Today i received a 64gb Samsung pro micro sd cats i had purchased from amazon http://www.amazon.co.uk/dp/B00KRDHRMO/ref=twister_B00K19DH6E?_encoding=UTF8&psc=1 however upon benchmarking it with A1 SD bench app i noticed i got lower numbers than i did with my 64gb evo card which was around half the price and advertised with lower speeds.
I consistently got around 38mb read and 20-21mb write on the evo however with the pro i am getting around 34mb read and 20-21mb write. I have seen others on here get 70+mb read and around 60mb write with the same micro sd benchmarked with the same app.
Anyone got any idea of what's going on?
Need some advice guys, i need to know what's up with the micro sd before i call Amazon and accuse them of sending me a fake or faulty card
I don't know what is going on with your micro SD card. All I can offer you is my story. I bought a Samsung 64 GB Pro microSD from Wal-Mart and it was DOA. Returned it and bought one from Best Buy which worked 100%.
I know sometimes there's just a defective item, but here's what I noticed about the differences in packaging:
1. With the item I bought from Best Buy, the main graphic at the top of the package was in a brilliant blue color. The main image on the Wal-Mart item was greyscale.
2. The blurb on the front of the package stating how fast the read/write speeds on the Wal-Mart package was twice as large as the font on the item I bought from Best Buy.
I don't know if Samsung uses different packaging to differentiate selling through different stores/channels or if Wal-Mart got a batch of counterfeit product. I don't know if this story applies to your situation or not, but I need to buy a new card for a new tablet showing up in a few days & for sure I won't be buying it at Wal-Mart.
Dark_Vortex said:
I don't know what is going on with your micro SD card. All I can offer you is my story. I bought a Samsung 64 GB Pro microSD from Wal-Mart and it was DOA. Returned it and bought one from Best Buy which worked 100%.
I know sometimes there's just a defective item, but here's what I noticed about the differences in packaging:
1. With the item I bought from Best Buy, the main graphic at the top of the package was in a brilliant blue color. The main image on the Wal-Mart item was greyscale.
2. The blurb on the front of the package stating how fast the read/write speeds on the Wal-Mart package was twice as large as the font on the item I bought from Best Buy.
I don't know if Samsung uses different packaging to differentiate selling through different stores/channels or if Wal-Mart got a batch of counterfeit product. I don't know if this story applies to your situation or not, but I need to buy a new card for a new tablet showing up in a few days & for sure I won't be buying it at Wal-Mart.
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My sd card came in Amazon's frustration free packaging so i am unable to check if the packaging matched your micro sd from best buy, it's troubling that there are so many fake micro sd cards around.
Have you ran a benchmark on your phone/tablet using the a1 sd app? It would be interesting to know what you're getting as i can't seem to get higher than 34-35mb read and 21mb write despite it being advertised as 90mb read and 80mb write, i know I'm unlikely to ever reach those numbers but i was expecting more than what I'm currently getting.
Sent from my XT1032 using XDA Free mobile app
fedor12 said:
Have you ran a benchmark on your phone/tablet using the a1 sd app? It would be interesting to know what you're getting as i can't seem to get higher than 34-35mb read and 21mb write despite it being advertised as 90mb read and 80mb write, i know I'm unlikely to ever reach those numbers but i was expecting more than what I'm currently getting.
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I ran the A1 SD app on both my Galaxy Tab Pro 8.4 and my Galaxy S5 which both have Samsung Pro SD cards and didn't achieve much higher benchmarks than you did. This is because of the limitations of the SD controller chip in nearly all phones and tablets. These devices don't need those kinds of speeds that are the upper end of these Pro cards. You'll need something like a high-end DSLR camera if you wish to take full advantage of these cards.
I saw some of the posted results on the community page for A1 and a lot of those high results look suspect. I only bought the Pro cards myself because they weren't much more than the Evo ones and I may use them in a high speed device someday. My main attraction to Samsung SD cards was that they are water-proof, X-Ray-proof, and magnetic-proof.
Bottom line, I don't think there's anything wrong with the Pro card you bought, but you didn't gain any speed benefits upgrading from your Evo card due to hardware limitations of your device(s).
Dark_Vortex said:
I ran the A1 SD app on both my Galaxy Tab Pro 8.4 and my Galaxy S5 which both have Samsung Pro SD cards and didn't achieve much higher benchmarks than you did. This is because of the limitations of the SD controller chip in nearly all phones and tablets. These devices don't need those kinds of speeds that are the upper end of these Pro cards. You'll need something like a high-end DSLR camera if you wish to take full advantage of these cards.
I saw some of the posted results on the community page for A1 and a lot of those high results look suspect. I only bought the Pro cards myself because they weren't much more than the Evo ones and I may use them in a high speed device someday. My main attraction to Samsung SD cards was that they are water-proof, X-Ray-proof, and magnetic-proof.
Bottom line, I don't think there's anything wrong with the Pro card you bought, but you didn't gain any speed benefits upgrading from your Evo card due to hardware limitations of your device(s).
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Well that sucks, i mainly purchased it for my tablet and will most likely never use it in anything else (other than maybe a phone) but the pro cost me twice the price of the evo.
Is it possible that the benchmark results we are getting with the a1 app are false? I ask because if they are accurate then the cheaper evo card is actually faster, 10 out of 10 times the evo consistently gave me higher results which doesn't really make sense even if the phone/tablet was limiting it, surely it should have been at least the same speed?
If the app and the pro card i received isn't to blame then i think people should know the evo performs better on their phones and tablets.
Sent from my XT1032 using XDA Free mobile app
Related
Hi all,
I have the 10.1 2014 tab pro and I want to get a new SD card. I know from my brief reading through these forums that not all SD cards will work and I dont know enough to really understand what is what (like what does "SDHC Tf Class 10" mean?). If anyone knows what it is that I need to look for before buying one so that it will work fine with my tablet please post here.
ps I am using these primarily to store books and documents, not videos or games or anything that really takes a massive workload or speed requirement.
pps Im not sure if this matters, but I am running stock unrooted
TIA
Most any newly purchased MicroSD card should do. What did you read won't work? Below Class 10 cards might not work for some high speed functions (like video), but I believe all should work for casual use like you describe.
SDHC versus SDXC mainly refers to the capacity of the card, which you are probably going to be looking at separately (in GB) anyway, so it really doesn't matter. Basically, the original SD standard (also called SDSC) was limited to 2 (4?) GB. SDHC increased the capacity up to 32 GB, and anything higher than that is SDXC by definition. There are some other minor differences, but probably nothing you really need to worry much about.
Class (8, 10, etc.) refers to the read/write speed; but you may also see a UHS speed classification (U1, U3) also. Even though you are not talking about high speed demand tasks, I'd still tend toward Class 10 or U1 cards. Just in case you change your mind about what you want to save to the card; and many cards meet Class 10 or U1, anyway. For the few cards that you can find with lower speed class, you might save $10, so its probably not even worth it to consider lower speed class cards.
The following Wiki articles goes into a lot more detail about the specs: http://en.wikipedia.org/wiki/Secure_Digital
Out of all this, I'd be more worried about brand, or getting a counterfeit product. Some cheap or off-brand cards seem to fail more frequently than the big names. Folks all have their favorites, and may argue that you are just paying more for the brand. But I've bought several Sandisk cards, and never had any issues (and heard similar from other users on XDA).
I'd also stick to a reputable seller (Newegg, Amazon, etc.) as places like eBay are awash with counterfeit SD cards. Its so easy to relabel a card as a higher capacity (i. e. take a 32 GB card and label it as 128 GB, etc.) and even spoof the device to read it as the "fake" capacity, than charge much more $$$.
I am using one of these on my TabPRO:
http://www.amazon.co.uk/Samsung-MicroSDHC-Memory-without-adapter/dp/B00AYC6V2U
Works fine on all my Android devices.
And to really leverage it outside of Google Apps and pre-installed items you need to root and enable write to the SD card, unfortunately. (Unless I'm missing something.)
Thanks, I really appreciate that info on what all those terms mean. However, right now I am using a 32gb Sandisk ultra, and my data keeps getting corrupted, apps cant find it, showing up empty on every file explorer I try.... Therefore I thought since Sandisk is legit (I bought it at costco so its real Sandisk) I figured there must be some issue with the type of card.
pie_are_squared said:
Thanks, I really appreciate that info on what all those terms mean. However, right now I am using a 32gb Sandisk ultra, and my data keeps getting corrupted, apps cant find it, showing up empty on every file explorer I try.... Therefore I thought since Sandisk is legit (I bought it at costco so its real Sandisk) I figured there must be some issue with the type of card.
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I had similar issues with a genuine SanDisk card in my S3 (couldn't access it in recovery either), just showed a bunch random characters instead of file names etc), swapped it to a different brand (I got a genuine Sammy one because it was a bargain at the time) and that solved the problem....
Hey everybody ...
Quick question: which is better ... SanDisk Ultra 128GB or the Samsung 128GB EVO?
I've been deciding for days, but I still can't make up my mind.
I want something that lasts long and is fast.
Samsung is samsung, especially with the tablet ... and sandisk is also reputable but has that 10 year warranty.
Please help. Thanks!
dyiddo said:
Hey everybody ...
Quick question: which is better ... SanDisk Ultra 128GB or the Samsung 128GB EVO?
I've been deciding for days, but I still can't make up my mind.
I want something that lasts long and is fast.
Samsung is samsung, especially with the tablet ... and sandisk is also reputable but has that 10 year warranty.
Please help. Thanks!
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Click to collapse
I would go with the Samsung since there have been reports lately of bad SanDisk cards. Realize though that one has sold millions more units than the other so the likelihood of failure is greater for SanDisk anyway.
If you want the fastest possible though you may want to step down to 64gb card and get one with the highest write rating like a SanDisk Extreme Pro.
The experiences vary. I've never had a single Sandisk card break, out of the 40ish Ive used since 2001.
I've had 4 Samsung cards (2x32 2x64) and they all broke in 4 months.
My 128GB Sandisk is still doing great.
Sent From My Samsung Galaxy Note 3 N9005 Using Tapatalk
muzzy996 said:
I would go with the Samsung since there have been reports lately of bad SanDisk cards. Realize though that one has sold millions more units than the other so the likelihood of failure is greater for SanDisk anyway.
If you want the fastest possible though you may want to step down to 64gb card and get one with the highest write rating like a SanDisk Extreme Pro.
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I think I really need the 128 gb size. I never read comics before, and the note pro got me into it ... so now I have like 15gb of comics. lol. Plus, then I'm gonna add vids and music. So it might be prudent for me to just fork out the money for a bigger card.
And the other thing ... I kinda wana go with samsung too but sandisk has a brilliant 10 yr warranty!. Samsung has like a 2 year. So that's confusing.
Everything I've seen says the tablet can only utilize 64gb cards or smaller...? Would love to buy a 128gb if that will work though, can anyone confirm?
http://www.samsung.com/global/microsite/galaxynotepro12.2/spec.html
http://www.gsmarena.com/samsung_galaxy_note_pro_12_2_lte-5945.php
911jason said:
Everything I've seen says the tablet can only utilize 64gb cards or smaller...? Would love to buy a 128gb if that will work though, can anyone confirm?
http://www.samsung.com/global/microsite/galaxynotepro12.2/spec.html
http://www.gsmarena.com/samsung_galaxy_note_pro_12_2_lte-5945.php
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The card size listed in the specs is based upon what is, at that moment, available on the public market. At the time of the release of the NotePro, 64GB was the largest MicroSD size available. This does not in any way refer to an actual size limit of the cards, it's just that Samsung had no means to see if a 128GB card worked or no, as they didn't exist outside Sandisk's lab.
128GB works as normal, I've been using one for months. (Sandisk).
In fact, the 128GB works fine even on something as old as an S3.
I am looking to buy a MicroSD card - 64Gb or 128Gb (if the price is right) and am looking for recommendations. I had purchased a cheap, generic 64Gb card., which worked fine out of box. Within a month it began to have errors and finally failed.
My goal is to use this as media storage - books and comics mostly. So speed is not an essential requirement.
Anyone have any suggestions?
I've been using this Samsung Evo Class 64GB Micro SDXC Card since the tablet was released. It seems to have decent speed and I haven't had any problems with it yet. There's also the Pro version for an extra $20 that apparently does 90 MB/s.
MidgetMob said:
I've been using this Samsung Evo Class 64GB Micro SDXC Card since the tablet was released. It seems to have decent speed and I haven't had any problems with it yet. There's also the Pro version for an extra $20 that apparently does 90 MB/s.
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Thanks, @MidgetMob, that seems to be the way to go. Grateful for your advice.
Just ordered the 64gb Evo Pro.
koop1955 said:
I am looking to buy a MicroSD card - 64Gb or 128Gb (if the price is right) and am looking for recommendations. I had purchased a cheap, generic 64Gb card., which worked fine out of box. Within a month it began to have errors and finally failed.
My goal is to use this as media storage - books and comics mostly. So speed is not an essential requirement.
Anyone have any suggestions?
Click to expand...
Click to collapse
By and far, the 64GB G.SKILL microSD is one of the best out there, with amazing speeds, a stellar lifetime warranty, and a ridiculously low price ($24 for the next 72 Hours). You will never have to worry about your card failing since it will be replaced even if it fails five years from now. And it absolutely blows the EVO out of the water in terms of speed. Testing with A1 SD Bench on my Shield Tablet, I'm getting 72.00MB/s Read & 38.64MB/s Write with mine. I store almost all the significantly large apps on the microSD.
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231652&cm_re=microsd-_-20-231-652-_-Product
aenews said:
By and far, the 64GB G.SKILL microSD is one of the best out there, with amazing speeds, a stellar lifetime warranty, and a ridiculously low price ($24 for the next 72 Hours). You will never have to worry about your card failing since it will be replaced even if it fails five years from now. And it absolutely blows the EVO out of the water in terms of speed. Testing with A1 SD Bench on my Shield Tablet, I'm getting 72.00MB/s Read & 38.64MB/s Write with mine. I store almost all the significantly large apps on the microSD.
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231652&cm_re=microsd-_-20-231-652-_-Product
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That's a nice price for 64GB. As for the warranty, the Evo is 5 years. Of course it's not as good as a lifetime warranty, however 5 years isn't bad either imo.
Reads and writes are quite nice, but how are the IOPS?
I did pick up and have been using a Samsung and it has worked fine. But at that price, I think that I will grab a G.Skill as well. (Can't have too much tech!)
Thanks, everyone!
MidgetMob said:
That's a nice price for 64GB. As for the warranty, the Evo is 5 years. Of course it's not as good as a lifetime warranty, however 5 years isn't bad either imo.
Reads and writes are quite nice, but how are the IOPS?
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Isn't MB/s to IOPS a straight conversion? Not sure about 4K Read/Writes since A1 doesn't include it in testing, and not sure what utility is best for testing on Ubuntu. And not sure if the card reader would provide reliable results given its age.
I'm testing copying over files to test write speeds. I copied over 3.92GB of files (4,214,000 Bytes) in 284 seconds from the internal storage to the G.SKILL (AVG: 14.15MB/s). There were probably slight lapses due to copying multiple files, however. Tried copying a single 429MB file (450,687,000 Bytes), and it took 19 seconds (AVG: 22.6MB/s).
Has anyone tried this I've being reading about the SDcard standard and also saw a picture of a Z Ultra showing in storage - settings - sdcard1 a 128GB card working (Don't know if it's true tough) so has anyone here tried that? is it true?
wanna buy one but wouldn't wanna waste my money...
manual says max 64GB
https://dl.developer.sonymobile.com/documentation/whitepapers/Xperia_Z_Ultra_LTE_C6833_WP_7.pdf
But its confirmed it supports even higher than that:
http://www.xperiablog.net/2014/04/0...xc-card-works-a-treat-in-sony-xperia-devices/
If in theory sdxc is fully supported then the controller should work with up to 2TB. But its yet to be tested by someone who willing to spend that money. Or someone who has one of these >256GB cards lying around.
That second link is one of the pages I was reading, I think I'll go ahead and buy one 128gb and if it doesn't work I'll sell it, will report how it works when I do.
Can confirm, I've been using a 128GB Sandisk card in my Z Ultra for the past couple of years. No problems at all.
PixyMisa said:
Can confirm, I've been using a 128GB Sandisk card in my Z Ultra for the past couple of years. No problems at all.
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I have had too a few years back. The SanDisk 128GB
Sweet!
I will get one and load it up!
What class are you guys using?
PamelaGirl said:
Sweet!
I will get one and load it up!
What class are you guys using?
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Class10 is old and all cards have this rating. There is even more complicated ratings coming up on new cards being sold.
I'm talking about V30, V40, V50 and so on. C even. Don't know what C stands for. Mostly to help prosumers and pros selecting when doing 4K.
Some facts here:
https://www.sdcard.org/consumers/choices/speed_class/index.html
At the moment I have a samsung pro 64GB U3: http://www.samsung.com/uk/memory-storage/pro-microsd-card-e/MB-MG64EEU/
Its fast but not impressive. I don't think any memory card matters for our old phone.
It was sale two for one so I got one for our new phone and one for mine.
But you should buy the fastest you can afford without breaking the bank by performance for dollar.
If the top performer cost $100 more than the cheaper but no performance boost. You get the idea. Buy the cheaper.
At the moment I am looking at the toshiba 128 U3.
I will buy four of these for my ipod classic making a total of 512GB storage.
Note that there are many new features that is coming up for SD cards. As I said not that they will benefit our old Z ultra.
But you can still buy one that has a new feature as long as the price is right.
These are the ones I will buy. The one that is cheapest at the time of purchase. Download the Aliexpress app..you often get 40~70% off THAT sale price.
https://www.aliexpress.com/item/TOS...-s-Micro-SD-Card-SDHC-I-32GB/32792169281.html
https://www.aliexpress.com/item/TOS...-Speed-MicroSD-Class10-Micro/32717634757.html
https://www.aliexpress.com/item/TOS...F-Trans-Flash-Card-SDHC-SDXC/32711230564.html
Samsung is a safe card. They are a bit expensive for what you get.
Sandisk is probably the best. But they are the most expensive. By performance for dollar.
A-DATA are good. But research if the specific batch is holding up. They tend to have some good and the other year bad and failing products. Same as with hard disks wd and seagate.
Some other exist but they are out of what I can get. They are more common in the us and asia. Like PNY, Transcend etc. So I cant comment on them.
Ol snap, SUPERUSER balling as usual!
That you for the additional info that will be much needed. I was interested in 128gb since the price has dropped over the years but now I see I need to keep my wallet closed until I put on my thinking cap!
Thank you very much friend!
Hey all. I know there are threads about the "best" microSD cards for the Shield Tablet here, but I'm wondering what cards people have been using with adaptive storage with Nougat.
I'm current using a 128GB SanDisk Ultra ave have been having a few issues with app icons not losing at boot (apps are on sd card) and some games lag a bit (BlazBlue RR - Real Action Game comes to mind). If I can find a better card for a good price, I might spend a day factory resetting and setting up the tablet again.
A SanDisk Ultra should have pretty legit 4k random speeds/IOPS.
The only other thing that comes to mind would be a high end Samsung. I think Amazons EVO select is the same card as a EVO plus if you want to save a couple bucks.
There is the new class of micro sd cards - A1.
https://www.sandisk.com/home/memory-cards/microsd-cards/extreme-microsd-a1
Dedicated for apps & adopted storage.
weedy2887 said:
A SanDisk Ultra should have pretty legit 4k random speeds/IOPS.
The only other thing that comes to mind would be a high end Samsung. I think Amazons EVO select is the same card as a EVO plus if you want to save a couple bucks.
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im using the SanDisk Extrem Pro 32GB
weedy2887 said:
A SanDisk Ultra should have pretty legit 4k random speeds/IOPS.
The only other thing that comes to mind would be a high end Samsung. I think Amazons EVO select is the same card as a EVO plus if you want to save a couple bucks.
Click to expand...
Click to collapse
one vote for samsung
I just went from a pretty standard micro SD card, to the samsung evo select (amazon brand) 100MB/s (U3) for around $50, 128 gig, and my load times for games are so much faster. I researched that the important thing for games/adaptable storage is the random I/O (read/write) times and samsung scored pretty high. But I play mostly rpg's so not sure if it lags, but overall I'd say it's close to internal storage speeds, maybe a little slower
As I said select is the same as plus, you bought one of the fastest card you can buy without getting into stupid expensive territory.