from my DROIDX using XDA App

I'm using a Adata 8gb Class 6 card and enjoying Honeycomb.

That Honeycomb v4 build is pretty great, though I'm still having major issues with getting the Market to work. Other than that one quibble, its running fantastic - zippity too.

Transcend 8g from amazon class 6. No issues.
Tried Sandisk 4g class 4 very laggy.

Fry's has a Patriot 16GB Class 10 for $45 and it's in stock in the store near me (Austin, TX). Any comments on that? I seem to be seeing a mixed message on whether Froyo and/or Honeycomb will work with a 16GB card, though. I currently have a 4GB card that I'm using to hold a few things for my rooted stock B&N 1.1 firmware, but I'm interested in trying out Honeycomb and don't want to disturb that one.

SCWells72 said:
Fry's has a Patriot 16GB Class 10 for $45 and it's in stock in the store near me (Austin, TX). Any comments on that? I seem to be seeing a mixed message on whether Froyo and/or Honeycomb will work with a 16GB card, though. I currently have a 4GB card that I'm using to hold a few things for my rooted stock B&N 1.1 firmware, but I'm interested in trying out Honeycomb and don't want to disturb that one.
Click to expand...
Click to collapse
I tried the Patriot 16gb C4 and it was slow. After 2 other 16gb would not work, I didn't want to return to Fry's and get another. The Patriot 8gb class 10 works like a charm.

bonobomidwest said:
(remember 16gb cards do nto work with froyo).
Click to expand...
Click to collapse
Huh ? I never heard of this before. Is this true ?

purchased the 8Gb transcen because of this thread

[Q] What class sdcard to buy?

Hi guys,
I'm getting a new sdcard for my phone, but I'm not exactly sure what class should I get. Is class 4 enough or should I get at least class 6?
I'm worried about full HD videos recording.
Any tips appreciated

Im going to get 16gb class 6
Sent from my LG-P990 using XDA App

Equipped with Team MicroSDHC 16GB Class 6.

I've got a 16GB class 4 and am happy with it.
In my opinion, the prices of cards class 6+ are too high for the extra transfer speed they offer.

tnx for the tips

16gig class 6 = 20$ off ebay.
And yes its a real class 6 as I have tested its speed
sent from LG OPTIMUS LTE using Tapatalk

I use the microSD 8 GB I had in my Nokia 5800 and I do not know the class membership, but I like it here because we have spent nothing

I have 64GB class 6 i believe.
Sent from my SAMSUNG-SGH-I717 using xda premium

I have 32GB Samsung class 10 and I'm very satisfied with it, only 35 Euros

I'm using Lexar 16gb class 6, worth the price, the performance is near a class 10 microsd.

bree1 said:
I use the microSD 8 GB I had in my Nokia 5800 and I do not know the class membership, but I like it here because we have spent nothing
Click to expand...
Click to collapse
Thats a class 2 card
Sent from my Optimus 2X using XDA
Nevr forget the thanX button

In my sensation, on a class 4 8GB card, i got 13 MBps full Hd recording and on same card but LG 2X, i get 18~19 Mbps fullHd video
I don't think class matters that much....
By the way i use internal SD storage for camera and later transfer to extrnal SD
Sent from my Optimus 2X using XDA
Nevr forget the thanX button

I've read that class 10 is actually slower at reading small files than class 4
You can see a lot of data (real world data) here: https://docs.google.com/spreadsheet/ccc?key=0AjPE3ZAD2eVudE9vZmQ3aHlfTkFvU2J4ZUplRDJQTEE#gid=0
taken from this thread
So if you're going boot from SD for example I would get a class 4
If you are planning on transferring a lot of movies/music/photo's or recording video's in high resolution onto the SD, I would recommend a class 10
But best of all: do some research and pick a card that excels in both, e.g.
SanDisk Mobile Ultra 32GB Micro SDHC Flash Card Model SDSDQY-032G-A11A
Samsung Class 10 MB-MSBGA/EU

Zorkman said:
I've read that class 10 is actually slower at reading small files than class 4
You can see a lot of data (real world data) here: https://docs.google.com/spreadsheet/ccc?key=0AjPE3ZAD2eVudE9vZmQ3aHlfTkFvU2J4ZUplRDJQTEE#gid=0
taken from this thread
So if you're going boot from SD for example I would get a class 4
If you are planning on transferring a lot of movies/music/photo's or recording video's in high resolution onto the SD, I would recommend a class 10
But best of all: do some research and pick a card that excels in both, e.g.
SanDisk Mobile Ultra 32GB Micro SDHC Flash Card Model SDSDQY-032G-A11A
Samsung Class 10 MB-MSBGA/EU
Click to expand...
Click to collapse
I have one Samsung 32gb class 10 (MB-MSBGA) and i'm quite satisfied with it.
It costed 32€ (1€/Gb is really a nice price ) and it's fast
Antutu Bench 2.7 gives me writes of 17-18MB/s and reads of around 20-22 MB/s (these scores with only 4gb free in the sd card (full of music and hd vids))

I use Kingston 8G class 4.
In regular use it has enough speed.

I have a ridata 32GB class10.
Really happy with it too.
My rule is to get class 6 and up. But that's me because I tend to play around with my phone and may come a time where I need to boot from it. As of now, the class 10 helps with loading apps (I hope). Since I have CM7 and it's using the external card as the default sd mount.

team 16gb class 10 forever

i think class 6 is good and the performance is good too. I never heard any of my friends got problem with it

I'm using VERICO 16GB class 10, very good performance!

I had to decide between Class 6 and Class 10 for my P990, but since the Class 10 just had a small additional charge I picked this one.
Samsung Class 10 for 18-19€ (Germany)

Which SD Cards are the best ?

I couldn't find a real answer to this anywhere, but I plan on installing CM7 to an SD Card - and boot/run from the card.
Which class of SD card should I be shooting for - and why? Are there any certain brands that work well/don't work well? The same for sizes - is 16GB going to be faster than 32GB ?
Thanks. I'm shooting for a 16 GB internal which should be more than enough space.

Sandisk class 2 or 4
Sent from my LG Optimus V using Tapatalk

Search this forum and you will find that the Sandisk class 4 disks are great. The best part is they are available at most retail stores, if your impatient. I've been using a 16gb card for a while and it runs stable and smooth.

+1 vote for Sandisk

SanDisk class 4.
Sent from my NookColor using xda premium

SanDisk class 4, 16GB
see the other topics here about sd cards, there are some good known resellers on Amazon who have real SanDisk cards, not the fakes that you can finds for cheaper some places online.

Are there known issues with other brands or faster (eg; class 6 / 10) SD cards on the NC, or is it just when booting the likes of CM7 from them?

SamboNZ said:
Are there known issues with other brands or faster (eg; class 6 / 10) SD cards on the NC, or is it just when booting the likes of CM7 from them?
Click to expand...
Click to collapse
Some other cards do have known issues or possibly don't live up to their speed class rating. You might get lucky and get a decent one out of a bunch, but its very hit or miss. Other cards have also been known to die after using them for a bit.
If you're looking for something that is reliable and is consistent, then stick with SanDisk class 4.

SamboNZ said:
Are there known issues with other brands or faster (eg; class 6 / 10) SD cards on the NC, or is it just when booting the likes of CM7 from them?
Click to expand...
Click to collapse
I tried A-data 4GB and 8GB class 6, they both run great, tried a generic 16GB class 4, horrible slow. Haven't try any SanDisk yet.

sandisk 8gb class 4 seems to work ok for me
if i went anything larger than 8gb i would want above class 4 speeds i think

Read first post here:
http://forum.xda-developers.com/showthread.php?t=1005633
sandisk CL4, 8GB and 16GB seem to be the best bet. faster cards appear to be optimized for speed and large file transfers, but the CL4 and slower cards have better small file read/write speeds.
runnnig CM7 off the card, you want the better small file read/write speeds from the CL4 and slower cards.
~mike

Anyone tested any Sandisk Class 6 cards?

Amazon Basics class 10 sdcards work pretty good for me...but i have never run a rom from the actually sd card.
But for $28 (16gb) it actually is class 10-i have all my music and videos and they all perform well. I used to get force closes on my music player back when i had music on internal memory but now that its on external sd i have no force closes
In conclusion the 16gb class 10 amazon basics for $28 has improved my phone satisfaction
Sent from my SAMSUNG-SGH-I997 using XDA App

Found one result for a Sandisk Class 6:
http://forum.xda-developers.com/showpost.php?p=21268438&postcount=317
Seems to perform well!

This does not hold if you are running off the card. I have a 16GB class 6 Kingston and it runs terribly slow. My class 4 sandisk 16GB runs great.
Sent from my NookColor using Tapatalk

prettedda said:
This does not hold if you are running off the card. I have a 16GB class 6 Kingston and it runs terribly slow. My class 4 sandisk 16GB runs great.
Sent from my NookColor using Tapatalk
Click to expand...
Click to collapse
+1
Before I committed to emmc my lower class cards ran faster.
Sent from my GT-P7510 using one finger.

What monkeymike said.
Pretty much if you get anything but a class 2 or 4 Sandisk(i'd say class 4 for best of both worlds), you run a risk of an unstable system. The benchmark tests seem to put them many orders of magnitude above the higher class cards of other brands.
Plus they seem to be on special just about anywhere i've asked for them. Try radioshack if you are in the US.

I think you'll find that extensive benchmarking of a heap of cards has shown that the ones which are slow to boot are the same ones which have very low 4k random write speeds (as per monkeymike's post reference). The Sandisk 16GB Class 6 cards appear to have decent speeds for 4k random writes, ergo they will be fine to boot from. Other class 6 cards don't perform nearly as well as the Sandisk ones.

I've seen numerous benchmarks around the web showing that the Sandisk class 4's consistently match or beat the class 10's from other manufacturers and I've had great results with them in both my NC and my phones.
That said, its not going to run as well from an SD card (any sd card) as it will when properly installed as the main OS. I know this from experience. I was running CM7 from a generic class 2 for a while and it sucked. Then I got a Sandisk 16gb class 4 and that made a huge difference in usability. But over the weekend I finally took the plunge and actually installed CM7 directly on the NC-and that is a huge improvement over even the best SD card. Still, the Sandisk class 4 is a good way to test the waters.

Help me to choose a Memory card

Hiya guys,
I have been looking forward to buy a memory card of 32 GB. I have found out that there are various memory cards available of different classes. The least one is Class 4 which is the cheapest and Class 10 is the most expensive. I am not sure about the difference between the two.
I would like to know which Class memory card should be fine for the Galaxy Note ? Class 4 will work or I should choose Class 10 memory card ?
Please help me with this...

that would be the read speed.. the higher the better..
most say class 4 is plenty fast for just about everything..some say class 10 would work better if you're trying to watch say a very large video from your sdcard..
personally i think a class 4 or 6 would be enough.

I'm Using Sandisk 32GB Class 4 Memory Card.I Think It Is Best & Enough For My Galaxy Note.

Thanks guys...
I have checked the reviews on Amazon and gone through some of the threads available on this forum. I'm sure Class 4 would work for my requirements. I will choose one..
Thanks again...

CarlNote said:
I have checked the reviews on Amazon and gone through some of the threads available on this forum. I'm sure Class 4 would work for my requirements. I will choose one..
Click to expand...
Click to collapse
I'd recommend the SanDisk MobileMate series, think they're class 4 or 6, good value and excellent stability, as well as speed. Worth a look.
Sent from my GT-N7000 using xda premium

I use class 10 card because they have a better read/write time as an class 4 Card.

Currently using SanDisk 32GB class 4.
The speed is good enough for me.

Lexar 32 GB Class 10. One of the cheapest and fastest.

viper5 said:
I use class 10 card because they have a better read/write time as an class 4 Card.
Click to expand...
Click to collapse
It's worth reading up on transfer speeds versus read/writes for small files versus larger files. If you're only reading/writing large files then class 10s are what you're looking for.
If you're needing it for installing and rilunning apps or other collections of small files then class 4s will have better performance.
I've also read up that samsung are about to release some new standards with much higher data transfer rates, I'm not sure the note will make full use of them, but they'll be quick transers:
http://www.expertreviews.co.uk/memo...-goes-high-speed-with-new-uhs-1-microsd-cards
Sent from my GT-N7000 using xda premium

Mine is a Sandisk 32 Gb Class 2, I'm one of the suckers who bought the first time a 32Gb MicroSD got released and payed double the current price..
But it is good enough, I can play large movies up to 3+Gb
**while you're at it, you might want to consider buying 64Gb MicroSDXC instead. http://forum.xda-developers.com/showthread.php?t=1330784

For listening to music or viewing films, classes 4 or 6 are ok (even class 2 from a good manufacturer like SanDisk).
It's when copying large music libraries or films that you appreciate having a class 10 card. And if you intend to use your GN for viewing lots of films, then you'll have to carry copy operations quite often...
Sent from my GT-N7000 using xda premium