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Old June 14th, 2012, 01:09 AM   #1 (permalink)
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Default Class 10 vs UHS-1 cards..

Sorry I'm having a little trouble seeing the difference. I saw a post with a sale for class 6 64GB card for 49.99. This is a good deal I guess but I see a class 10 uhs-1 card for the same price. Will the uhs-1 card work with the s3? Also on all the class 10 cards I don't see a 10 in a circle but a 1,as in uhs-1 I guess? Sorry I'm confused, I need a new card should I get class 6,10,or uhs-1,or class 10 uhs-1? Are all class 10 cards uhs-1,because I can't find one image of a class 10 card with a 10 in a circle on it. Even the best buy link of the class 6 card has a 1 on it not a 6,ao is it a uhs card or a class 6? Sorry I'm really confused

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Old June 14th, 2012, 01:22 AM   #2 (permalink)
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One more thing, the advantage of sdxc over sdhc is being able have files over 4gb, is there a real necessity on the s3 for this? Will hd videos be this large?
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Old June 14th, 2012, 06:52 AM   #3 (permalink)
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One more thing, the advantage of sdxc over sdhc is being able have files over 4gb, is there a real necessity on the s3 for this? Will hd videos be this large?
Yes, HD videos are this large, HD movies and sporting events can easily be over 4GB in size.

It was a pain to re-encode them at the lower bitrate to get them to fit, but thankfully with sdxc I don't need to do this anymore.
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Old June 14th, 2012, 07:10 AM   #4 (permalink)
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Ah ok ty
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Old June 14th, 2012, 08:34 AM   #5 (permalink)
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I'm also interested in the original poster's question:

What class (speed) SD card is preferred to help performance of the S3?

Maybe another way to ask: what's the highest class speed the S3 can support? Example: If the S3 can't handle speed faster than, say class 6, there's no reason to get a class UHS-1 card, right?

Which speed is more important (will most likely be the bottleneck or limiting factor)? Read or write?

Which characteristic is more important? SDXC (vs SDHC) or class (speed)?

Thanks.
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Old June 14th, 2012, 08:43 AM   #6 (permalink)
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So I ordered a Class 6 SDHC 64 GB. I made the wrong decision???
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Old June 14th, 2012, 08:46 AM   #7 (permalink)
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This is what I ordered, not exact order site, but exact product.

The pic says sdxc but title says sdhc, so i'm guessing it is sdhc. Did I make the wrong decision, should I somehow try to return it and get an SDXC. What I read everywhere talked about classes but never the difference in XC and HC or I would have made sure of that as well! Sorry, I just don't know much about this stuff

SanDisk Mobile Ultra 64GB microSDHC Flash Memory 619659070076 SDSDQY-064G-U46A | eBay
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Old June 14th, 2012, 08:51 AM   #8 (permalink)
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I've downloaded a few sdcard benchmark programs off the market but non of them work with my UHS-1 card.

Would like to know what the performance actually is.
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Old June 14th, 2012, 08:56 AM   #9 (permalink)
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Quote:
Originally Posted by bdclary View Post
I'm also interested in the original poster's question:

What class (speed) SD card is preferred to help performance of the S3?

Maybe another way to ask: what's the highest class speed the S3 can support? Example: If the S3 can't handle speed faster than, say class 6, there's no reason to get a class UHS-1 card, right?

Which speed is more important (will most likely be the bottleneck or limiting factor)? Read or write?

Which characteristic is more important? SDXC (vs SDHC) or class (speed)?

Thanks.
I dont know what the fastest speeds the phone can write and read. I've heard class 10 would be pointless, but you would have to figure if you care about speeds to and from your PC - then get a higher class.

Write speeds would probably be the factor since they are always slower than read. I dont think either would bottle neck unless you are writing data and doing something intensive on the phone.

sdxc would be more important if you want more than 32gbs. If phones can't read/write passed 11mbs (taken from what someone mentioned, i never verified this) then it really comes down to what you want to do.
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Old June 14th, 2012, 09:32 AM   #10 (permalink)
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i was under the impression that Class 10 was required for recording decent video. Have I been mislead?
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Old June 14th, 2012, 02:59 PM   #11 (permalink)
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I actually read another thread somewhere where people stated Class 10 cards actually achieved higher read/write speeds in the GS3, so I was thinking of grabbing one when I see a decent price.
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Old June 14th, 2012, 03:03 PM   #12 (permalink)
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UHS-1 is usually faster.

CARDS - What is UHS-1 ? | Integral Memory

Speeds up to 104MBps. However, don't expect those speeds on any of the cards available now. Sandisk's UHS-1 cards seem to get about 30MBps (which would be class 30 if it used the old grading system).
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Old June 14th, 2012, 03:31 PM   #13 (permalink)
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Quote:
Originally Posted by darkestred View Post
I dont know what the fastest speeds the phone can write and read. I've heard class 10 would be pointless, but you would have to figure if you care about speeds to and from your PC - then get a higher class.

Write speeds would probably be the factor since they are always slower than read. I dont think either would bottle neck unless you are writing data and doing something intensive on the phone.
I don't care about speeds to/from PC. I do care about how long it takes the phone to finish writing a newly captured photo or video to the card so I can promptly use the phone to capture another. I don't want to wait to take another picture.

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Originally Posted by darkestred View Post
sdxc would be more important if you want more than 32gbs. If phones can't read/write passed 11mbs (taken from what someone mentioned, i never verified this) then it really comes down to what you want to do.
The 64gb cards seem awfully expensive right now, and 32gb should hold me over until the 64gbs come down. So if I'm looking for a 32gb card, sdxc isn't really necessary?

Also, what is the 11mb limit you're referring to? Individual file size limit?
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Old June 14th, 2012, 10:32 PM   #14 (permalink)
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What makes it even more confusing is on ebay and amazon, when you look at a card, the title may say uhs-1 or class 10 but in the pics it will be missing on the product, or vice versa, hard to know what you're really getting
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Old June 14th, 2012, 10:52 PM   #15 (permalink)
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Quote:
Originally Posted by bdclary View Post
I don't care about speeds to/from PC. I do care about how long it takes the phone to finish writing a newly captured photo or video to the card so I can promptly use the phone to capture another. I don't want to wait to take another picture.



The 64gb cards seem awfully expensive right now, and 32gb should hold me over until the 64gbs come down. So if I'm looking for a 32gb card, sdxc isn't really necessary?

Also, what is the 11mb limit you're referring to? Individual file size limit?
What do you consider expensive? I bought an sdxc class 10 64gb card for about $10 less than a 16gb class 4 cost two years ago. Paid $70 bucks for it. And there were daily deals selling them on various sites for even less, like $40-$50.
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Old June 14th, 2012, 11:00 PM   #16 (permalink)
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Quote:
Originally Posted by bdclary View Post
I don't care about speeds to/from PC. I do care about how long it takes the phone to finish writing a newly captured photo or video to the card so I can promptly use the phone to capture another. I don't want to wait to take another picture.



The 64gb cards seem awfully expensive right now, and 32gb should hold me over until the 64gbs come down. So if I'm looking for a 32gb card, sdxc isn't really necessary?

Also, what is the 11mb limit you're referring to? Individual file size limit?
Probably should have typed it as such: 11mb/s megabits per second.
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Old June 15th, 2012, 02:58 PM   #17 (permalink)
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Quote:
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What do you consider expensive? I bought an sdxc class 10 64gb card for about $10 less than a 16gb class 4 cost two years ago. Paid $70 bucks for it. And there were daily deals selling them on various sites for even less, like $40-$50.
I've seen as low as $80 for a 64gb card, which seems a bit high when I can get a 32gb card for under $30.

So, are the performance gains from a UHS-1 card worth it? Since it took my roughly two years to nearly fill up the 16gb card that came with my Droid X, 32gb could hold me over until the 64gb price comes down.

Quote:
Originally Posted by darkestred
Probably should have typed it as such: 11mb/s megabits per second.
I know what mb/s is , just want to confirm that that's the fastest write speed for a cell phone, specifically the S3?
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Old July 10th, 2012, 05:30 PM   #18 (permalink)
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Sorry to revive this thread but since I've been asking myself the same questions I figured why not give my 4 cents in this matter...!

I went through the very painful process of contacting Samsung mobile tech support and after talking/emailing about 5 totally clueless agents and being given totally irrelevant answers, I finally learned that the S3 is NOT UHS-1 compliant. Which means that purchasing that Sandisk UHS-1 class 10 cards right now is utterly useless. If the S3 is not compliant then I seriously doubt that any other phone is.

Unfortunately I learned all this after purchasing my 64gb UHS-1 micro SDXC card...so if this can save people a few bucks, then alas my research will not have been in vain.

Now, some interesting facts:

Two Sandisk cards were test in the same card reader (internal, on my PC, purchased before UHS-1 was invented), one being the 64GB Class 10 UHS-1 micro SDXC, and the other being a regular form-factor 8GB Class 10 SDHC. Cards were benchmarked using the latest version of CrystalDiskMark with 5 passes of 50MB of data, twice.

64GB micro SDXC: about 9MB/sec Read(!), between 7 and 8MB/sec write
8GB SDHC: 22MB/sec Read, about 7MB/sec write

It is a known fact that host devices which are not UHS-1 compliant will give lower speeds...but...less than half the read speed of SDHC?!?!? I've seen that card (UHS-1 microSD) tested at 28MB/sec read!!! Does this mean that we would get better performances with the class 6, non-UHS cards???
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Old July 10th, 2012, 10:42 PM   #19 (permalink)
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Has anyone purchased a Patriot Memory sd card? Anyone know of their quality in comparison to other sd cards?

Newegg.com - Patriot LX 64GB Secure Digital Extended Capacity (SDXC) Flash Card Model PSF64GSDXC10

How would you compare this (SDXC) deal to the sd cards you have purchased?
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Old July 10th, 2012, 11:06 PM   #20 (permalink)
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I bought 64gb Sandisk class 6 30mb/s off Amazon for around $70. This is same speed I used in my Sony Nex3 small frame DSLR camera. The S3 seems to be a hair quicker on the trigger than even my Nex that has a 7.2fps burst rate with no blur. I cannot see needing anything any quicker for my phone camera. I've taken about 100-125 pictures with my S3 since firing it up on the 6th. VERY happy with the performance of camera, card, and of course the whole phone aspect of the phone lol.
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Old July 11th, 2012, 08:23 AM   #21 (permalink)
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I am getting 17 -18 megs per second on the UHS-1 card in my S3. While that is not full 30, it's still faster than a class 10. So it's not as fast as it could be, it's still the fastest out there.
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Old July 11th, 2012, 09:02 AM   #22 (permalink)
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Quote:
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I am getting 17 -18 megs per second on the UHS-1 card in my S3. While that is not full 30, it's still faster than a class 10. So it's not as fast as it could be, it's still the fastest out there.
How did you perform the test/what app did you use??
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Old July 11th, 2012, 02:31 PM   #23 (permalink)
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Quote:
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How did you perform the test/what app did you use??
I used my PC to transfer the files. But I believe there is a program called SD tools that would do what you are looking for.
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Old July 11th, 2012, 05:27 PM   #24 (permalink)
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SD Tools doesn't seem to work on the S3 for some strange reason...
I estimated the read speed from my UHS-1 card by copying a 100MB file from the phone to the PC and got about 8MB/Sec...! Mind you it (the S3) is a SGH-T999V north american model...don't know if there differences between the different models...
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Old July 11th, 2012, 07:38 PM   #25 (permalink)
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Quote:
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SD Tools doesn't seem to work on the S3 for some strange reason...
I estimated the read speed from my UHS-1 card by copying a 100MB file from the phone to the PC and got about 8MB/Sec...! Mind you it (the S3) is a SGH-T999V north american model...don't know if there differences between the different models...
I wrote to the developer of SD Tools this past weekend because I kept getting error messages when trying to read my UHS-1 64 GB card. I mentioned that I didn't know if it was because it is an SDXC card, or the class or size, but that it wasn't working. He wrote back to me saying that he is planning on updating the app within the next month or so. I'm curious to see what kind of readings I can get if/when he gets the app updated.
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Old July 12th, 2012, 11:22 AM   #26 (permalink)
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I wrote to the developer of SD Tools this past weekend because I kept getting error messages when trying to read my UHS-1 64 GB card. I mentioned that I didn't know if it was because it is an SDXC card, or the class or size, but that it wasn't working. He wrote back to me saying that he is planning on updating the app within the next month or so. I'm curious to see what kind of readings I can get if/when he gets the app updated.
I guess those are good news. I really want to know if the results I'm getting are normal, or if I just have a bad card...I just don't get why I'm not getting more than 8-9MB/sec read out of this card, in whichever device I plug it into...
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Old November 21st, 2012, 03:39 PM   #27 (permalink)
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Pretty good price on a Class 10 SD Card..

www. newegg. com/Product/ProductList.aspx?Submit=ENE&DEPA=0&Order=BESTMATCH &N=100017203&isNodeId=1&Description=microsd+64gb+c lass+10&x=21&y=15

Only thing with using UHS-1, you need to make sure that your phone is compatible with this specific technology. It will work, nonetheless. However, if it isn't compatible with your device, then your device will register it as an SD card of a lower class and you will not get your money's worth as far as performance goes.

EDIT:
As a first time user, I cannot display links or images, so if you are viewing the link, make sure to remove the spaces between "www. newegg." and "neweg. com"
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