Develop Bugs

MicroSD SDHC Class 4 or 8?

Currently have a Class 4 card, would a Class 8 card give any speed increase? Does it really pay off to upgrade to a higher class card?

my english that bad or does nobody have a answer?
would a upgrade to class 6 make any difference? (8gb sdhc class 4 to 8gb sdhc class 8)

eppoeh said:
my english that bad or does nobody have a answer?
would a upgrade to class 6 make any difference? (8gb sdhc class 4 to 8gb sdhc class 8)
Click to expand...
Click to collapse
Normaly it would be faster a class 8 but the artemis will not be any faster. It will not get the max speed of the card.

exactly speed might be a point for digital camera or sdhc card reader, not for PDA. Same for example as with mine 4GB SD 150x in Universal - no diff. in transfer rates between 66x SDcard and 150x. There is max. transfer rate of the mboard - i doubt it can be oveclocked. So if U dont need to transfer helluva lot of datas on daily basis thru SDHC card reader.....better to save some money for beer

krijger said:
Normaly it would be faster a class 8 but the artemis will not be any faster. It will not get the max speed of the card.
Click to expand...
Click to collapse
That was almost the answer i'm looking for
krijger said:
in transfer rates between 66x SDcard and 150x
Click to expand...
Click to collapse
Now i'm confused... max throughput of pda = 150x? then i should get a card that can handle that speed, right?
IOW: What is the max throughput of the phone?

I was speaking about classic SD cards (transfer rates are as multiple of ??default speed??) But there is no change in data throughput in device (and same with SDHC) simply transfer speeds are exactly same w/o connection to class or speed of the card in PDA-other thing is card reader. As i wrote above - if u dont need to transfer large amounts of data from PC... no need to have class8

the 8G sandisk card apparently dosnt read as fast as lower class devices. but as someone said the phone isnt at top speed like its wifi being 11mb b not G.

I have a Sandisk 8Gb microSDHC Class 4 in my Artemis ( WM6 touchflo 4 cube ROM) I store all my non ROM programs & files from the card & all video etc is of course stored on the card.
Cant say I noticed any lag vs smaller 2Gb Sandisk microSD card. I tried loading video on Device Memory to see if it played better & it didnt .

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Kingston micro SD HC 4 GB
I've purchased a Kingston micro SD HC 4 GB, but it doesn´t work in my HTC P3300 Artemis.
I would be grateful if you want to help me.

XLOOX said:
I have a Sandisk 8Gb microSDHC Class 4 in my Artemis ( WM6 touchflo 4 cube ROM) I store all my non ROM programs & files from the card & all video etc is of course stored on the card.
Cant say I noticed any lag vs smaller 2Gb Sandisk microSD card. I tried loading video on Device Memory to see if it played better & it didnt .
Click to expand...
Click to collapse
Hi, I have a HTC P3300 with Windows Mobile 5 installed. I bought a Trascend microSDHC 8 Gb Card but the system doesn't recognize it. Do you know how could it work?
Thanks in advance.

Artemis,
My Sandisk MicroSDHC 4GB class 8 slower than normal 2GB MicroSD card.

kakà_ricardo said:
Hi, I have a HTC P3300 with Windows Mobile 5 installed. I bought a Trascend microSDHC 8 Gb Card but the system doesn't recognize it. Do you know how could it work?
Thanks in advance.
Click to expand...
Click to collapse
the original p330 don't read the micro SDHD only the SD type. You have to install a cab that enable the p3300 to read the SDHD, then soft reset. I do in mine and all works fine

Use a tool to format your storage card properly, that increases the speed a lot more. 66x card should be fast enough.
Change the cluster size from 512 Bytes to 4 KB or higher. Note that you will lose free space because every file is at least 4 KB big, even if it's just 1 byte in size.
If you don't have lots of small files this is a good option. My card is now three times faster but I lost about 1 GB of free space.

Compare our SD cards speeds (for fun :D)

A-DATA 16GB SDHC Class 10, stock GB ROM
As for poll: Use more answers if you have more than 1 SD card, regardless if you're using it in Desire or not.

http://i1231.photobucket.com/albums/ee518/timmaaa/htchtcdesire2011-08-2417-15-51.png
Sent from my CM7.1 Desire using XDA Premium App

Class 4?
10char

About ~5.2MB/s write and ~29.3MB/s read. Used SD Tools.
I used CrystalMark yesterday and my read speeds were crap thanks to limitations.

What limitations?

Yeah class 4
Sent from my CM7.1 Desire using XDA Premium App

I tried formatting card with Desire. Never again. Writing speed went from 13 MBps to 5 MBps.

Class 4 16GB Sandisk.
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Use CrystalMark, because those speed are irrelevant for custom ROMs. Speeds that are important are with 4K files.

what allocation size , i find with 32 k on my 16gb sandisk class 4 writing speed is higher than read with 32k allocation using sd tools test on phone

With A-DATA 16 GB Class: ~ 7,7 MB/s write and ~ 19,5 MB/s read.

16GB Class 10

kingston 16gb class 4

Patriot 16GB, Class 10

Sandisk 8gb Class 2
GingerVillain 2.8 + SD Booster
View attachment 707010

The last result is really interesting. I have a 4 GB class 2 SDHC card from Sandisk and i get 9 MB/s write speed and 24 MB/s read speed; tested on my PC with the built-in card reader. I have tested two other SDHC cards, both Sandisk, one class 4 one class 6, with the same PC & reader, and they don't go over 5 MB/s (write speed) under the same testing conditions - copying a 700 MB file from the PC to the SD. Weird or what?
P.S. - All cards were fromatted under Windows 7, default allocation size.

@TVTV
I know, it's weird. Surely with a class 2 card I shouldn't be getting those kind of results???

using SD Tools,
Card: Lexar 32GB Class 10
write: 7.9MB/s
read: 25.0 MB/s
I haven't used any SD ROM Tweaks... not sure what AceMod007 uses by default.

Lexar 16gb class 6: write-7.4, read -27.7
Sent from my HTC Desire

This is my sandisk 8GB Class 4..
not bad...

SDcard Speed - show us !

Hi everybody !
I'm a new XDA user and i have been reading a lot on this forum and it is very helpful !!
I was wondering if this little beast (wildfire s) is able to take advantage of the different speedclass of the sdhc (class 4/6/10/ even more)
I tought maybe we could start a thread were you guys tell us what is youre sd card (type, model, size) and what is your speed result in Antutu Benchmark
So here is my result :
Kingston MicroSDHC
Class 4
16 GB
Antutu Benchmark :
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So :
Write : 4.7 mb/s
Read : 14.7 mb/s
Now whats yours ?
p.s. Sorry for my english ....

Hi,
so now have the MicroSDHC Samsung 32 GB Class 10th.
As info CrystalDiskMark has the 4K QD32 somehow made ​​problems. This is the Programme, as is already handled this error on the homepage of the program!
Now for the tests:
Status of the memory card (already described)
Samsung 2GB (for delivery) (PC)
Samsung 32GB Class 10 (PC)
Samsung 2GB (for delivery) (the HTC Wildfire S)
Samsung 32GB Class 10 (in HTC Wilfire S)
Antutu Benchmark:
SD card write: 8,7 MB/s
SD card read: 17,0 MB/s
But I wonder why the write speed is so low in the phone? The controller does not get more out?
Anyone here has any experience with SD Speed ​​Increase App?
Greetz
Garnett

Adata 32GB class 4
antutu gives me 4.6MB/s write and 9.3MB/s read

McGrady said:
Hi,
so now have the MicroSDHC Samsung 32 GB Class 10th.
As info CrystalDiskMark has the 4K QD32 somehow made ​​problems.
But I wonder why the write speed is so low in the phone? The controller does not get more out?
Anyone here has any experience with SD Speed ​​Increase App?
Click to expand...
Click to collapse
thats why i didnt show test made with a card reader , i want to know result with the phone itself !

Have the test done on the phone but only without screenshot. The result can be found below in the post... or again
Antutu Benchmark:
SD card write: 8,7 MB/s
SD card read: 17,0 MB/s
The tests on the PC should only show what the card can. The Wildfire slows down fthe SD card?

McGrady said:
Have the test done on the phone but only without screenshot. The result can be found below in the post... or again
Antutu Benchmark:
SD card write: 8,7 MB/s
SD card read: 17,0 MB/s
The tests on the PC should only show what the card can. The Wildfire slows down fthe SD card?
Click to expand...
Click to collapse
the card brand ? the class ?

McGrady said:
The tests on the PC should only show what the card can. The Wildfire slows down fthe SD card?
Click to expand...
Click to collapse
maybe the phone reader is just not very performant ....

Team 8GB Class10
First bench SD Tools, Second Bench Antutu
Sd card load over %83, test cpu:787

I've got transcend (i think) class 10 8 gb
shows me 8.6 write
and 15.5 read...
i will post screenshots tomorow ... and it would be great if everyone would use antutu ...

please guys , in order to have a good comparison please just post result from Antutu Benchmark ....

Da_SyEnTisT said:
the card brand ? the class ?
Click to expand...
Click to collapse
look not only to the screens... read
so now have the MicroSDHC Samsung 32 GB Class 10th.
Click to expand...
Click to collapse

AData Class 10 32 GB Micro SD
Not sure what this does as there is no commonality between ROM's, OC speeds, kernel tweaks, I/O settings, etc, but here you go.

The slowest!
SanDisk 8 GB Class 2 Card from 2 years ago:
Who can beat me
Used it for over a year in my old Nokia 5310
Good times

d33ps1x said:
Not sure what this does as there is no commonality between ROM's, OC speeds, kernel tweaks, I/O settings, etc, but here you go.
Click to expand...
Click to collapse
ok , i didnt know it made a huge difference between ROM and settings, like i said , im new in to that ...
in reality i was wondering if that phone would be able to take advantage of cards like this : http://www.sandisk.com/products/mobile1-memory-products/ultra-microsdhc-memory-card
thats why i was asking everybody result depeding on the card they use .... it would give me an idea

Da_SyEnTisT said:
ok , i didnt know it made a huge difference between ROM and settings, like i said , im new in to that ...
in reality i was wondering if that phone would be able to take advantage of cards like this : http://www.sandisk.com/products/mobile1-memory-products/ultra-microsdhc-memory-card
thats why i was asking everybody result depeding on the card they use .... it would give me an idea
Click to expand...
Click to collapse
Some reading to help out.
It's just hard to gauge.
Switching between noop to bfq i/o scheduling ups my write speed from 5.6 to 11.2 MB/s
It's a little variable. One thing we are seeing here though is things topping out around 17MB/s reading across the board.

Here goes my last Antutu benchmark.
I use a Samsung "Essentials" 16GB Class 6 card now. Used performance, noop for testing.
This one works with Data2SD while my previous Kingston 8GB Class 4 didn't.
Please click on the thumbnail to see it in real size.

SAMSUNG MicroSDHC 8GB Class10 /MB-MP8GA/
LINK
Test result:

ScanDisk 8GB class10
AnTuTu Benchmark :
Write : 8.9 MB/S
Read : 16.1 MB/S

Write speed 7.0 MB/s
Read Speed 18.8 MB/s
SanDisk 4GB Class 4

2.0 said:
Write speed 7.0 MB/s
Read Speed 18.8 MB/s
SanDisk 4GB Class 4
Click to expand...
Click to collapse
Could you please post a screenshot?
IMHO that's a bit high for a class 4 card. I'm not saying that you made these numbers up. It's just a good policy to post screenshots of benchmarks.
Thanks a lot!
Sent from my HTC Wildfire S A510e using xda premium

3 class 10 sdhc cards only one is really lol

I have there class 10 32 GB SDHC cards - one from my old t-bolt the one in my gfs SG II and the one in my note.
I ran a bench on my PNY and sure enough it did not come near class 10.
So I got all three togehter - backed them up - did a full fat 32 format (not quick) on win 7 and tested all three. On the pc and in the note -
PC Via ATTO
Note via antutu
Of the three brands I had Lexar, PNY and Sandisk - all three supposed to be class 10.
Only the lexar - which was sitting in my unused t-bolt - actually ran class 10 posting 13.6 MB/s writes and 22 MB/s reads..
The others not so much - both the Sandisk and PNY barely managed class 6 writes....

makes me happy for having a 32gb lexar class 10 card then

Just got a sandisk uhs-1 32GB not any faster than my class 10. dissapointed again.

glenroebuck said:
Just got a sandisk uhs-1 32GB not any faster than my class 10. dissapointed again.
Click to expand...
Click to collapse
UHS-1 = Class 10
Sent from my GT-N7000 using Tapatalk 2

lagittaja said:
UHS-1 = Class 10
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
that is not true at all - uhs-1 is 50-70 mb/s in uhs-1 supported devices which Samsung has said the note does support.

testing some more - added in samsung class 6 16 gb I got cheap at microcenter on sale.
Ummm. wow. The class 6 samsung runs as fast as any class 10 or uhs-1 I have tested. Faster in fact than everything but the lexar. Just shy of 11 mb/sec writes in my note and 27.1 mb reads - fast enough for hd video recording. I may order a class 10 sammy to see what it can do!

just ran it through Crystal Disk Mark - here is the results - again this is a cheaper class 6 card
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in comparison 32gb UHS-1

Can anyone recommend a similar program for Linux, or even an Android app?
I've tried using dd, with various sync options, but get inconsistent results.
thanks much indeed...

cdmackay said:
Can anyone recommend a similar program for Linux, or even an Android app?
I've tried using dd, with various sync options, but get inconsistent results.
thanks much indeed...
Click to expand...
Click to collapse
Antutu benchmark has a built in file read/write test.
On antutu my n7000 gets I think 10Mb/sec write and 22MB/sec reads
My 2.5 year old class 6 16GB uSD card gets 4.5MB writes and 14MB reads in the note.

sd tools from the market as well will test your sd card. I do a full format before I test though. Framentation and data can affect your results.

lagittaja said:
UHS-1 = Class 10
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
Why make it so confusing
why not just write class 10 on card ???

ilordvader said:
Why make it so confusing
why not just write class 10 on card ???
Click to expand...
Click to collapse
Because it's not true: UHS-1 does not equate to Class 10.
On a device that supports UHS-1, it will be very much faster than Class 10.
On a device that does not support UHS, it won't.

Kingston 128GB Class 10 SD Card review

Kingston introduced its 128GB Class 10 UHS-I Speed Class 1 (U1) microSD for smartphones and
tablets last year. Since this is a class 10 Card, it promises a minimum data transfer rate of 10MB/s.
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The company doesn’t reveal maximum read and write speed, but we will test out both the read
and write speed of the card. How good is the card? Let us find out in the complete review.
Several top-end and mid-range smartphones now support 128GB microSD cards. Even low-end
Lumia devices support 128GB cards, according to Microsoft. We tested this card from the top-end
Galaxy Note 4, Note Edge, HTC One M8 to mid-range Samsung Galaxy A5, Galaxy A3 and several
other smartphones, which worked fine without any issues. We also tried it on the Moto G (2nd
Gen), but it did not work since it supports microSD card only up to 32GB.
Here are some benchmarks to show how this card performs.
Read/Write speed test using.
CrystalDiskMark x64 – USB 3.0
Read/Write speed test using CrystalDiskMark x64 – USB 2.0
Sequential read speed was around 87 MB/s and write speed was around 30 MB/s in the
CrystalDiskMark benchmark using USB 3.0. Using 2.0 you get sequential read speed of 35 MB/s
and write speed of about 23 MB/s. As you can see, you get 118GB of usable space in the 128GB
card.
Read Speed measured using HD Tach – USB 3.0
Read Speed measured using HD Tach – USB 2.0
Read speed was steady at 80 MB/s using USB 3.0 in HD Tach. Using USB 2.0 connection, it was
steady at 35 MB/s. Both these tests make it clear that using a card reader with USB 3.0 support
lets you transfer data faster between your PC and the card. Data transfer speed will be different
when you are using it in a smartphone. Let us check the transfer speed of the card in a phone.
Read and Write speed using A1 SD Bench for Android
The read speed was around 53.9 MB/s and the write speed was around 10 MB/s with the A1 SD
Bench app for Android. Some testing apps like SD tools and SD Card Tester did not work and
showed errors, hence we could not test the speed using those apps.
Conclusion
The Kingston 128GB Class 10 microSD XC card offered impressive and steady write speed and
read speed for a UHS-I U1. We have come a long way in expansion memory. Few years back
512MB and 1GB cards were the top-en, now we have 128GB cards. Since we now have
smartphones that is capable of recording 4K videos, which takes of several GBs of space for a
few minute video, having a 128GB card handy lets you store several hours of 4K videos. Having a
memory card slot in your smartphone is always useful if you play more games in your smartphone
or store a lot of media content, and if it supports 128GB microSD cards, it would be even better.
Main thing you should notice about the 128GB cards is the compatibility. Check the official
smartphone or tablet maker’s website to find out if your device supports 128GB cards. Even
though most latest mid to high-end devices do, some smartphones only supports maximum 32GB
or 64GB cards. The Kingston 128GB SD card is available for $99.99 in the U.S. Kingston also introduced high capacity UHS-I
U3 microSDXC cards few months back. We will be reviewing the Kingston 64GB UHS-I U3
microSDXC card soon, which offers 90MB/s read and 80MB/s write speed.

Wow. So fast. My 32gb EVO Samsung microsd is already OLD
Nice

Hahah
Sent from my XT1022 using XDA Free mobile app

Nice review ! ??

Thank you for reading!