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.
Related
My gf was nice enough to get me a 4gig class 2 sd card...I was wondering if there were any downsides to me having this and if any could then be fixed withough having to get a class 6 which from my searches and reading in the forums if a really good investment.
your class 2 card will just not be as fast, but it still usable.
holmes901 said:
My gf was nice enough to get me a 4gig class 2 sd card...I was wondering if there were any downsides to me having this and if any could then be fixed withough having to get a class 6 which from my searches and reading in the forums if a really good investment.
Click to expand...
Click to collapse
downsides is..class 2 wont run roms as fast as class 6. but still pretty much usable
4gig class 6 on newegg.com is now about 14 after shipping
sd cards and class ratings
The problem with sd cards, are that the rated class is often way off. They often perform much better.
For example, I have two kingston class 5 cards, that have read speeds at 12.5MB/sec, and one Sandisk class 4 with read speeds at >16MB/sec.
As comparison, I have a no-name class 6 that barely reads at 8MB/sec.
All three brand name cards also writes faster than the no name class 6. So why they are rated class 4 and not 6 is a mystery to me.
Ideally, we should have a thread where people posted the read/write speed of their sd crads, and included a link to where you bought it from. Mymemory.co.uk is a good place to get them from, in my expoerience. Does anyone know of online shops shipping worldwide that actually states the r/w speed of the cards? Or better yet, a table/wiki with this information?
To answer OPs question though: Class 2 will probaby be slow with Hero-roms or apps2sd. But you cn always test it and see how well it performs. I imagine reading speed is most important.
naguz said:
The problem with sd cards, are that the rated class is often way off. They often perform much better.
For example, I have two kingston class 5 cards, that have read speeds at 12.5MB/sec, and one Sandisk class 4 with read speeds at >16MB/sec.
As comparison, I have a no-name class 6 that barely reads at 8MB/sec.
All three brand name cards also writes faster than the no name class 6. So why they are rated class 4 and not 6 is a mystery to me.
Ideally, we should have a thread where people posted the read/write speed of their sd crads, and included a link to where you bought it from. Mymemory.co.uk is a good place to get them from, in my expoerience. Does anyone know of online shops shipping worldwide that actually states the r/w speed of the cards? Or better yet, a table/wiki with this information?
To answer OPs question though: Class 2 will probaby be slow with Hero-roms or apps2sd. But you cn always test it and see how well it performs. I imagine reading speed is most important.
Click to expand...
Click to collapse
Sandisks are on average the fastest of the flash memory cards... and i believe you pay a slight premium for it? i have one, but from amazon for like $30 so idk
I currently run an 8 gig class 4 card by PNY with a one gig partition for my apps. It's been slowing down lately (because I'm using nearly half of it). Gonna get my wife to get me a 16 gig class 6 card next month.
I had a classless 2 gb card and it runs just the same as this sandisk 8gb class 6.
I don't see what everyone talks about. I tried them both on cm 4.0.4 and now with this new CM and I don't see a significant difference.
I'm running like 7 widgets all over the 5 pages.
Maybe I just can't tell...
Ssantos6981 said:
I had a classless 2 gb card and it runs just the same as this sandisk 8gb class 6.
I don't see what everyone talks about. I tried them both on cm 4.0.4 and now with this new CM and I don't see a significant difference.
I'm running like 7 widgets all over the 5 pages.
Maybe I just can't tell...
Click to expand...
Click to collapse
yeah it seems that the classless cards, although slower on file transfers, are not maximizing bandwidth with swap and stuff so looks like it's even... and only SDHCs have a class looks like. my stock G1 card worked fine but crashed a few times with apps2sd... running hero is probably why though.
The class refers to the minimum read/write speed necessary for continuous streaming of information, not the maximum read/write speed (more important for digital cameras and camcorders than our devices). The common misconception is that a class 6 card is faster than a class 2 card. You have to be aware of the MAXIMUM read/write speed which will tell you which performs better: ie- you may have a class 2 with a higher read/write speed than the class 6 which would make the class 2 faster.
ofsinreno said:
The class refers to the minimum read/write speed necessary for continuous streaming of information, not the maximum read/write speed (more important for digital cameras and camcorders than our devices). The common misconception is that a class 6 card is faster than a class 2 card. You have to be aware of the MAXIMUM read/write speed which will tell you which performs better: ie- you may have a class 2 with a higher read/write speed than the class 6 which would make the class 2 faster.
Click to expand...
Click to collapse
that usually happens when people get a lower-quality/class Class 6 card thinking they're all fast... fact is, Sandisk makes the Class 6 Mobile Ultras which get 16mb/s average and maxxed at 24mb/s once for me while some crappy Class 6's might just get the bare minimum for Class 6: 6 mb/s
I have been following xda-developers since I unlocked my first at&t tilt, and people are always making that mistake! Just look up any HERO ROM and they will require "Class 6 micro-SD Card"! The fact is the class is not a potential speed rating, whether it is 2 or 6 or even 10! The class # refers to the lower limit of the device that is using the card, not the capability of the card. For example, if your device is capable of writing at 12Mb/s then you can use any class card rated at 12Mb/s regardless of whether it is a class 2 or class 6 and neither will be faster. Conversely if your device is only capable of writing at 4Mb/s then you cannot use a calss 6 card because the class 6 card requires a device to write continuously at lease 6Mb/s. Most people think that a class 6 card is labeled "class 6" because it is guaranteed to read/write at least 6Mb/s and a class 2 is labeled "class 2" because it is guaranteed to write at least 2Mb/s; but that is not true. The speed rating is not the same as the class rating. They have very little to do with one another.
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.
Although 99.999999999999999% of the MicroSD Cards which are 32GB are Class 2, I noted that the 16GB which Verizon stocked in the Rezound is a Class 4. I suspect that means we should go no lower than Class 4.
Anyone know of a good and legitimate 32GB SD card which is Class 4 or even better? I note that Class 6 and Class 10 all tend to be brands I have never heard of (other than 1 by PNY).
Recommendations are appreciated.
Sandisk has a class 4 32gb micro on Amazon for $37. I just ordered mine, and it should be here in a few days. I'll let you know what I think of it when it gets here.
Anything faster?
Anyone successfully use a Class 6 or 10 that was NOT a fake and actually worked close to speed?
This is a Class 10 but I don't want to guinea pig it
http://www.amazon.com/PNY-microSDHC-Flash-Memory-P-SDU32G10-EFS2/dp/B005BOMU3K
Someone put in a 64gb, don't know what class, and the RZD formatted it and it worked.
http://forum.xda-developers.com/showthread.php?t=1353148
I asked about class in there and someone said unless you are going to move large amounts of stuff regularly then class 2 or 4 is fine.
feralicious said:
I asked about class in there and someone said unless you are going to move large amounts of stuff regularly then class 2 or 4 is fine.
Click to expand...
Click to collapse
Yeah, the only real difference is the transfer time. If you're swapping a lot of data on a daily basis (like copies of your BluRay movies), then a higher class rating makes it go faster, but doesn't have any other effect on the performance of the phone, to my knowledge.
Apsalus said:
Yeah, the only real difference is the transfer time. If you're swapping a lot of data on a daily basis (like copies of your BluRay movies), then a higher class rating makes it go faster, but doesn't have any other effect on the performance of the phone, to my knowledge.
Click to expand...
Click to collapse
JD, there's a thread elsewhere on xda that talks about card speeds and basically recommends that the sweet spot is a 32g class 4 card. I have 3 of 'em (all bought at various sales just under $40). One is in my Rezound; one is in my tablet, and one is kept synced to the one in my phone via Microsoft Synctoy....because all cards ultimately fail.
i was reading somehwere that this may affect the speed of how videos write to the card if you save to card..is that true?
i'm gonna get a 32 gig as well, but should i go for class 4 or 6?
hgoldner said:
JD, there's a thread elsewhere on xda that talks about card speeds and basically recommends that the sweet spot is a 32g class 4 card. I have 3 of 'em (all bought at various sales just under $40). One is in my Rezound; one is in my tablet, and one is kept synced to the one in my phone via Microsoft Synctoy....because all cards ultimately fail.
Click to expand...
Click to collapse
Do you have an amazon link to the one you found to be the best?
feralicious said:
Someone put in a 64gb, don't know what class, and the RZD formatted it and it worked.
http://forum.xda-developers.com/showthread.php?t=1353148
I asked about class in there and someone said unless you are going to move large amounts of stuff regularly then class 2 or 4 is fine.
Click to expand...
Click to collapse
Yeah that 64 GB is a class 6. It's part of Sandisk's new mobile ultra cards. They make em in all sizes I believe.
jayochs said:
i was reading somehwere that this may affect the speed of how videos write to the card if you save to card..is that true?
i'm gonna get a 32 gig as well, but should i go for class 4 or 6?
Click to expand...
Click to collapse
That's a valid concern. I don't know the bitrate at which the camera records the various formats that it is capable of, but I'd say that a Class 4 is a safe bet in any case.
For a smartphone doing HD recording you want "atleast" a 4. Anything slower might get stuck in swapping. Personally I think it's one of those things with go with what you can afford/feel comfortable with. Though I'm also using a class 10 16GB since I can't stand being bogged down on transfers. I mean honestly, it's an LTE phone, not an HD camera. I don't need a 32gb, I stream everything.
Play back is a different story, a class 2 32gb works fine as long as the app does proper buffering. Though it will always load faster with a faster SD card.
"Sandisk has a 64GB micro SDHC card out, although its $219."
Ouch. Not cheap.
surfer2.3 said:
"Sandisk has a 64GB micro SDHC card out, although its $219."
Ouch. Not cheap.
Click to expand...
Click to collapse
This one works and is a much better price, especially when mom gives it to you for xmas.
http://www.amazon.com/SanDisk-Mobil...510U/ref=sr_1_2?ie=UTF8&qid=1326679568&sr=8-2
Thread about it here:
http://forum.xda-developers.com/showthread.php?t=1353148
I am going to buy the 32 gb Prime (with keyboard) and have been researching memory card options. I am leaning towards the following:
1. Lexar High Speed microsd 32gb Class 10 (for the device)
2. Sandisk Extreme SDHC 32gb class 10 (for the docking station)
I will use this to watch movies, play music, surf the web, take notes, use apps, and play emulators.
My only concern is I've heard the class 10's have trouble with speeds on smaller files/apps/programs. Will that be an issue? Or will these two cards be a good setup?
Pretty much everything will be "slow" on working with smaller files / programs due to file system overhead.
Doesn't matter if it's a class 2/4/10/1,000.
John Kotches said:
Pretty much everything will be "slow" on working with smaller files / programs due to file system overhead.
Doesn't matter if it's a class 2/4/10/1,000.
Click to expand...
Click to collapse
I've read similar things as well. You will truly be fine if you just get a Class 4 and save the money.
irishtexmex said:
I've read similar things as well. You will truly be fine if you just get a Class 4 and save the money.
Click to expand...
Click to collapse
with smaller files (a few data blocks in size) you have as many writes to the file system management space as you do data block writes.
with large files there are much fewer writes proportionately which is why large files have higher throughput.
Sent from my MB855 using Tapatalk
I went with a 32gb class 10 pny micro sd from newegg. It was 47.99 and I finally tested it last week. Wrote video/music files at 11.5-12mb/sec. Some of the other class 10s had reviews claiming they only wrote at class 4 speeds. I can't stand how slow my class 4 16gb in my phone us...
Hey cyi1 is there a chance you would mind testing the write speed using your phones sd card too just to get a view of the speed difference from class 10-4?
Thanks in advance if you can. I'm sitting here trying to decide whether I get the 32gb class 4 or the 16gb class 10 as they are about the same respective price here.
distho said:
Hey cyi1 is there a chance you would mind testing the write speed using your phones sd card too just to get a view of the speed difference from class 10-4?
Thanks in advance if you can. I'm sitting here trying to decide whether I get the 32gb class 4 or the 16gb class 10 as they are about the same respective price here.
Click to expand...
Click to collapse
I second that, would like to know this aswell. please let us know.
You might want to give this a read.
I'd also suggest getting SD cards from a source with a good exchange policy. The speeds can fluctuate wildly within a class and even from idenetical cards from the same manufacturer.
So, what ever cards you get, test them and if not-acceptable, exchange them.
I stated this in the "Ultimate Accessory" thread. But I'm going to say it here to.
Don't buy the Patriot MicroSD 32GB Class 10. It's awful and I'm not the only one stating this. It used to be $100+ (I bought it when it first came out), but now it's like $40 because people realized how crappy they are. Speed throughput was never the problem, but they randomly corrupt and when it DOES happen, it's bad. Mine corrupted on me 3 times in only a few months. Each time I was lucky to have had a backup (Ti Media Sync) and managed to save just about everything. The first time I lost a lot of pictures that hadn't backed up yet.
Anyway, the corruption doesn't come from using USB or anything. Everytime mine randomly corrupted, I was using it away from a computer or charger. First time I was watching a video off the card (admittedly porn) and the second time I was taking a picture. Third time I don't know because the phone was in my pocket in standby and when I pulled my phone out to show someone a pic from the phone it wasn't there, along with the rest of the stuff that was on the SD. Oh, and the first time this happened was on my Nexus One, not my Sensation.
Anyway, I replaced it with the Samsung 32GB Class 10 (bought it for just over $80) and it's been rock solid so far (2 months in). Speeds are pretty much identical to the Patriots. I use "Boot Manager" and dual boot a couple different ROMs off it, and they all fly.
Just wanted to give you guys a heads up.
I went "cheap" on a class 4 Transcend 32GB for both my photon and my upcoming Transformer Prime.
In actual copies, I was seeing in the 6-7 MB range so I won't complain.
I purchased the ADATA 32GB Class 10 from NewEgg and it works wonderfully. I haven't done any testing beyond copying 4GB of video files to it, which copied at a rock solid 17MB/s! I'm impressed needless to say.
Model AUSDH32GCL10-RA1
Could you run a crystalmark benchmark on your card(s).
If the transcend random 4k R/W speeds are decent, that may be the ticket for me.
Thanks
curreyr:
i can, but I won't get to this until Sunday when i get home.
6mb/second was not on random writes, it was on bulk copies of mp3 files for the phone
Sent from my MB855 using Tapatalk
no problem, and no real hurry (since like others in the holding pattern to actually get a prime).
My wife's xmas gift of a new camera is getting a SanDisk 32gb class 10 "extreme" (SDSDRX3-032G-A21) that I plan on running crystalmark tests on next week.
I might even hold off getting a micro sd until 64gb cards drop closer to $100 ... (e.g SDSDQY-064G-A11A might be killer at ~$100)
curreyr said:
Could you run a crystalmark benchmark on your card(s).
If the transcend random 4k R/W speeds are decent, that may be the ticket for me.
Thanks
Click to expand...
Click to collapse
Attached are the results... It's just under 5 in sequential mode...
I was also wondering this. Will there be any difference in watching a video file (1080p) between class 4 or 10?
Large video files will be skewed towards the sequential mode -- which tested @ 20MB per second. That's 160Mbits / second.
In theory, this class 4 card could playback a maximum bit-rate blu-ray iso without a problem. Blu-ray maximum bit rate is 48 Mbits (or 6 MBytes) / second.
Regards,
Class 4 vs 10
Unless you are recording HD video to the SD card, class 10 is a BIG waste of money. The class only refers to the write speed, NOT the read speed. If you are just loading videos or music onto the SD card, then even class 2 will be fine. It may take you longer to load the original files to the card, but it is NOT going to be slower in reading the data compared to class 10.
These class ratings are really needed for HD video camcorders and high FPS (frame per second) cameras that demand high bit rate & speeds. I use a 6 for 720p video on my nikon dslr and for 4-6 fps 14 megapixel shots, but class 2/4 for my phone/tablets where it is just used to store movies, songs, pictures, etc...
I just picked up 2 Samsung class 10 32gb Sd cards from fry for $35 a piece. I think it was a wise decision and will help me out in the future. I know it's overkill but I think for that price it was worth it. So now my Prime will have 96gb of storage when I hook up my dock. That is truly overkill as well, but who knows when I might need all of it lol.
After a huge thread I read here about classes, I changed my mind and went with a class 4 for the Prime (was thinking I mist get a class 10). I picked a Transcend 32gb class 4 off of Amazon for $33 delivered.
...to run optimally while recording video/taking pics?
Or can you get by with a lesser class (6) or so?
Just wondering what everyone is using and why.
I have a 32GB class 4 SanDisk and it works great.
Sent from my Energized Amaze
I also have a 32gb class 4 (SanDisk). I haven't noticed any lag when picture taking or video recording.
I was looking up what kind of MicroSD to get my Amaze about a month ago and decided to get this one. Here are some things I picked up while doing the research.
1. Small read/writes usually takes place on the SD cards. Getting a class 10 with good write speeds for large files doesn't mean good speeds with small files.
2. SanDisk is a good brand. Mine is advertised as a class 4 but performs at class 6.
3. If you're looking at the Patriot class 10 microSD, I recommend that you stay away from it. People have been reporting errors with that card on Android devices. Patriot said that they've fixed the issue, but there are still a lot of bad cards floating around. You never know what you get.
4. If you do go with SanDisk, get it from a reputable dealer (not eBay). There are tons of SanDisk counterfeits.
Thanks so far guys - exactly the input and information I was seeking.
I have a 8g Class 6 from my G2, and a 4g Class 10 I paid $6 for to test out - both by Transcend off newegg.
Will get something with more capacity soon, and was wondering which direction to head.
I just got a patriot 16gb class 10 about a week or two ago from newegg for $10 ($20 with a $10 rebate) and it's awesome. I mostly notice it when transferring files (videos and music) between my phone and laptop. I had a 16gb class 6 ADATA before this one, but it was only 12gb cuz I originally used it with my G1 and had it partitioned.
My wifi downloads have been quicker lately, but I'm sure that's just coincidence. Anyways, good luck!
Sent from my HTC_Amaze_4G using XDA App
Higher classes are more prone to errors. With the bitrate phone records hd. A class 2 is way more than enough. Go with a class 4 SanDisk. Higher classes have better sequential good for recording movies etc. Lower classes have better random read right and less prone to long term damage. The higher class you go the more risk you'll have of getting corrupt data etc. The only benefit of higher class is better sequential write speeds. ALWAYS GO with sandisk
seansk said:
Higher classes are more prone to errors. With the bitrate phone records hd. A class 2 is way more than enough. Go with a class 4 SanDisk. Higher classes have better sequential good for recording movies etc. Lower classes have better random read right and less prone to long term damage. The higher class you go the more risk you'll have of getting corrupt data etc. The only benefit of higher class is better sequential write speeds. ALWAYS GO with sandisk
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If I had known this sooner, I wouldn't have invested in a 32GB Class 10 disk (not sandisk). So far, I've had it crash twice, and had to reformat every time. It's rather annoying and you do lose all your data; so for those out there still considering it, please add this to your factors of consideration.
16 GB class 6 SanDisk. No lag. No problems.
Sent from my HTC_Amaze_4G using XDA App
daeboe said:
If I had known this sooner, I wouldn't have invested in a 32GB Class 10 disk (not sandisk). So far, I've had it crash twice, and had to reformat every time. It's rather annoying and you do lose all your data; so for those out there still considering it, please add this to your factors of consideration.
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Always buy sandisk. I have not heard of any sandisk going bad but heard of all other brands going corrupt over and over. I don't believe sandisk has a class 10 or class 8. They always stick to stability and quality and is worth the price. Besides a class 4 sandisk usually outperforms a class 6 or 8 of other brands. Search for my posts regarding memory topics in accessories I talk about sequential read write and random read write and how the bit rate our phone records video in HD is waaaay below even a class 2. a good balance of sequential read write (long files such as videos or movies) and random read write (gigs of small files) is either a class 4 or class 6 if i was going to go allout I would get the new 64gig card made by sandisk for mobile phones. I think its a class 6
seansk said:
Always buy sandisk. I have not heard of any sandisk going bad but heard of all other brands going corrupt over and over. I don't believe sandisk has a class 10 or class 8. They always stick to stability and quality and is worth the price. Besides a class 4 sandisk usually outperforms a class 6 or 8 of other brands. Search for my posts regarding memory topics in accessories I talk about sequential read write and random read write and how the bit rate our phone records video in HD is waaaay below even a class 2. a good balance of sequential read write (long files such as videos or movies) and random read write (gigs of small files) is either a class 4 or class 6 if i was going to go allout I would get the new 64gig card made by sandisk for mobile phones. I think its a class 6
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I had to send my 32gb class 10 Sandisk in to get replaced because of data corrpution. I agree though, Sandisk is great.
I have a Samsung class 2 8gb. Pretty good for waht I use it
Sent from my HTC_Amaze_4G using xda premium
I have SanDisk 16GB Class 2, I bought a class 10 and its actually slower than my Class 2. Plus yes, it's more prone to error. My previous android phone would freeze up because of the class 10. Moral of story: SanDisk has great speeds even on class 2
Sent from my HTC Amaze 4G using XDA App
Binary100100 said:
I had to send my 32gb class 10 Sandisk in to get replaced because of data corrpution. I agree though, Sandisk is great.
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sandisk doesn't make class 10's or 8's, but It could be imported or something or maybe even a knockoff...the only way to make sure you have a sandisk is to call them and ask if they actually sell class 10, to my knoweldge the fastest microsd they sell is a class 6. can you point me to their webiste or somewhere, I am very interested. they do sell class 10 SD but not micro sd. I am very curious where you got this and how sandisk is actually replacing this...I have looked all over for a class 10 micro sd.
you can buy it at newegg: for 120 http://www.newegg.com/Product/Product.aspx?Item=N82E16820171571
or on their webiste for double the price lol: http://www.sandisk.com/products/mobile1-memory-products/sandisk-ultra-microsdxc-card
don't forget to increase your read ahead cache for the sd interface too. 2048K should be the optimal size.