SDSDQUA-064G-A11A vs. SDSDQUA-064G-U46A. Both are 64GB. Supposedly, A11A is an American version of the card.
There are a two more issues though.
1. Galaxy Note's compatibility with UHS-I speeds. I heard it's not compatible, and Samsung does not list Note as compatible either. So whether you get a class 6 or class 10 card makes no difference in performance.
2. There's a info on ebay about these cards not working on Android phones after upgrade to ICS. Could anyone confirm this for Note.
oort cloud said:
SDSDQUA-064G-A11A vs. SDSDQUA-064G-U46A. Both are 64GB. Supposedly, A11A is an American version of the card.
There are a two more issues though.
1. Galaxy Note's compatibility with UHS-I speeds. I heard it's not compatible, and Samsung does not list Note as compatible either. So whether you get a class 6 or class 10 card makes no difference in performance.
2. There's a info on ebay about these cards not working on Android phones after upgrade to ICS. Could anyone confirm this for Note.
Click to expand...
Click to collapse
64GB Sandisk class 6 working fine on mine no issues?
Sent from my SAMSUNG-SGH-I717 using xda premium
Kant Phase Diz said:
64GB Sandisk class 6 working fine on mine no issues?
Sent from my SAMSUNG-SGH-I717 using xda premium
Click to expand...
Click to collapse
Thanks for the info.
oort cloud said:
Thanks for the info.
Click to expand...
Click to collapse
Np bud just hit the thanks button
Sent from my SAMSUNG-SGH-I717 using xda premium
Kant Phase Diz said:
Np bud just hit the thanks button
Sent from my SAMSUNG-SGH-I717 using xda premium
Click to expand...
Click to collapse
Using a Sandisk 64GB UHS 1 card..never tested speeds, but getting full capacity on UCLF FJ rom so it works good enough for me.
Kant Phase Diz said:
64GB Sandisk class 6 working fine on mine no issues?
Sent from my SAMSUNG-SGH-I717 using xda premium
Click to expand...
Click to collapse
Same. I'm on ICS BTW.
Sent from my SAMSUNG-SGH-I717 using xda premium
oort cloud said:
SDSDQUA-064G-A11A vs. SDSDQUA-064G-U46A. Both are 64GB. Supposedly, A11A is an American version of the card.
There are a two more issues though.
1. Galaxy Note's compatibility with UHS-I speeds. I heard it's not compatible, and Samsung does not list Note as compatible either. So whether you get a class 6 or class 10 card makes no difference in performance.
2. There's a info on ebay about these cards not working on Android phones after upgrade to ICS. Could anyone confirm this for Note.
Click to expand...
Click to collapse
IIRC there's no such thing as UHS compatibility. Is a rating just like Class X. I suppose your throughput limit could be lower than that of the card, but its both unlikely, and it wouldn't be a compatibility issue. It would just be a bottleneck (still, not a bad bottleneck to have). And SD cards are like controlling girlfriends...they stick with you through multiple states, multiple phone numbers, and you practically have to get a restraining order on em to get em gone.
I've never heard of anyone lifetime writing out a nand device before outside of an enterprise load (ssd)..a 6 year old crappy flash drive, yea....but I think that has more to do with quality, and for the most part, higher speeds (above class 10 speeds) = higher quality.
Have a Class 6 working just fine on my GNote running ICS.
I have both these cards; the class 6 and class 10. Class 6 is designated "mobile" on the card while Class 10 does not say it on the card. Either way, both work perfectly on ICS. Just make sure to let the phone format the drive, not your Window's PC. (FYI, Windows will try to format to NTFS which is not recognizable by our phones. Only FAT32 works).
I google and only fail to identify class 6 and 10 microsdxc card. How to differentiate between those two? What i notice from images there got symbol '1' inside the big 'U'.
deliriousbb said:
I have both these cards; the class 6 and class 10. Class 6 is designated "mobile" on the card while Class 10 does not say it on the card. Either way, both work perfectly on ICS. Just make sure to let the phone format the drive, not your Window's PC. (FYI, Windows will try to format to NTFS which is not recognizable by our phones. Only FAT32 works).
Click to expand...
Click to collapse
Have you done any benchmarking on the random write speeds of these? I am curious to know the difference between the class 6 and 10...
SteveG
64 Class 6 been fine since day one in my Note. Class 10 currently on order.
sgogo said:
Have you done any benchmarking on the random write speeds of these? I am curious to know the difference between the class 6 and 10...
SteveG
Click to expand...
Click to collapse
Anybody?
Do you know?
sgogo said:
Anybody?
Click to expand...
Click to collapse
You do know that each class number relates to the WRITE speed in MB/s. So a class 4 writes at 4MB/sec, Class 6 is 6MB/s and so on and so fourth.
jb0nd38372 said:
You do know that each class number relates to the WRITE speed in MB/s. So a class 4 writes at 4MB/sec, Class 6 is 6MB/s and so on and so fourth.
Click to expand...
Click to collapse
Yes, but thats the "sequential" speed. Important for transferring large files or taking hd video.
I am interested in the random write speed... this is more important in normal daily operations.
Some people have claimed that the class 6 is better than the class 10 for random.
SteveG
sgogo said:
Yes, but thats the "sequential" speed. Important for transferring large files or taking hd video.
I am interested in the random write speed... this is more important in normal daily operations.
Some people have claimed that the class 6 is better than the class 10 for random.
SteveG
Click to expand...
Click to collapse
Some one will have to run some tests to see the random speeds in the newer sandisk cards
Galaxy Note @ mobile
Speed class is NOT for sequentail write speed, but mor e like a random write speed of certain size of data. For example, Class 10 test 25 random write of 4MB size file. Within the 4MB, it is a sequntial write of 512K or smaller data chunk. Class 10 rating need to garannted for each of the 4MB, the write speed is 10MB/s or above.
Have that said, you can have a SD/uSD card that has 25MB/s+ or more sequential write speed but fail Class 10 test due to mis-align data boundary. (Garbage collection happening). Also, Class speed is only garanteed for a non-aged, newly formatted card. As flash memory wear out, they become slower. Also if there was flamented data in the card prior to speed class type of write, it can be significantly slower than the Class speed rating too.
Now, tt really doesn't means much if what you write to it is music or photos or files, something with a known size before the write happened. Because size is known, the write will almost always be purely sequenctial. When the size of the file is unknown, in in shooting a video, that is where class speed come to play. It is what garrannted minmum write speed, so that incoming data won't get drop.
I got a Ultra 64gb micoHDXC Sandisk in my note, running great. I have about 4 gigs left, lots of movies. Class 10
Related
Does anyone have a Class-10 MicroSDHC card running on their Atrix? If so, how's it performing? Thanks.
Ya I want to know this too has someone tried different classes?
Sent from my Atrix 4g using XDA Premium App
i have class 4, 6, and 10 and honestly i cannot tell the difference under normal use. The only reason I got class 6 then upgraded to class 10 was for apps2sd on my nexus. I havnet done any formal tests, but from practical, every day use, no difference.
I do transfer files a lot from pc to phone so of course class 10 transfers them quicker. But normally you are not running many things off of SD, maybe music, which class 2 or 4 is good enough for.
NguyenHuu said:
i have class 4, 6, and 10 and honestly i cannot tell the difference under normal use. The only reason I got class 6 then upgraded to class 10 was for apps2sd on my nexus. I havnet done any formal tests, but from practical, every day use, no difference.
I do transfer files a lot from pc to phone so of course class 10 transfers them quicker. But normally you are not running many things off of SD, maybe music, which class 2 or 4 is good enough for.
Click to expand...
Click to collapse
I am still on the good old 4 GB card I bought a couple years ago. Fares pretty good for all day-to-day activities.
I just put in a class 6 16GB and I don't notice that big of a difference. I don't think you'd really notice a difference unless you were looking hard.
The higher the class of card, the faster the read/write speeds are. Things is, you will only see these speeds if you are transferring big files. If you are just putting MP3's and small videos on the card, you won't see much of a difference. Sequential Write speeds are significantly faster than Random Write speeds, but Sequential Read speeds vs Random Read speeds, there is not much difference.
NguyenHuu said:
i have class 4, 6, and 10 and honestly i cannot tell the difference under normal use. The only reason I got class 6 then upgraded to class 10 was for apps2sd on my nexus. I havnet done any formal tests, but from practical, every day use, no difference.
I do transfer files a lot from pc to phone so of course class 10 transfers them quicker. But normally you are not running many things off of SD, maybe music, which class 2 or 4 is good enough for.
Click to expand...
Click to collapse
Have you tried the Class-10 card in the Atrix? If so, which model/size is it? Thx.
Everyone: Thanks for your inputs!
Class Speed rating ONLY applies to WRITE speeds - has nothing to do with read speeds. Primarily designated for camcorders and other devices that need guaranteed minimum speed for writing data.
The camcorder on the phone doesn't require a specific card class, so spending money on higher speed cards is not a great idea. If you are copying movies from pc to sd regularly then it will save you a bit of time - that is all.
http://www.sdcard.org/developers/tech/speed_class/ and wikipedia explain SD speed pretty simply.
I ordered a 32GB Lexar Class 10 microSDHC. Should be getting it today so I'll post my findings. Planning on dumping all my music and maybe a few videos.
ashdog said:
I ordered a 32GB Lexar Class 10 microSDHC. Should be getting it today so I'll post my findings. Planning on dumping all my music and maybe a few videos.
Click to expand...
Click to collapse
Looking forward to your findings! BTW, where did you purchase it? Thanks.
Bought the Patriot 32g class 10 ...and its crazy fast. Love it.
Sent from my Atrix using XDA Premium App
s1ickwi11y said:
Bought the Patriot 32g class 10 ...and its crazy fast. Love it.
Sent from my Atrix using XDA Premium App
Click to expand...
Click to collapse
Excellent! I'll be picking one up. Thx.
I bought the Lexmar 32gig class 10. I don't see a huge difference unless I'm loading up the card with a lot of files at once.
Yes its as fast as the Patriot from all the specs I've seen but unless you can truly afford the minor difference, just get a lower class.
Sent from my MB860 using XDA App
Saw a post FROM MOTO on the moto forums that says the Atrix can make use of the extra speed up to Class10.
FWIW.
My Kingston class 10 32GB card does not play nice with webtop2sd. However, I can format it with the system. I have not tried to write files to it but writing fat32 filesystems works for sure. It seems as if I can read from the card too. I see the folder created during the fat32 partition creation.
The issue I seem to have is that it cannot create extfs filesystems on the card using the phone. I can use gparted to make the filesystem, but then webtop2sd cannot read it.
http://www.microcenter.com/single_product_results.phtml?product_id=0304662
Anyone know what class this is?
Thanks
nitrogen618 said:
http://www.microcenter.com/single_product_results.phtml?product_id=0304662
Anyone know what class this is?
Thanks
Click to expand...
Click to collapse
It doesn't say.
Here: http://www.ebay.com/itm/16GB-Class-...ory_Card_Readers_Adapters&hash=item2a17118086
Class 10 16gb = 22$, 32 gb class 10 = 50$
nitrogen618 said:
http://www.microcenter.com/single_product_results.phtml?product_id=0304662
Anyone know what class this is?
Thanks
Click to expand...
Click to collapse
I'd bet Class 4.
http://www.amazon.com/Patriot-Signa...FTCK/ref=sr_1_1?ie=UTF8&qid=1324259287&sr=8-1
Nice name brand card from a solid seller (obviously). Prime free 2 day shipping. Had mine awhile and the 16GB works great.
Actually, I want a Class 4 card, due to the high performance of Random write. It's a LOT faster than class 10 cards.
Thanks guys.
not sure really
nitrogen618 said:
Actually, I want a Class 4 card, due to the high performance of Random write. It's a LOT faster than class 10 cards.
Thanks guys.
Click to expand...
Click to collapse
I believe these are current classes and speeds:
Class Speed
Class 2 2 MB/s
Class 4 4 MB/s
Class 6 6 MB/s
Class 10 10 MB/s
Class 10 is over twice as fast as class 4.
That's not all there is to it. Sustained write speeds are different from random write speeds. Its good to have a balance of the 2. Not all brands of cards are created equal. Some class 10 cards do not perform as well as say a sandisk class 4.
Sent from my Samsung Galaxy S II
I just got my class 10 card in the mail today and stupid question I put in but now how do I use it? Like if I wanna put backups on it or move my music or do I need to format it?
Sent from my SAMSUNG-SGH-I777 using XDA App
Anyone? Can I search from the phone xda app. I want to find out the best way to use the sd card. It says 16gb but only has 14. I' d really like to safely put or move my backups and rooms and mods to it and set it as default for 1080p video recording.
Sent from my SAMSUNG-SGH-I777 using XDA App
I downloaded this app, and changed my sdcard from 148 to 2048 (its a class 10 16gb, it made pictures load faster and some other stuff) But how do you measure your SD card's read/write speed?
Like here: http://androidforums.com/lg-optimus-m/307607-class-10-microsd-cards-faster-app-loading.html
hello i just got an amaze and with its camera and video quality i think i need a better sd card as my current one is class 2. any recommendations and letting me me know what the phone can handle without paying for more than i need would be greatly appreciated.
thanks very much
The Amaze can handle a class 10 memory card. This would be preferred as it has the fastest read and write speed that I know of. I am currently using a 16GB class 6 SanDisk and it works really well.
Hope this is helpful. Or maybe someone else can give you more info.
Sent from my world to yours using an HTC Amaze
windcan said:
hello i just got an amaze and with its camera and video quality i think i need a better sd card as my current one is class 2. any recommendations and letting me me know what the phone can handle without paying for more than i need would be greatly appreciated.
thanks very much
Click to expand...
Click to collapse
This should do the trick.
http://www.amazon.com/AmazonBasics-...H4U0/ref=sr_1_2?ie=UTF8&qid=1325371114&sr=8-2
Looks like it may be worth it to go straight to class 10.
Thanks
PNY class 10.
Sent from my HTC Amaze 4G using xda premium
I just got a Samsung 32gb class 10 and it works great.
what is "PNY"?
windcan said:
what is "PNY"?
Click to expand...
Click to collapse
PNY is just a brand
Picked up a Lexar 32gb class 10 for $45 on boxing day. (for you Americans, that's the day after Christmas)
lol
marleyfan61 said:
Picked up a Lexar 32gb class 10 for $45 on boxing day. (for you Americans, that's the day after Christmas)
Click to expand...
Click to collapse
Sent from my HTC Amaze 4G using XDA Premium App
Confused
My Amaze is on it's way to my door this Wednesday, and I too am on the hunt for a good class 10 micro SD card. I had a Patriot 32 GB ordered from Amazon (it had 4+ stars), but then I started reading specific user ratings. It almost looks as though there is a problem with quality/consistency with many of the 32GB class 10s. The Patriot, and several others, had quite a few recent users complain that their class 10 doesn't run any faster then their old class 2 or 4. (The complaints I tried to focused on are from users who had run speed tests and didn't just provide seat-of-the-pants analysis.) Admittedly, I was going for as cheap as I could (the Patriot was only $47), but I looked at several others and they had spotty speed comments as well.
Does anyone have specific knowledge or insight on this? Is it an issue with lower cost manufacturers whereby one card is great but the next can be dreadful. Is it the nature of the beast?
I appreciate your comments.
A class 10 card isn't the way to go with smartphones. Best to get a class 4.
Sharpshooterrr said:
A class 10 card isn't the way to go with smartphones. Best to get a class 4.
Click to expand...
Click to collapse
really, class 4, why?
too late for me, order my 32gb class 10
curious to understand this whole thing
thanks
Sharpshooterrr said:
A class 10 card isn't the way to go with smartphones. Best to get a class 4.
Click to expand...
Click to collapse
I could understand saying a class 10 isn't necessary, but to say it isn't the way to go, a class 4 is best doesn't make sense. Care to explain why?
UHS-1 Cards
I just read where UHS-1 class microSD's "were made for mobile devices". Something about being specifically designed to work with those operating systems. Anyone have experience with any of those? They're awfully expensive.
If you uses a class 2 SD card with a capacity of less than 16Gb and mostly uses it to transfer small files between your phone and PC - that would be sufficiency enough.
If you intend to use a bigger card, say, 32Gb or 64Gb and you are doing a lot of transferring MP3, movies, pictures ect ... especially if moving BIG files, say, more than 1 Gb each (e.g a full MP4 movie may take up to almost 2Gb)
OR
You are frequently backup your SDCard contains and moving them between PC and phone. You will appreciates the higher speed/class of your SDCard. Higher class means higher speed in reading and writting hence saving you a lot of time.
You will not notice much differences between a class 2 and a class 10 card when using it inside your phone though.
An SDCard speeding test's result will be differ from devices and that's exactly manufacturer's stated on their package/info, but, basically you got what you paid for. As we all know, Sandisk is the most expensive card out there and there is a reason for it, just do a little research and you'll know why. Sandisk classed their card at the minimum speed that their cards are capable of, whereas other manufacturer tend to class their card at the average speed that their cards capable of. Meaning a classs 10 Samsung/PNY/Patriot card may not capable of reaching the claimed speed (because, well, results are varies on devices) and the result maybe a little lower than claimed (I've tried Samsung class 10 and PNY class 10 test and the result is somewhere more or less than 9Gb/s writting).
Anyway, a class 2 16Gb Sandisk card is good enough for an average user whereas a higher class/capacity card will increase performances for those who demand more for their task/hobbies/usage
I would agree with the post above, right on the spot. I had a 8 gb class 4, 16 gb class 4, and now 32gb class 10. Did not visibly notice speed in my phone but did notice it when transferring files. You will only benefit when transferring larger files like 1 gb or more.
I only transfer my recorded videos, pictures, mp3 and that's it. I think i once transferred a movie or two.
What would have taken me 1 hr on 16 gb class 4 took me 20 - 30 min on my patriot 32 gb class 10. No problems on it since nov so far.
Sent from my HTC Amaze 4G using xda premium
Sharpshooterrr said:
A class 10 card isn't the way to go with smartphones. Best to get a class 4.
Click to expand...
Click to collapse
I have a class 4 card and the video is choppy when using HD recording. It can't write the larger amount of data fast enough.
A class 10 FTW
marleyfan61 said:
I could understand saying a class 10 isn't necessary, but to say it isn't the way to go, a class 4 is best doesn't make sense. Care to explain why?
Click to expand...
Click to collapse
http://www.xda-developers.com/android/32-gb-micro-sd-analysis-speed-test/
anything over class 4 sacrafices random read/write speeds...meaning, just to write faster the data is more fragmented. Over time, the speed becomes slower and the table used to keep track of data must access parts of the fragments that are free...this reduces performance in higher class cards...if you look at Sandisk they their class two performs way above the minimum write speed, almost double...I always buy sandisk...nothing else...their quality is unmatched...they are the pioneers...A class 4 or class 6 sandisk would outperform many of the class 10's that people are buying right now.
Sometimes as Binary's card has, they lose integrity because of this reason...the index becomes messed up and the data becomes lost eaiser in higher class SD cards and lower quality SD cards...I believe Sandisk tries to minimize this even in their higher speed cards...
---------- Post added at 05:56 AM ---------- Previous post was at 05:34 AM ----------
If you guys take a look at the bitrate of the 1080p video and also add the audio bit rate it doesn't even come close to being 2 MB/s write speed which is a class 2 SD card...the highest bitrate for video I got was 11182 (kilobits per second) = 1.36499023 megabytes per second...add the 127kbps of sound and you barely have 1.4 MB/s write speed needed for the HD video recorded by our amaze...hope this clears things up.
What's the difference between the classes of SD cards? Which one is best for the Atrix?
Sent from my Atrix
The higher the class the better it usually is depending on who makes the sd card. Sandisk is the best in my opinion even though the class cards get very expensive for them. But each card I have bought from sandisk have never failed on me. Try googleing class card speed and their should be a few guides put out there about them. I don't know personally if the ATRIX can handle the very high classes but I could be wrong.
Sent from my ATRIX using the Premium XDA App
mugabuga said:
What's the difference between the classes of SD cards? Which one is best for the Atrix?
Sent from my Atrix
Click to expand...
Click to collapse
The answer to your first question is "SPEED" and that is it. It has nothing to do with who manufactured it (except indirectly in that lesser known mfrs may lie or exaggerate about their speed.)
In order to identify it as Class 4 or Class 10, it must have speed that fits in that classification.
Here are the basics.
Class Speed
Class 2 2 MB/s
Class 4 4 MB/s
Class 6 6 MB/s
Class 10 10 MB/s
Hope that helps.
FWIW, I am using an A-Data Class10 16GB card and it is smoking fast. No skips or pauses when playing media.
nunjabusiness said:
The answer to your first question is "SPEED" and that is it. It has nothing to do with who manufactured it (except indirectly in that lesser known mfrs may lie or exaggerate about their speed.)
In order to identify it as Class 4 or Class 10, it must have speed that fits in that classification.
Here are the basics.
Class Speed
Class 2 2 MB/s
Class 4 4 MB/s
Class 6 6 MB/s
Class 10 10 MB/s
Hope that helps.
FWIW, I am using an A-Data Class10 16GB card and it is smoking fast. No skips or pauses when playing media.
Click to expand...
Click to collapse
Hey I learned something today. thanks.
Sent from my ATRIX using the Premium XDA App
I am using a Transcend, class 4, 16GB card and also have no issues with skipped music, or recording/playback of videos. The only place I see a difference is with benchmarks if I drop in a class 10 from one of my other devices. Other than having higher benchmarks I see no advantage to paying the extra cash for a class 10 sdcard for the Atrix.
I copy large files often to my phone and also for when I make full SD card backups. It makes the process so much faster. Well worth the extra cash. Time is money afterall
now im wondering if my "frozen" songs its because my sd card.
i'll buy one class10 and see, my sd even show the class, should be class 1
The answers are right on. I have a 16gb class 4 and it is a lot better than the 8 gb class 2. Transferring zip files is a breeze. I am sure a higher class will be in my future.
I have a class 10 I got on sale and coming from my class 4 I could not go back. I do a lot of music transfers and the class 10 is a night and day difference
Sent from my MB860 using xda premium
Pbwizkid said:
I have a class 10 I got on sale and coming from my class 4 I could not go back. I do a lot of music transfers and the class 10 is a night and day difference
Sent from my MB860 using xda premium
Click to expand...
Click to collapse
Sounds like I need to make another purchase...thanks man!
abomb78 said:
Sounds like I need to make another purchase...thanks man!
Click to expand...
Click to collapse
Ya just make sure you shop around a bit and watch for deal i got my 16gb class 10 for 25 bucks from some site doing a 2 hour sale or something
Hope it can handle 32GB well without any issues.
A normal class 10 is enough? Any specific suggestions?
Thanks in adv
kwyx1 said:
Hope it can handle 32GB well without any issues.
A normal class 10 is enough? Any specific suggestions?
Thanks in adv
Click to expand...
Click to collapse
Some time ago class 4 and class 6 cards were faster when dealing with small files. But it seems that nowadays class 10 cards are superior.
Class 6 slightly slower class 10, the copy speed also depends on the cluster size (I mean small) class 10 always faster class 6.
In Optimus G only MTP connection because of files are transferred slowly by themselves and there are errors, so that no matter what class 6 or 10
bgkone said:
Class 6 slightly slower class 10, the copy speed also depends on the cluster size (I mean small) class 10 always faster class 6.
In Optimus G only MTP connection because of files are transferred slowly by themselves and there are errors, so that no matter what class 6 or 10
Click to expand...
Click to collapse
Transfer speed from PC to Card is fine.
But its interaction with the phone should be fast.
class 10 means 10MBPS, but there are sdhc and sdxc cards which support 20+ and 50 MBPS write speeds respectively if your phone supports such speeds..So my intent was to ask that.
kwyx1 said:
Transfer speed from PC to Card is fine.
But its interaction with the phone should be fast.
class 10 means 10MBPS, but there are sdhc and sdxc cards which support 20+ and 50 MBPS write speeds respectively if your phone supports such speeds..So my intent was to ask that.
Click to expand...
Click to collapse
I use a class 10 and even though I don't notice any speed different, it is sufficient enough. Only use class 10 if you use a camera alot since burst photos can be saved easily.
AND... don't buy SD cards from eBay if they are really cheap, most often they are fake.
Gysper said:
I use a class 10 and even though I don't notice any speed different, it is sufficient enough. Only use class 10 if you use a camera alot since burst photos can be saved easily.
AND... don't buy SD cards from eBay if they are really cheap, most often they are fake.
Click to expand...
Click to collapse
SanDisk 128GB card works in e970. Mine came in today, using it right now.
Sent from my LG Optimus G using XDA Premium 4 mobile app
I use a SanDisk ultra 16 GB microSDHC card and copying speeds for large files (>100 mb) is around 24-25 MBps.
Go for 32GB
Go for 32GB