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Hi, sorry if this is a double post. I did look around but could not find much info.
I'm interested to know how well the new 16GB MicroSD cards work on the Xperia. Anyone using one of these? My main concern is that they all seem to only be class 2 atm. Is this too slow to run apps and my videos stored on it etc?
Should I wait till a class 4 16GB card comes out?
Thanks
Edit: I also noticed that SanDisk has a “Mobile Ultra” memory card range. Only up to 8GB though. Anyone using one of these? Is there a big difference in speeds?
i don't think it matters in a phone.
I ordered the eact same Mobile Ultra card today. Should be here saturday, so I will tell when I get it. But assuming it's Class 6 card, it should be fast. I wouldn't go with Class 2, since it's slow. But as Jabe says, it might not matter on the phone.
So as at now no one's using a 16GB yet?
Give me a week or 2. I'm planning on ordering the Sandisk one.
Sandisk Mobile Ultra is good, and it's what I am using for X1. Since it's class 6, the read/write speed is about 20/16 mb/s, which is much faster than class 2. If you wanna watch video storaged in card, this one is your first choice.
wdq30 said:
Sandisk Mobile Ultra is good, and it's what I am using for X1. Since it's class 6, the read/write speed is about 20/16 mb/s, which is much faster than class 2. If you wanna watch video storaged in card, this one is your first choice.
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Click to collapse
Note that the speed in the end is depending on the host itself. If the host is slow, even if you use class 6 memory card, it's not going to make any difference. Personally I believe the phone itself would be the bottleneck and not the memory card.
I know it's not totally relevant but just for reference, take a look at the link below. As you can see the speed of class 2 and 6 are pretty identical as it's limited by the host. This is even with a dedicated memory card reader. Compare the 2nd and 4th entries from the bottom.
http://www.robgalbraith.com/bins/reader_report_multi_page.asp?cid=6007-9438
VaThInK said:
Note that the speed in the end is depending on the host itself. If the host is slow, even if you use class 6 memory card, it's not going to make any difference. Personally I believe the phone itself would be the bottleneck and not the memory card.
I know it's not totally relevant but just for reference, take a look at the link below. As you can see the speed of class 2 and 6 are pretty identical as it's limited by the host. This is even with a dedicated memory card reader. Compare the 2nd and 4th entries from the bottom.
http://www.robgalbraith.com/bins/reader_report_multi_page.asp?cid=6007-9438
Click to expand...
Click to collapse
If that's the case, what's the optimal speed supported by X1?
So anyone able to compare the 2 classes
ipporek said:
So as at now no one's using a 16GB yet?
Click to expand...
Click to collapse
I'm using a 16GB Class 2 at the moment. No probs with apps or music. But I have no videos on the card...
with normal sd cards the pdas were mostly not able to transfer as fast as the sd card supported
as the sd interface in onchip and not that fast
would like to see some tests if the same hold true with newer pda's and class X microSD cards
anyone able to follow this up yet?
I'm using a Sandisk 8gb Class 4 HC. No problems with speed or data read/write (on the phone itself).
Using the phone as a disk drive though (not activesync) is noticeably slower than using a USB adapter, *suggesting* the phone itself is the bottleneck?
I'm using a SanDisk 8GB Class II Card and I had no problems with photos, videos or music so far.
Don't think a Class 4 or 6 is worth the price in a mobile phone.
I got my 16GB Microsdhc today. And everything works. Sad thing is it only shows 15GB.
I find no difference in speed between my 8G class 6 and 16G class 2 (both from Sandisk)
xmoo said:
I got my 16GB Microsdhc today. And everything works. Sad thing is it only shows 15GB.
Click to expand...
Click to collapse
it's 15G probably because of the way how "G" is being calculated. 16,000,000,000 = 16,000,000,000/(1024*1024*1024) = 14.9GB
im using a 8g class 4 card, music, apps and vids work great.
just a quick question, the x1 has a sd card limit of 32g, when a larger card comes out like the 128gb card that sandisk has said will come out, could windows mobile have a update so that it can read it or is limited to the reader hardware inside the x1
I have 2 cards: Sandisk 16GB Class 2 and Kingston 8GB class 4.
I use Sandisk in Xperia, and the speed is more than sufficient. It reaches 12-15 MB/s writing on USB adapter. Reading - it's no problem reaching even more. So it's ok, speed wise.
I don't think you would need more speed in Xperia )
There's no HD video recording option in there )
one can use pocket mechanics to benchmark the sdcard speed
if the results are lower i would suspect it show the bottleneck speed
of the sd interface of the qualcomm cpu in x1
I have a 16gb micro sdhc and some .avi videos lag (highish quality). Specifically, top gear season 12 episodes from finalgear.com. it might be the divx client though, Im using the WM 6 Pro version available on the divx website.
Does Jade support "Sandisk Mobile Ultra 8 GB Class 6"?
or any brand with Class 6?
Yes. I use the Sandisk 8 GB class 6.
How about '"Sandisk Mobile Ultra 16 GB Class 6"? Anyone have try?
i heard it supports up to 16 GB SanDisk,
but i actually i tried the 4 GB one and it is Excellent
The SanDisk Mobile Ultra microSDHC 8GB, Class 6 (SDSDQY-8192) does not work with my htc touch 3g (german standard rom).
The Transcend microSDHC 8GB, Class 6 (TS8GUSDHC6) works great.
What does "Mobile Ultra" mean?
It's just a model name or something else?
Pom-AWD said:
What does "Mobile Ultra" mean?
It's just a model name or something else?
Click to expand...
Click to collapse
I think it is a Class 6 model..... as I didn't see Class6 in other series of Sandisk. What do you think?
I mean this model:
http://www.sandisk.com/Products/Ite...M-SanDisk_Mobile_Ultra_microSDHC_8GBCard.aspx
u995
I use ultra mobile 8GB class 6 Sandisk. Work perfectly fine.
Best result is actually 4GB or less. This is because the reading speed will be faster with a smaller capacity, esp when accessing MP4 video.
Writing speed will only be useful when u transfer file straight from PC.
GACL212004 said:
I use ultra mobile 8GB class 6 Sandisk. Work perfectly fine.
Best result is actually 4GB or less. This is because the reading speed will be faster with a smaller capacity, esp when accessing MP4 video.
Writing speed will only be useful when u transfer file straight from PC.
Click to expand...
Click to collapse
I'm going to buy 1 of 8Gb., if u say smaller size will better speed, how about devide it to 2 partition? we'll getting better speed than 1 partition of 8gb. ?
For that, I have no idea how to do that.
I even thought of defrag the content within SD card but was advised by the technical support that it will shorten the lifespan, and speed difference is very small. I did use 1GB card and it is way faster in say kick start a WMA file (about 9MB for one of them) or a mp4 video file at about 15MB.
You may wish to contact Vector Magnetics P/L, technical support on SD card.
Call Tel: 6338 0129 and ask for Rank. He might able to help you on card issue.
Hope the above helps
at least 8 bg but im mainly looking for speed. anyone know of the fastest micro sd brand out there. if found that judging by class alone doesn't mean much. im looking for read/write speeds.
I just purchased this: http://www.newegg.com/Product/Produ...&cm_mmc=TEMC-RMA-Approvel-_-Content-_-text-_-
16GB class 10...i will report back once i receive it tomorrow.
What you'll find is that the higher end cards are faster than the phone interface so the only benefit is when you're loading files on a PC. I'm running a 16 GB Sandisk Class 2 card and it works great.
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Sent via the XDA Tapatalk App
Then how fast would be the evo's interface to the sd card? Would it be capable of utilizing a class 10 micro SHDC?
I have a transcend 8gb class 6. I got it for 14 bucks on amazon and I do get the 6m/s transfer speed. Im waiting for a 32gb that is reasonably priced.
I'm sorry to report that I've returned the Kingston Class 4 32Gb microSD card for its failure to perform.
Performance writing to this Kingston card (from a desktop PC, card in either the N1, or the PC's card reader) was ~820KB/Sec
Writing the same data files to a Sandisk Class 2 16Gb card I achieved > 1.5MB/sec - i.e. approx twice as fast.
(PC is Acer Quad core 2.6Ghz jobbie with 8Gb RAM running Windows 7)
I found it really hard to get 4MB/sec out of the Kingston card - and only achieved it with 1 of the test options on CrystalMark. (write 1Gb sequential files)
When I tried this test with the 16Gb Sandisk class 2 card I got 10MB/sec. Clearly the SanDisk isn't a class 10 card - so I'm guessing the Crystal benchmark test isn't completely appropriate for SD card writers!.
I supplied Kingston with the packaging details / photos etc and they confirmed that it IS a real Kingston class 4 card. They agreed that performance should be better. LamndaTek clearly agreed too - after they received my return and tested it they gave me a full refund. (32Gb £83.66 (Inc VAT)). (Many thanks guys)
I guess the card was faulty.. but I might just be placing my trust in Sandisk now, as I've never had any problems with their cards.
I just thought that you all should know..
Graham
did you test it with a card adaptor or from the nexus one?
Also, if you're writing hundreds of small files vs one large file it makes a difference.
I think it was just a defective card.
Even the POS 32Gb cards floating around out there write at faster than 800kb/sec mb/sec.
SanDisk suck!
I will never buy any sandisk flash,sd card, micro again.. they have the worst CS i have ever delt with.. THey stand on their High Horse thinking their **** dont stink just because they said they only have a 1% defective rate.. which is crap if you ask me.. i went through some many defective flash drives used as keeping files on them and music to play in my scion xb.. So pretty much they told me i was mis using the device.. so i told them i would never buy from them..
so Kingston all the way now. they have the best CS i have ever delt with.. good day!
mynameisjon said:
did you test it with a card adaptor or from the nexus one?
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Click to collapse
I tested it with both options - the supplied adaptor - and also in the Nexus 1 - couldn't get it faster that I quoted, in any combination. Even tried a reformat - still no good.
Also, if you're writing hundreds of small files vs one large file it makes a difference.
Click to expand...
Click to collapse
It was a mixture of file sizes for the main copy, i.e. the contents of the 16Gb drive over to the 32Gb drive. About 14Gb were music files which come in at about 4Mb each.
As the other guys said above Kingston customer services were very responsive once they identified the card as genuine.. but LambdaTek were even more so.
I've still never had a Sandisk product give me an error though (I have 3 cards from them)
G.
I've used SanDisk for years without issue. Also been extremely happy with Lexar. Kingston, on the other hand, has been a complete letdown to me! A couple years ago, I bought a 4gb class 6 Kingston card for my digital camera. I didn't run any controlled benchmarks, but real-world use showed only about 2-3mb/sec transfer rates, which I thought was kind of slow. Also, as I was using a card reader instead of just plugging my camera in every time I needed to move pictures, the card was constantly being moved between devices. This proved fatal to the card, as the cheap plastic began to come apart. Never ever have I seen that happen to *any* SD card, even the cheap no-name ones! It started with the little tabs between each of the contacts, but didn't take long before the top and bottom of the card had begun to split. After a few months, the Kingston card was no good - all because of a disappointing casing. I wasn't rough with the card - I didn't treat this card any differently than others. In fact, I still have a 64mb SanDisk card from several years ago that's still going strong (great for sharing some jpgs, docs, etc.) So it might be worthwhile staying away from Kingston altogether...
Brands I've been happy with:
SanDisk
Lexar
Duracell
Transcend
Brands I've been disappointed with:
Kingston
so what is the deal with the N1 and its SD card speed?
i have a Transcend 8gb Class 6 card, i bought it for my G1 and recently got a N1.
on my G1 i would get an as expected 6 mb/sec or better copying files to/from it. in the N1 its never much more than 2mb/sec at most. this is apparently just when copying files via usb though
i just ran the app j bench mark 1.0.
when set to 10mb (2kb buffer) the default and lowest test setting i get
1.5mb sec write 2.5mb sec read
when set to 100mb (8km buffer) i get
6.16 mb/sec write
10.34 mb/sec read
so clearly internally the phone can and does handle the card at full speed but connected to PC's it does not.
and before anyone says it yeah i know just use a card reader to transfer large files.. whatever shouldn't need to do that imho
(megabytes not bits i am quoting here, i know the difference)
I have sandisk 16gb class 2 and under android 2.2 I gоt 1.5 mb/s and under android 2.1 I gоt 7-8 mb/s
gf_gollum said:
I'm sorry to report that I've returned the Kingston Class 4 32Gb microSD card for its failure to perform.
Performance writing to this Kingston card (from a desktop PC, card in either the N1, or the PC's card reader) was ~820KB/Sec
Writing the same data files to a Sandisk Class 2 16Gb card I achieved > 1.5MB/sec - i.e. approx twice as fast.
(PC is Acer Quad core 2.6Ghz jobbie with 8Gb RAM running Windows 7)
I found it really hard to get 4MB/sec out of the Kingston card - and only achieved it with 1 of the test options on CrystalMark. (write 1Gb sequential files)
When I tried this test with the 16Gb Sandisk class 2 card I got 10MB/sec. Clearly the SanDisk isn't a class 10 card - so I'm guessing the Crystal benchmark test isn't completely appropriate for SD card writers!.
I supplied Kingston with the packaging details / photos etc and they confirmed that it IS a real Kingston class 4 card. They agreed that performance should be better. LamndaTek clearly agreed too - after they received my return and tested it they gave me a full refund. (32Gb £83.66 (Inc VAT)). (Many thanks guys)
I guess the card was faulty.. but I might just be placing my trust in Sandisk now, as I've never had any problems with their cards.
I just thought that you all should know..
Graham
Click to expand...
Click to collapse
Had the same problem... RMA'd it with newegg and the replacement comes in tomorrow... I hold out hope.
Sandisk more me, no problem so far
My replacement Kingston class 4 holds out class 2 speeds on write of large files, less than that on write of small files. Blazingly slow on write, but faster on read than my class 6 8gb sandisk...
All in all... I can live with it for now...
The article below is an interesting read regarding Kingston and the sdcard market in general.
http://www.bunniestudios.com/blog/?p=918
I ran some tests on two different usb cables, and the supplied USB device from Lexar that came with this card using Crystal Disk Mark 3.0.1
I setup CDM as follows:
1. 5 reiterations of 100mb for testing.
2. The same USB port on my PC was used for all tests. This was a powered USB hub.
3. The two wire tests were with the card in the X10a running SE 2.1 update-1
4. The third test was done with the card in the Lexar usb device that came with the card in the same port that the wires were connected. Sorry that the drive letter changed.
One cable was a Belkin retractable cable, with thin flat wires, not shielded, no ferrite core, cost about $5.
One cable was the SE-OEM cable, with thick rubber cover, possibly shielding around cable and a ferrite core.
Look at the cable tests, sometimes the cheap Belkin was just as fast writing as the OEM; I think it's within the margin of error, for the test. I don't want to burn out my cards with hundreds of tests to work out the variation. What it really shows is that the cards will transfer. read/write better outside the phone - but you knew that already.
The Kingston class 4 32G was put into the Lexar usb holder rather than the usb holder that came with it for the test. Read speed is surprising isn't it? But the Kingston is much slower in the write and doesn't perform as well when installed in the X10a than the external test. Also the Kingston is 95% full, not as empty as the Lexar since I use it to play some of the 4500 songs on it in the car. This MAY have a bearing on the write tests, but there's at least a Gig of open space, and the test was only 100mb.
Here's a surprise, the Sony 8G Class 4 card that came with the phone, just as good as a class 10! Put into the Lexar reader, too.
hmm, interesting, thanks for posting your findings!
Furthermore, now the ROMs have the SD Card Speed Boost mod.
Eugene1991 said:
Furthermore, now the ROMs have the SD Card Speed Boost mod.
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Click to collapse
I have that, it's significant for read speeds, but it's not in place when the SD card is a mount point on another computer; the SD card can't be used by the phone. So if you have apps or icons (as I do) on the SD card, when I mount it, the running apps can't locate the needed icons for the home screen, etc.
The kingston class 4 32G is on sale this weekend at Newegg.com for $70 USD.
http://www.newegg.com/Product/Product.aspx?Item=N82E16820139391
I read bad things about the Lexar, data corruption and write speeds 10MB/s.
Because of that I bought the Patriot 32GB Class 10, which writes @ 10.5MB/s in my phone.
Bad thing is that the Patriot costs around 10€ more.
Sent from my X10i using XDA Premium App
Flo95 said:
I read bad things about the Lexar, data corruption and write speeds 10MB/s.
Because of that I bought the Patriot 32GB Class 10, which writes @ 10.5MB/s in my phone.
Bad thing is that the Patriot costs around 10€ more.
Click to expand...
Click to collapse
I have a Lexar 32G Class 10 as well as the Kingston 32G Class 4. The Lexar write speeds are fantastic, and I don't feel any lag like I do with the Kingston. and in some months of use, I've had no problems or errors. I keep most stuff pretty matched between the two, but have all my music on the Kingston which is on that tiny usb reader in the photo of the unit. It's a 'charm' on on my keychain. Nothing like having 32 extra gig handy.
Every time I write this stuff, I remember the first commercial computer I programmed on - outside of college; the hard drive was as big as a tire and 256mb. It only had 48K of memory (but you could program as if it had 64K) and 32 people could work on it at the same time. No one thought at the time that anyone a) needed 32G or that it would b) be the size of a thumbnail.
stan.s said:
I have a Lexar 32G Class 10 as well as the Kingston 32G Class 4. The Lexar write speeds are fantastic, and I don't feel any lag like I do with the Kingston. and in some months of use, I've had no problems or errors. I keep most stuff pretty matched between the two, but have all my music on the Kingston which is on that tiny usb reader in the photo of the unit. It's a 'charm' on on my keychain. Nothing like having 32 extra gig handy.
Every time I write this stuff, I remember the first commercial computer I programmed on - outside of college; the hard drive was as big as a tire and 256mb. It only had 48K of memory (but you could program as if it had 64K) and 32 people could work on it at the same time. No one thought at the time that anyone a) needed 32G or that it would b) be the size of a thumbnail.
Click to expand...
Click to collapse
Reminds me of those old HP systems that needed a clean room.
My dad played dungeons while doing chemical analysis.
Then we got a 486 and he was all freaked out when i opened the case.
I tested 32GB lexar class6 and got very very similar results on my x10.
OmegaRED^ said:
Reminds me of those old HP systems that needed a clean room.
My dad played dungeons while doing chemical analysis.
Then we got a 486 and he was all freaked out when i opened the case.
I tested 32GB lexar class6 and got very very similar results on my x10.
Click to expand...
Click to collapse
Class 6?
Star Trek w the. 'Kirk add Kirk ' option so you didn't have to calculate the math to fire the photon torpedoes. Played on a teletype connected to the mainframe.
Sent from my X10a using XDA Premium App
stan.s said:
Class 6?
Star Trek w the. 'Kirk add Kirk ' option so you didn't have to calculate the math to fire the photon torpedoes. Played on a teletype connected to the mainframe.
Sent from my X10a using XDA Premium App
Click to expand...
Click to collapse
Sorry, My bad it's a 16 GB.
Why the hell did i type 32GB.