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[q] sd card speed matters

Hello All I have a very simple question but plays a very important role in performance.
I got a 2GB SD CARD FROM SAMSUNG.
I have another LOCAL SD CARD 4GB
My question is will the SPEED Remain same to transfer or access data from both these SD CARDS.
I mean to say is will the LOCAL SD CARD BE SLOWER(since its not samsung branded) IN ACCESSING AND RETRIEVING DATA which will eventually slow down my phone or something like that.
I hope you all understood my question..will elaborate if u want me to.
hoping for a good answer.
Thanks

so many views yet no replies
cumon guys a small opinion would make a big difference

I am not very knowledgeable about this, but the class of the SD card matters when comparing performance. Here is a link that might help:
http://www.sdcard.org/developers/tech/speed_class/

i have noticed that when i changed sd card from samsung original (came with phone) to new transcend 8gb sd card, phone is now booting for 5 minutes....

It being a samsung card doesn't make the card more "compatible" with a samsung phone. A card is defined by the card, not by the brand.

martin.jeremic said:
i have noticed that when i changed sd card from samsung original (came with phone) to new transcend 8gb sd card, phone is now booting for 5 minutes....
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yeah so it means that performance has degraded right.
Also i think booting is not much worry as its done from ROM
so apart from booting what else is buggy or degrading performance,comparing both 2 GB and 8 GB

its on a card to card basis, if it is slower for him it doesnt mean it will be slower for you.

You should use a Class 6 SD card. Slower cards are not adequate.
Sent from my GT-I5801 using XDA App

You can use a class 6 SD card, however, i do not think the phone is capable of handling such high speed cards, and thus the read/write speed of the phone will limit the speed.
Conclusively i don't think there will be an increase in performance!

SD Card Partitions

I have a Nook Color that is rooted running CyanogenMod 7.1.0 on internal memory. I have a 16GB Class 10 SD Card in it and was wondering what people are using for partitions on their SD Cards. I have pushed pretty much every app over to SD Card but some (not all) applications (Google Maps for instance) seem really sluggish and many times it force closes.
Is the Nook just not powerful enough to run Google Maps or is there something I need to adjust? Maybe a bigger swap partition? I set them up quite a while ago and don't recall what I set them to off the top of my head.
Using CyanogenMod I am overclocked to 1.2GHz with the Governor set to Performance.
VM heap size set to 48MB.
Thanks

class 10 cards are not as good as you'd think for any Android device. Android devices tend to write smaller files... a class 4 card (Sandisk recommended) is actually best for these devices.

DizzyDen said:
class 10 cards are not as good as you'd think for any Android device. Android devices tend to write smaller files... a class 4 card (Sandisk recommended) is actually best for these devices.
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I am mainly using Class 10 as that is what I had laying around in the Micro SD Card Format.
I have a 32 GB Class 4 in my Thunderbolt and it is fine. Do you really think it would slow it down much if it is Class 10? I could always toss it in an adapter and use it in my Canon T3i.

This thread here explains what the issue is and will tell you how to test your cards out to see if they'll work. Basically that Class10 card only gets Class 10 speeds when transferring large files and for small files (like an OS/app uses to write temp files) you get crap speed. it's not normally noticed in everyday use because the files are small and a little delay writing it isn't noticed by the user. Class 4 cards from SanDisk seem to be overall performers for files of all sizes.
- Aerlock

Aerlock said:
This thread here explains what the issue is and will tell you how to test your cards out to see if they'll work. Basically that Class10 card only gets Class 10 speeds when transferring large files and for small files (like an OS/app uses to write temp files) you get crap speed. it's not normally noticed in everyday use because the files are small and a little delay writing it isn't noticed by the user. Class 4 cards from SanDisk seem to be overall performers for files of all sizes.
- Aerlock
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Hmm, that is interesting. Now does it matter that I am booting off internal memory? I am not dual booted and have CyanogenMod on internal memory. I am running Google Maps which is one of the programs that is really slow on internal memory. My guess is that what you are saying would apply because of the swap space being used on the SD card. I will say that my wife also has a Nook Color that I put my old 8GB Class 6 card from my old Nexus One in and hers seems to perform a little faster than mine. I haven't done the tweaks to VM heap size to hers that seems to have helped mine a little. So you may be on to something. I have a couple of these class 10 cards that I use on my Camera and have been happy with them. I think they are Samsung. The DSLR is 18MP so those files are pretty big so it might be just better to leave those cards for use there and get a couple of those SanDisk Class 4 cards for our Nooks.

Yeah, running apps from the sd would benefit from a fast sd card. When you get one, use CrystalDiskMark (pc) to check the 4k read/write speeds. I bought an 8gb and two 16gb Sandisk class 4 cards from Radio Shack that have reasonable speeds and work well. They're all in the .5 range for writes - not as good as some I've heard of, but they work well! Some (a Kingston and a knockoff Sandisk) I tested were as low as .006! I tried to use the Kingston before I tested its speed and got lots of instability and FCs. hth
Sent from my CM9 NookColor using Tapatalk

SD Card Slot speeds

With black friday coming up, I'm looking for a large micro SD card. My main debate is through speed. I want the 128GB Sandisk microSD card, but it's capped to 30MB/s sequential reads, while the 64GB extreme goes up to 80MB/s. Can the tablet take advantage of those higher speeds? I want as little a difference between the internal memory and the external memory as possible. My only concern is 64GB may not be enough, as I download a metric ton of games, and I'm blowing through the internal memory. Basically, I'm asking for buying advice, and this is all very specific to the shield tablet. I have no other intended uses for the SD card.

I have a Samsung 64gb PRO up to 90mb/s and this is the result

Is that what the shield tablet is actually able to write at? If so, then it's worth it for the increased data loading in my games. That's my main concern. Also, how efficient is app2SD type transferring? I want to know if my SD card will be used effectively, or if I will still end up running out of storage space.

Nintonito said:
With black friday coming up, I'm looking for a large micro SD card. My main debate is through speed. I want the 128GB Sandisk microSD card, but it's capped to 30MB/s sequential reads, while the 64GB extreme goes up to 80MB/s. Can the tablet take advantage of those higher speeds? I want as little a difference between the internal memory and the external memory as possible. My only concern is 64GB may not be enough, as I download a metric ton of games, and I'm blowing through the internal memory. Basically, I'm asking for buying advice, and this is all very specific to the shield tablet. I have no other intended uses for the SD card.
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There's a new version of the 128gb that rated 48mb/s. But if you want faster card you can only get them in 64gb. Like the Samsung pro at 90mb/s.

aznmode said:
There's a new version of the 128gb that rated 48mb/s. But if you want faster card you can only get them in 64gb. Like the Samsung pro at 90mb/s.
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I'm afraid to ask how much this new 128GB model is. I can't justify spending $200 on a micro SD solely for tablet storage.

Nintonito said:
I'm afraid to ask how much this new 128GB model is. I can't justify spending $200 on a micro SD solely for tablet storage.
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I got one for my note 4 at $109. Might find good deals on black Friday
http://www.amazon.com/SanDisk-Memor...416866651&sr=1-1&keywords=128gb+micro+sd+card

Unfortunately this isn't available yet in canada

Mine is a Samsung 64gb UHS-1 pro, formatted with NTFS and 64gb cluster size:

Nintonito said:
Unfortunately this isn't available yet in canada
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I see. But I think even at 48mp/s, it's not gonna be the same as internal. If you want something close then the Samsung Pro 64gb with 90mb/s is your best bet. But you are only going to match the read speed. The internal memory's write speed is still faster by 2x. But I really doubt you're going to care about that much if you're just transferring 1-2gb of data to the sdcard. And I'm assuming these are game data? Once those are transferred, it's pretty much done with. Even with my 64gb card now with 11.73 mb/s write speed is plenty fast when I move files to the card. If there are game saves that needs to write to the card, they are gonna be small data. I have about 20 game data on the SD card using Folder Mount and I don't find any issue launching them. The only one that I noticed takes longer is Half Life.

Yeah that definitely sounds good. Faster the better. I want a seamless experience.

Does anyone have experience with PNY sd cards? I saw one for $110 that's a 128GB card with 40MB/s sequential read speeds. How would the card perform, ans would it be enough?

Personally I don't think the extra speed will make that big of a difference. Those benchmarks provide controlled and consistent circumstances which are not realistic. Almost nothing you do on the tablet in normal use will push the read speeds. Tbh write speeds could be more important, as they are typically much slower then write speeds. I'm not saying read speed doesn't matter, but that there is certainly a diminishing return on speeds.
Sent from my SHIELD Tablet using XDA Free mobile app

http://www.amazon.com/Lexar-High-Pe...id=1417018420&sr=8-6&keywords=128+gb+micro+sd
Currently that's the fastest 128 GB card I've found, but you're going to pay for it out the nose. I'd vote to wait a bit and see if you can swing it with at 64 GB UHS card first, like the Samsung Pro series. The faster the card the more seamless the experience will be, and even though use will not mimic the benchmark situation it's still going to take less time to write and read to a very fast card in daily use so it will make a difference for sure.

livinonnoslp said:
http://www.amazon.com/Lexar-High-Pe...id=1417018420&sr=8-6&keywords=128+gb+micro+sd
Currently that's the fastest 128 GB card I've found, but you're going to pay for it out the nose. I'd vote to wait a bit and see if you can swing it with at 64 GB UHS card first, like the Samsung Pro series. The faster the card the more seamless the experience will be, and even though use will not mimic the benchmark situation it's still going to take less time to write and read to a very fast card in daily use so it will make a difference for sure.
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What about if I simply want to use it to load up and watch videos? No gaming nothing else. Is a SanDisk 128GB microSDXC @ 30MB good enough for that? Like say, this one?
http://www.ebay.com/itm/SanDisk-128...05&prg=11353&rk=3&rkt=6&sd=151483862076&rt=nc

Yes that should be fine I just wouldn't put any apps on it at all only media

Thanks for your help guys. Ended up buying a Sandisk UHS-3 64GB card for $100. So far so good. Although android's sd card support for apps is SO BAD.

[Q] Which is the best SD card for Samsung galaxy Y for using link2sd without lag?

Hi,
I am a newbie . Got my first ever android (samsung galaxy Y 5360) the other day. Rooted it too . Found out my phone's got low internal storage memory. I want to increase my phone's internal memory by using link2sd (or any other better app if present) and loading apps from my microsd card. I am now trying to get a good sd card to do the needful.
What I wanted to know is which is the optimal sd card(not particular about brand) with its class number (4gb class 4, 8gb class 6, 16gb class 10, etc) that I can use so that I can get "the best performance" out of my "Galaxy Y."
I was going to go for a 16gb class 10 microsd card but upon using Google i saw in some places class 6 is better for small read writes like in the case of using link2sd app and that class 10 is better for transferring of big files (and making videos and stuff) and that there's going to be lag in class 10 cards of 16 gb and 32 gb, etc for my purpose. At some other places i saw that class 10 is always better no matter what. Or maybe i just misunderstood the whole thing.
For example for my above purpose, is an 8gb (or 16gb) class 6 card going to perform better than an 8gb(or 16gb) class 10 card
thank you

The higher the class the better the read/write speed
I had a 32gb class 10 and it worked fine - to be honest apart from transferring very large files (and fat32 doesn't support larger than 2gb file) you probably will not notice any difference

marcussmith2626 said:
The higher the class the better the read/write speed
I had a 32gb class 10 and it worked fine - to be honest apart from transferring very large files (and fat32 doesn't support larger than 2gb file) you probably will not notice any difference
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Thanks

[No Root] Sdcard as internal storage.

You can use your Sdcard as internal storage on all 6.0+ devices.
Refer to this video:
https://youtu.be/D64UNGaAUoI
Don't forget to press the thanks button!

one thing to keep in mind: you'll want a fast card if you're planning on doing this. my sandisk UHS-1 cards has a speed of 30MB/s and I find it almost unusably slow for internal memory. simple reading apps took 10-15 seconds to load, and operating within the app was equally frustrating. formatted it and i just use it as storage, so everyone is happy

No cards are fast enough yet to make it worth the hassles, for me anyway

aviwdoowks said:
No cards are fast enough yet to make it worth the hassles, for me anyway
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I'm using a combination card, 30gb adopted, 90gb external. It's a Samsung uhs1 card. Definitely slower response from heavier apps stored there, but it's nice to offload stuff that I use less frequently or that doesn't need a lot of speed (utilities, eBook readers, etc) to maximize onboard storage for the apps that need it. I dump media to the external portion so it is usable on other devices should I need to do so.

if you're interested in seamless performance, check out the new A1 series that SanDisk is producing. It conforms to the new standard that states it should be as fast as internal memory when used as adoptable storage. http://www.droid-life.com/2017/01/05/sandisks-new-256gb-a1-microsd-card-wants-apps/