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Hey. Just curious how many of you have replaced the stock 16gb class 2 sdcard with class 4,6 or 10. Can you chime in with your inputs on performance between these classes. I know the theoretical transfer speeds, but I am curious how they actually perform in day to day use. Would jumping from a class 2 to class 6 be noticeable, or a class 6 to class 10?
Thanks
I am interested to.
Have just upgraded to an Ebay 16gig Class 6. Speed is faster than a Class 2 but not sure if it is a Class 4 or class 6.
Tempted to buy a 8gig Class 10 but struggling to find a reputable source of these.
In case you don't know Class x denotes the write speed. Class 2 has a 2meg/sec. Class 6 has a 6meg/sec write speed. Also gt a increase in read speed. All must be good for the HD unless the Interface is slower than the card??
dusty_nz said:
I am interested to.
Have just upgraded to an Ebay 16gig Class 6. Speed is faster than a Class 2 but not sure if it is a Class 4 or class 6.
Tempted to buy a 8gig Class 10 but struggling to find a reputable source of these.
In case you don't know Class x denotes the write speed. Class 2 has a 2meg/sec. Class 6 has a 6meg/sec write speed. Also gt a increase in read speed. All must be good for the HD unless the Interface is slower than the card??
Click to expand...
Click to collapse
From my reading and investigation, not many devices out there support such high speed, I'm thinking phone isn't one of the device that do. I would like to see someone do some testing and see if there is a difference on a HD2 between a class 6 vs class 10.
I didn't know they had a class 10, but I'm running a class 6 and I can tell the difference from the 16gb stock card. Loading Android is a lot faster too.
Sent from my HTC HD2 using XDA App
I have a class 10... Its a great diference.
I've got a couple of 16Gig class 2s and a 4Gig class 10. I can certainly tell a difference. I haven't done any empirical testing but gut says it's almost twice as quick. The difference comes when you multitask, getting a couple apps open, app loading, etc.
The problem with the 4Gig is the obvious lack of size. I'm thinking of buying a 32Gig class 4.
xicko said:
I have a class 10... Its a great diference.
Click to expand...
Click to collapse
between a class 6 and 10, is there still any noticeable improvements with the phone?
I want video evidence.
Lorddeff07 said:
I want video evidence.
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Click to collapse
Agree! A video might help us to decide if it is worth buying a class 10 card.
bangsters said:
between a class 6 and 10, is there still any noticeable improvements with the phone?
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Click to collapse
Looking at numbers alone, a class 6 is three times faster than a class 2 and a class 10 is five times faster than a class 2 so upgrading from a class 2 would appear to be a sure fire bet in both cases
In comparison a class 10 is only 1.6 times faster than a class 6.
So I think I will stick with my class 6 for now until class 12+ comes out.
So in conclusion do you guys think a faster SD card is necessory? because once xda team finish develop a perfect android rom i believe they are gonna make it a rom, in that case we would'nt need a faster SD card, But i really wonder if a faster SD card improves the performance? Can someone kindly provide a video for this ? Thanks ,,
class 10
I have a 16gb kingston class 10, compared to my Transcend 8gb class 6, not that much difference, compared to my Class 2 16gb that came with the phone? huge difference.
I'm now going out, to buy a 16GB classe 4 , i think is sufficient, given that in September Cttula will provide NAND, and the class will no longer important, and I'd rather have more space for my photos and videos, in vacation than a business card 8GBclasse10 faster.
Is the ETA for NAND September?
Nand speed vs. Class 10 card?
Anyone know what the read/write speed of the nand memory is as compared to the say the read/write speed of a class 10 card? I know it should be faster, but is it really that much faster?
bangsters said:
Hey. Just curious how many of you have replaced the stock 16gb class 2 sdcard with class 4,6 or 10. Can you chime in with your inputs on performance between these classes. I know the theoretical transfer speeds, but I am curious how they actually perform in day to day use. Would jumping from a class 2 to class 6 be noticeable, or a class 6 to class 10?
Thanks
Click to expand...
Click to collapse
i got class 10 kingston 16gb,
transfers between pc and phone is up tp 6 mb/s read and write, but on the phone it self i think it's faster.
previously i had class 2, 8gb sandisk and it was alot slower...
how do I know which class the SD card is?
i use a class 10 card in my digital slr and it makes quite a big difference. i'm sure it would create a significant performance boost with android
pack21 said:
I'm now going out, to buy a 16GB classe 4 , i think is sufficient, given that in September Cttula will provide NAND, and the class will no longer important, and I'd rather have more space for my photos and videos, in vacation than a business card 8GBclasse10 faster.
Click to expand...
Click to collapse
I dont find any microSD 16gb classe4 just, classe 2 and classe 10 - 100€
8gb classe4 i found for 20€
somebully said:
Is the ETA for NAND September?
Click to expand...
Click to collapse
Yes
reocej said:
Anyone know what the read/write speed of the nand memory is as compared to the say the read/write speed of a class 10 card? I know it should be faster, but is it really that much faster?
Click to expand...
Click to collapse
I think, it cant be comparable....starting by speed and smooth.
Hi all,
I'm going to finally have some spare time this weekend and might even get to have a mess around with Android on my HD2 if I get lucky! My concern is that I have a 16GB Class2 microSD in my Leo and while looking at HD2 stuff on ebay came across this.
The seller states that Android won't run (properly?) on his 16gb Class2 and includes a Class6 8gb card aswell for this purpose.
What's everyone's experience with running Android on a slower card? From looking around I've seen people saying 'there isn't much difference' for most things but a lot of contridictions for others.
Thanks gang!
I have no issues with my Android build currently, and it's on a 4gb Class 2 SD card.
It does help having a faster one, but It's not the end of the world.
Phil
Have been testing out froyostone sense build on a 2gb class 2 card and it's like lightening So yes, would format first though otherwise you will get lag.
Cheers - yep I won't forget to format, been reading the threads while working this week... taken in loads of info, just need to find the time to actually get it rolling
I was wondering the same thing. I installed froyostone 08.07.2010 using miri Rom on stock radio on a friends hd2 and it freezes and comes back to life very often. Would a higher class sdcard solve his problem?
I think they guy on eBay is talking rubbish. I run darkstone's 2.2 perfectly well on a 16GB Class 2. A Class 4 would probably help a little bit, but I'm not that fussed really.
I'd be more concerned about getting dodgy copies of Transformers from them!!
murdaralph said:
I was wondering the same thing. I installed froyostone 08.07.2010 using miri Rom on stock radio on a friends hd2 and it freezes and comes back to life very often. Would a higher class sdcard solve his problem?
Click to expand...
Click to collapse
The whole OS and all animations etc, or just touch screen response?
If its the touch screen, that's a known issue and will be addressed in due course.
Phil
It's in german, but i guess u may figure it out.
h**p://***.chip.de/bestenlisten/Bestenliste-microSD-Karten--index/detail/id/867/
I have a kingston class 2 , not working.
qingcai said:
I have a kingston class 2 , not working.
Click to expand...
Click to collapse
A Little more information would be useful, what's not working about it? How's it formatted? Has it even been formatted and then had a new build copied to it?
Phil
i never had issues with a class 2 before... no SOD or anything... although after switching to class 4, there is noticeable speed. now in class 10, a lot faster. but no real issues in class 2 except a tad slower (but decent speed nonetheless)
I use the 16gb class 2 card and its quick with decent quadrant tests. I think its because android loads into ram (please correct me if I am wrong, ill search for this later). I think there are apps that read or write to folders on the SD card that would gain from speed of a class 6 or 10 card and if I am right about loading to ram the boot up time could receive a benefit.
Personally I am looking to get one just to access media faster and for taking pics and vids as there is a write delay that's typical with all phones. If it helps android in its current state the cool but I'm not in a rush. Development here have made great strides in making android snappy and android is an awesome is as it is for handling background tasks. Much to the credit of Linux but I find android to be a faster evolution then most mobile oses. Much to the credit of being open source and encourage community development. Nothing here is illegal but maybe some grey areas in closed source distributing which cyanogen had an interesting situation that was resolved quickly with Google's assistance.
But I am off topic now. Yes it would help with some things but don't break the piggy bank over it.
Hope my thoughts are helpful. It would be better to get feedback from those that have done it and get before and after boot, quad, and market download responsiveness tests. I may have a class 6 8gb card somewhere I can test later tonight. I would do fresh sdformatter formats with nothing but android on the card to get a somewhat standard benchmark.
Sent from my HTC HD2 using XDA App
Mine is 16gb class 2, with the latest fullram zimage, i score 29.2fps in neocore test
and can play sparta! very smooth, also the asphalt 5
kerman19 said:
The whole OS and all animations etc, or just touch screen response?
If its the touch screen, that's a known issue and will be addressed in due course.
Phil
Click to expand...
Click to collapse
the touch screen. The SD card was quick formatted. Would that make a difference in the builds performance ?
I'm using a Kingston class 2, but it performs with 5,5MBs writing speed when used in a computer slot, so in practice its a class 5,5. Works great! Froyostone sense v1
pappadj said:
I use the 16gb class 2 card and its quick with decent quadrant tests. I think its because android loads into ram (please correct me if I am wrong, ill search for this later). I think there are apps that read or write to folders on the SD card that would gain from speed of a class 6 or 10 card and if I am right about loading to ram the boot up time could receive a benefit.
Personally I am looking to get one just to access media faster and for taking pics and vids as there is a write delay that's typical with all phones. If it helps android in its current state the cool but I'm not in a rush. Development here have made great strides in making android snappy and android is an awesome is as it is for handling background tasks. Much to the credit of Linux but I find android to be a faster evolution then most mobile oses. Much to the credit of being open source and encourage community development. Nothing here is illegal but maybe some grey areas in closed source distributing which cyanogen had an interesting situation that was resolved quickly with Google's assistance.
But I am off topic now. Yes it would help with some things but don't break the piggy bank over it.
Hope my thoughts are helpful. It would be better to get feedback from those that have done it and get before and after boot, quad, and market download responsiveness tests. I may have a class 6 8gb card somewhere I can test later tonight. I would do fresh sdformatter formats with nothing but android on the card to get a somewhat standard benchmark.
Sent from my HTC HD2 using XDA App
Click to expand...
Click to collapse
You have experience with your G1, the class 6 I use on mine makes definite difference when running apps from your sd card. I've been alternating using my 16 GB Class 2 and my 8 GB Class 6 in my HD2 but I haven't seen any speed difference with android so I believe that it runs on the internal ram.
i think class 2 is enough
murdaralph said:
the touch screen. The SD card was quick formatted. Would that make a difference in the builds performance ?
Click to expand...
Click to collapse
Touch Screen lag/freezing is a known issue right now and doesn't relate to the SD card.
It's being worked on.
Phil
I have a class 2 16GB sandisk drive and score 1578 in quadrant standard, that said i usually get write speeds of around 6MB/sec on my computer
i personally think it helps a bit ( i ws previously running Android off the 16GB class 2 card the HD2 came with) but experienced some lag when scrolling.
That said, it was an early build of Android so it was probably just that.
The thing is, 8GB class6 cards are relatively cheap to buy (i picked up an A-DATA 8GB class 6 for $21 canadian at CanadaComputers)
so..why not upgrade to the class6 card? I'm sure it wouldn't hurt and no matter what you'll experience at least have SOME sort of performance gain in other aspects (music, pictures, file managers, etc)
So I've done the regedit deletion for the gsensor.dll but still encountering random freezes. They last about a minute and aren't breaking where I have to reboot but still annoying. Using a froyosense build.
I am using my stock class 2 SD card. I remember reading a few threads that the class 2 would cause freezing on games, even the game demos that came with the hd2.
Will moving to class 6 help the freezing? Any thoughts?
edit: Solved my own issue. Using G sensor lite or changing the g sensor in kernel to off will stop freezing. Class 2 card runs perfectly. Probably a class 6 would improve video/music but thats true of winmo also. Maybe if someone finds my post with the same question this will help.
no i bought a class 6 8 gig , and the only difference i really se is booting android faster and maybe a little better game play
Using a class 6 sandisk and stock class 2 card and I can def say there is a big improvement in stability and performance with my class 6 card. But it is only a 4 gig card.:-(
I am trying to use the 16 gig that came with the phone. It has major issues. The 1 gig card I have works well enough, but with some builds, it's not even enough space! This sucks. How can I even tell what class of card I have? I may buy a 2 gig card because I don't load music and stuff.
EDIT: I figured it out. I see this 16g card has the "2" on it for class 2. Lame.
Hello,
I installed Android on my HD2, worked perfectly for 2 weeks. But my microSD was only 2GB, so I buyed a new one.
Kingston class 4 8gb microSD. Putted everything just on the new SD card, didn't changed anything! Formatted it also to FAT32.
Now the problem is that Android is VERY slow with getting out of standby, takes sometimes 10 seconds. I get a black screen for 10 seconds and then Android comes up.
Also starting up Android takes ages and it sometimes just freezes or gives a blue screen.
Has this something to do with Android or is the microSD card broken in a way? I can still move/delete files on the microSD card.
Anyone got at solution?
Thanks
Did you try a different build? Perhaps try Mdeejay rEVOlution build, fastest build i've used so far,very very fast, smooth and stable. Also try updating your radio.
I bet there are several utilities to test the read and write speeds on your microSD card. You'll need a cardreader in your pc to do that, trying it through WM6 won't work because the USB will be the one controlling the max speeds.
I hope this helps a lot of people struggling with the speed of android running off SD.
My suggestion is that the card size, and not just the card speed plays an important part in the speed at which android runs...
My Evidence. I first installed various builds on a variety of Sandisk 2GB and 4GB Class 2 cards. They all ran super fast... I mean no lag at all, ever. It might as well have been a Desire HD. Being that i wanted more space I used my 16GB Sandisk Class 2 that I have been using for WM, reformatted it and installed android. It was cripplingly slow. Unusable in fact. (i tried reformat/reinstall a couple of times before giving up). I then invested in a Class 4 16GB and installed the same build. Not surprisingly this was faster, usable but still not as fast as it was on the 4GB Class 2. I am going to go back the the 4GB card unfortunately until NAND arrives.
Murg
murgers said:
I hope this helps a lot of people struggling with the speed of android running off SD.
My suggestion is that the card size, and not just the card speed plays an important part in the speed at which android runs...
My Evidence. I first installed various builds on a variety of Sandisk 2GB and 4GB Class 2 cards. They all ran super fast... I mean no lag at all, ever. It might as well have been a Desire HD. Being that i wanted more space I used my 16GB Sandisk Class 2 that I have been using for WM, reformatted it and installed android. It was cripplingly slow. Unusable in fact. (i tried reformat/reinstall a couple of times before giving up). I then invested in a Class 4 16GB and installed the same build. Not surprisingly this was faster, usable but still not as fast as it was on the 4GB Class 2. I am going to go back the the 4GB card unfortunately until NAND arrives.
Murg
Click to expand...
Click to collapse
Thanks for the reply!
First i'm going to test the Mdeejay rEVOlution build, hopefully it will run smooth and fast. If not, i'm gonna send back my 8GB card and get a new 4GB class 4 card.
At the moment I'm running Froyostone 3.2, works now perfectly with the 2GB microSDcard.
I will post the results.
murgers said:
My suggestion is that the card size, and not just the card speed plays an important part in the speed at which android runs...
Click to expand...
Click to collapse
I totally agree with this, although I cannot figure out why.
I tested with two almost identical cards, both Samsung class 4, one 2Gb, one 8Gb, formatted FAT32 64k clusters via the same memory card reader/pc. The 2Gb one whizzed along with the build I'm running now, the 8Gb one occassionally stuttered and stalled. Seems odd to me, unless fragmentation comes into play maybe?
The only reason I have stuck with the 8Gb is for my music. Oh how I'd love to stick with my 2Gb card for the speed and have a second SD slot for my music.
Hi I noticed in the recent wp7 roms that is is recommended to have atleast
class 6 sd card. Why has this increased? The last 6 months I have been using a 16gb class 2 & and my wp7 roms have been working fine. The last rom I used was pdaimate v1 and it ran flawlessly. Now I invested in a 32gb class 4 card & was hoping to install the latest pdaimate roms with multi fix. Question is how will my new card fare in performance compared to a class 6?
Marcus2283 said:
Hi I noticed in the recent wp7 roms that is is recommended to have atleast
class 6 sd card. Why has this increased? The last 6 months I have been using a 16gb class 2 & and my wp7 roms have been working fine. The last rom I used was pdaimate v1 and it ran flawlessly. Now I invested in a 32gb class 4 card & was hoping to install the latest pdaimate roms with multi fix. Question is how will my new card fare in performance compared to a class 6?
Click to expand...
Click to collapse
Its still random access speeds that are important, people saying class 6 is probably just what they have working, but its a provable fact cards with a slower random R/W, cards do not work, tied to that, many (but not all!) Class 6+ cards use a type of prefetching to speed up their sequential speeds, that can slow down random speeds, so sometimes ( but not always!) less than class 6 is better.
Agreed! I have 2 cards performing very different... 1. is a 8 gig Nokia OEM card class 4 - takes VERY long to install apps and watching videoes on youtube and such requires me to wait for the whole video to load as there will be lag otherwise. My other card is a 16 gig Sandisk class 2 - Time for installing apps is acceptable and watching videos on youtube is smooth BUT the batterylife is a lot worse than on my other card!
As you can se class can't tell you how a certain card will perform! Logic would say that the card with the higher class should load faster but on the other hand have poor batterylife - wrong in my case!
So what is the solution you might ask? Trial and error my friend - trial and error That's as simple as I can put it.
/Anders
Well after loong night of installing wp7 and 4 android builds on my new 32gb class 4 card, everything went smoothly. All builds fly but unfortunatly bad battery life remains..