Database Users

16GB Class 2 or Class 6 ?

I am not quite sure about this..
The Class 6 is 40% more expensive than class 2 ... But which one is better for my HD2 ?
Is class 6 will worth it ? any tech glitch if I use class 6 (maybe too fast ?)
Thanks

sectorlord said:
I am not quite sure about this..
The Class 6 is 40% more expensive than class 2 ... But which one is better for my HD2 ?
Is class 6 will worth it ? any tech glitch if I use class 6 (maybe too fast ?)
Thanks
Click to expand...
Click to collapse
I dont think its woth it. but its a bit faster. if your budget allow you go for it

I think class 4 is the best of both worlds...
class 2 maybe too slow on saving something like a long video u shoot with your cam and i think that class 6 doesnt worth its money.. i have a 8gb class 4 and im really happy with it..

I have a Transcend 16GB Class6 and it is especially fast when use HD2 as "storage memory" or when insert the microSD directly in to my PC.
During the normal use probably a Class 4 is ample.
Regards

Class 2 is more than adequate. Your card is only as fast as the writer/reader hardware.
Food for thought: The majority of 16Gb MicroSD failures with the HD2 have been Class 4 (me included - I had a 2 month old Sandisk Class 4, 16Gb fail on me in this phone, bought a new Kingston Class 2, 16Gb and have not had a problem)

Obviously, yes. But I have no problem at all with my microSD Transcend 16GB Class6 on my Leo HD2.
All works fine and fast. And the hardware reader/writer on the HD2 is used at maximum of it's performance
Regards

Class 6 is too expensive. I got the Sandisk 16GB uSDHC Class2 and it's fine.

Xeon said:
Class 6 is too expensive. I got the Sandisk 16GB uSDHC Class2 and it's fine.
Click to expand...
Click to collapse
same here, working perfect

Same with me!

I disagree with most guys in here. considering that you have just spend a hell lot of money on the HD2, I think that you might as well spend a few more bucks on a class 6 card, than a class 2. Especially considering that micro sd cards are so cheap today, I see no problem in that tiny bit of extra cost.

Class 6 value?
Of course it's worth it.
Copying, TomTom, photos, are all faster.
I don't believe Sandisk make a class 6 16g

It is important to note that using a class 6 rather than class 2 card will make absolutely no difference whatever to the performance of the phone - the phone itself is unable to read from or write to the card any faster than a class 2 card can easily cope with. The only time the class of the card makes a difference is if you take it out of the phone and plug it into a card-reader attached to a desktop PC.

Shasarak said:
It is important to note that using a class 6 rather than class 2 card will make absolutely no difference whatever to the performance of the phone - the phone itself is unable to read from or write to the card any faster than a class 2 card can easily cope with. The only time the class of the card makes a difference is if you take it out of the phone and plug it into a card-reader attached to a desktop PC.
Click to expand...
Click to collapse
Are you sure about this? Got any source?

Stoferr said:
I disagree with most guys in here. considering that you have just spend a hell lot of money on the HD2, I think that you might as well spend a few more bucks on a class 6 card, than a class 2. Especially considering that micro sd cards are so cheap today, I see no problem in that tiny bit of extra cost.
Click to expand...
Click to collapse
HD2 600 euros
+
Piel Frama case 80 euros
+
Sandisk 16GB SDHC 45 euros
------------------------------
725 euros approx. 1100 USD
That is already too much for a phone. ( not considering the additional 10% VAT in my country )...

Xeon said:
...That is already too much for a phone. (considering the additional 10% VAT in my country )...
Click to expand...
Click to collapse
Vat at 10%? That's a luxury. We have to pay 17.5% in the UK (back up as from Jan 2010)!!
WB

wacky.banana said:
Vat at 10%? That's a luxury. We have to pay 17.5% in the UK (back up as from Jan 2010)!!
WB
Click to expand...
Click to collapse
Off-topic but we have 10 times less annual income as average compared to Europe ( thank god it is not my case )

Shasarak said:
It is important to note that using a class 6 rather than class 2 card will make absolutely no difference whatever to the performance of the phone - the phone itself is unable to read from or write to the card any faster than a class 2 card can easily cope with. The only time the class of the card makes a difference is if you take it out of the phone and plug it into a card-reader attached to a desktop PC.
Click to expand...
Click to collapse
Surely this phone can read faster than that? Seems odd that a high spec phone like this can't read faster than a class 2 card.

wacky.banana said:
Vat at 10%? That's a luxury. We have to pay 17.5% in the UK (back up as from Jan 2010)!!
WB
Click to expand...
Click to collapse
only 17.5%? lucky you
we have 25%... hungary sux.
could somebody test class-2-4-6 cards in hd2? I'm curious to know what should I buy.

The difference between class 2 and 4 is noticable to me on the HD2, so a class 6 would be nice, but so hard to find.

bzdemes said:
Surely this phone can read faster than that? Seems odd that a high spec phone like this can't read faster than a class 2 card.
Click to expand...
Click to collapse
Well, you have to ask what the phone might be doing that would actually require data to be read or written that quickly. If you're watching a video, for example, the highest bit-rate you'll encounter will be 2 to 3 Megabits per second. Even the worst class 2 cards can be read at 3+ Megabytes per second. So you certainly won't get smoother video playback with a higher class of card. The camera doesn't take pictures quickly enough for the data transfer rate to the card to become a limiting factor. What might you be doing that needs more than class 2 speed? Given that you don't need more than class 2 speed, it would be a waste of money to enable the phone to read or write faster than that.
If you don't believe me, try running an SD card benchmark on your phone, and let us know the results.
The class ratings tend to be quite conservative, in fact, especially on name-brand cards. You can easily read at 8 or 9 MB/s off a "class 2" card from Sandisk (indeed, it may even outperform a no-name "class 6" card). That's more than enough speed for the phone.

microSD 32Gb class 6 and Galaxy S

I am thinking about purchasing a 32Gb microSD for use with my galaxy S.
My concern is that, is this too large? Are there any bad side effect like it being too slow to display picture/start up scann/run applications?

Which brand? That's probably more important for the speed than class (a class 2 Sandisk is often as fast or faster than a class 6 from a lesser brand).
The capacity of the card shouldn't affect the speed during most situations. However the phone does scan for media each time it is turned on or after disconnecting from USB connection (Kies or mass storage), the amount of time this takes depends on:
-the amount of media stored on the card and
-(probably) the read speed of the card.
Note that class rating is minimum write speed - so it's not a great indicator of real-life performance.
Also note that some too-cheap-to-be-true cards are actually smaller capacity cards that report larger capacities to fool the customer.
BTW where are you getting the card from (I want one as well ).

Hi flamingpitofhell,
I am looking at Sandisk as well and most likely get it from their online store. I am trying to find more information whether it is worth the trouble.

I don't think Sandisk sell class 6 cards (yet). Buying from their online store's also more expensive than online retailers (I can get one in Australia for AUD155, which is ~USD137, cf their RRP of USD200).

thanks for the pointer. will look around for local stores here in Thailand.
Which city in Australia are you in? I studied in Perth more than a decaded back.

I'm in glorious Melbourne mate, haven't been to Perth yet

the only LEGIT 32GB Sandisk available right now in the market is only Class 2
if you read anything else, it is FAKE, specially from eBay
wait until the other microSD manufactures start pushing out 32GB on class 4 or class 6 before buying.
i'm using 2x 16GB Class 6 until the 32GB class 6 becomes available.

I'm using Class 2 32GB card in mine, its fine.
Its slower when you're transferring to the card from your PC, but for most people thats only particularly problematic the first time (loading music collection), after that you'll not really notice a difference in the phone (the read speeds are basically the same, and the phone can neither read nor write to the card faster than a Class 2 card can cope with). You can see it in the benchmarks taken post-mimocans fix - Class 2 cards are no slower than any other Class within the phone.
Grab one now and be happy.

NZtechfreak said:
I'm using Class 2 32GB card in mine, its fine.
Grab one now and be happy.
Click to expand...
Click to collapse
Where did you get yours from and how much for. I`m interested in getting one myself.
Thanks

my local stores already carry the real Sandisk 32GB class 2
too slow for my taste, i like to run Apps from the SD card, also use it as a SWAP partidion to prevent the LAG problem people complains about, it's a very easy fix
http://forum.xda-developers.com/showthread.php?t=724251

i wonder what would be better a 16gb class 6 or 32gb class 2...
is it worth sacrifising double of the memory for the speed?

onbacardi said:
i wonder what would be better a 16gb class 6 or 32gb class 2...
is it worth sacrifising double of the memory for the speed?
Click to expand...
Click to collapse
it depends what you are trying to do
if it's just to listen to mp3, then Class 2 is fine
if you want to run games, software, watch movies, use it for SWAP drive to have no lag, then minimum a Class 6

Class ratings don't really seem to have too much of an effect on real world performance: http://forums.whirlpool.net.au/forum-replies.cfm?t=1468705. Just discount the last result from the SGS (it's most likely mistaken for the internal SD).

i rather trust my experience coming from PalmOS + WinMb where real life situations using a class 4 or slower cards, made a huge word of difference when launching applications from SD and watching movies from SD
funny enough the numbers reported on that topic shows SGS i9000 to have the fastest speed even using the same card that got lower speed on the other phones.
which seems to point out it's directly proportional to the CPU speed, and the multitasking software running in the back end.
however as you see on those test itself, there are speed differences between class 2, class 4 and class 6
the same class # can not be compared to another class # of a different size,
if you imagine a hard drive, the bigger the hard drive the more layers/disk area it has to read, the same is true even for static SD cards.
however as pointed on those test Transcend usually has the fastest SD cards in the market, that's why i always buy that brand for performance, using a 16GB Transcend myself, waiting for the 32 GB class 6+ to come out
Adata has 2 lines, the performance line, and the standard line
if you want speed get the performance SD cards
Kingston and Sandisk are mostly standard speed, they don't release much performance level SD cards anymore, but they do have lots of those on USB sticks.

I tried my Brothers Sandisk Class 2 32GB and it worked perfectly.
Granted it's not as fast as my Sandisk Mobile Ultra Class 4 but that card flies anyway.
Certainly for recording your large movie files taken with the camera it's no different in speed than using the built in SDCard on the phone.

I have no problems watching 720P video on my phone. I have no problems launching applications either.
So much misinformation...

of course there is no problem, the issue here is getting the top performance, any SD card will work just fine.
it's just a matter of how fast/slow are you able to torelate

The only time you will notice any difference in speed is when transferring data to and from the card.
However, when you have double the space of other cards to consider speed should not be a deciding factor.
I'm already looking to get the Sandisk Class 2 32GB card. It will store all of my work files normally kept on my Laptop.
My Sandisk Class 4 Mobile Ultra 16GB will be my spare ~ should the larger card fail...

Thanks for the information s everyone.
Sent from my GT-I9000 using XDA App

I have the 32GB sandisk card and works perfect. I have a 720p mkv file and my music on there. Playback was superb for the video with no noticeable lag. Mind you the card isn't anywhere near full yet. From my limited knowledge of sd cards, they put data on the fastest part first so the fuller it gets the slower the card is likely to get..
My plan is to put movies and songs on the 32GB file and reserve the internal 13GB for capturing video and taking pictures on the phone.

[Q] Micro Sd class 10 or class 6?

I'm looking to buy a new MicroSD and wondering if getting a class 10 over a class 6 would make a significant difference to the phone (if im using data2sd and or apps2sd)
Thank you!

I think the difference between class 6 and 10 would feel minor, where-as the difference between the class 2 and class 6 feels huge.
And since this is the Vibrant forums, I should mention that the internal memory in the phone is very fast. I tested it at over 10MB/s write on my first phone. My second phone its closer to 6 MB/s write. So you apps and stuff should run perfectly fine from the internal app storage.
I should also mention that I purchased the new kingston micro sd thats rated class 4 but claims speeds upto class 10. Upon testing that I got 9 MB/s write. ($28 after $10 reward from buy.com). My previous class 2 16GB card tested it 2.6 MB/s write for comparison.

Shane_pcs said:
I think the difference between class 6 and 10 would feel minor, where-as the difference between the class 2 and class 6 feels huge.
And since this is the Vibrant forums, I should mention that the internal memory in the phone is very fast. I tested it at over 10MB/s write on my first phone. My second phone its closer to 6 MB/s write. So you apps and stuff should run perfectly fine from the internal app storage.
I should also mention that I purchased the new kingston micro sd thats rated class 4 but claims speeds upto class 10. Upon testing that I got 9 MB/s write. ($28 after $10 reward from buy.com). My previous class 2 16GB card tested it 2.6 MB/s write for comparison.
Click to expand...
Click to collapse
Just to help out here...
the difference between class 2 and class 6 is the exact same as class 6 and class 10. Remember the cd-rom speeds (52x, etc)? That's how the speed is calculated for a SDHC card. So a class 2 = 2x cdrom, class 6 = 6x, class 10 = 10x.
whether our hardware has capability to handle what a class 10 can do, that I don't know. I'd definitely advise to get something with more space than a 2GB card though - I'm not sure everyone needs a 32 (personal opinion/long discussion), but I absolutely agree it should be improved upon.

designerfx said:
Just to help out here...
the difference between class 2 and class 6 is the exact same as class 6 and class 10. Remember the cd-rom speeds (52x, etc)? That's how the speed is calculated for a SDHC card. So a class 2 = 2x cdrom, class 6 = 6x, class 10 = 10x.
whether our hardware has capability to handle what a class 10 can do, that I don't know. I'd definitely advise to get something with more space than a 2GB card though - I'm not sure everyone needs a 32 (personal opinion/long discussion), but I absolutely agree it should be improved upon.
Click to expand...
Click to collapse
I understand that, thats why i picked those classes. But my point is that a class 6 card is 3x the speed of a class2 where class 10 isnt even twice as fast as the class 6. So the perceived difference is smaller, even though the technical difference is the same.

I'm still running a class 2 and I've been wondering if this is holding me back on this phone (card was previously in my G1).
Will the lower classes function the same (creating ext2 etc...) it's just a matter of speed? Just wondering if there's anything that simply can't be done with a class2 or even 6 that could be done with a 10.

CapitalM3 said:
I'm still running a class 2 and I've been wondering if this is holding me back on this phone (card was previously in my G1).
Will the lower classes function the same (creating ext2 etc...) it's just a matter of speed? Just wondering if there's anything that simply can't be done with a class2 or even 6 that could be done with a 10.
Click to expand...
Click to collapse
Just cost you more. Do you really need a class 10 for this phone? Avatar is on a card that isnt even a class 2.

Vegastouch said:
Just cost you more. Do you really need a class 10 for this phone? Avatar is on a card that isnt even a class 2.
Click to expand...
Click to collapse
xD What class was the stock sd card?

I only ever see class 6+ cards being used in higher end compact cameras and SLRs.
Putting anything higher than class 6 in a phone your using for apps/music/movies isn't needed and just a waste of money.
I've also seen a lot of people saying the memory card speeds with the galaxy s are bottlenecked right now, so your not even going to get top speeds with a class 6.

Vegastouch said:
Just cost you more. Do you really need a class 10 for this phone? Avatar is on a card that isnt even a class 2.
Click to expand...
Click to collapse
While the card isn't marked, it tests out at just over 4MB/s which would put it in a class 4.
And we should be clear that the class refers to the write speed. A class 2 will read at 10 MB/s just like the other classes. Where you run into issues with class 2 cards is when you start modding or running programs from the sd card. If you use the card for a swap partition or something the write speed now plays a major factor in the usefulness.
If all you want it for is to place your music files on there and listen to them, then a class 2 will be plenty. That was my initial thought when I bought my 1st 16 GB card for my mytouch3g. Then I got into custom roms and found myself limited.

How do you test the speed of the SD card?

What size microsd card are you looking for? If its a 32GB, I have only seen a Sandisk microsd in Class 2. As far as I know there are no higher classes at this time. Hopefully that will change soon. I would like to get all of my music onto one 32gb card.

designerfx said:
Just to help out here...
the difference between class 2 and class 6 is the exact same as class 6 and class 10. Remember the cd-rom speeds (52x, etc)? That's how the speed is calculated for a SDHC card. So a class 2 = 2x cdrom, class 6 = 6x, class 10 = 10x.
whether our hardware has capability to handle what a class 10 can do, that I don't know. I'd definitely advise to get something with more space than a 2GB card though - I'm not sure everyone needs a 32 (personal opinion/long discussion), but I absolutely agree it should be improved upon.
Click to expand...
Click to collapse
This isnt exactly true. with cdroms the X stands for how much faster it would spin in relation to a audio cd. So 1x ment it spun at the same speed as a audio cd. 2x was twice, ext ext. And this was a max speed.
Classes for SDCard stands for the minimum transfer speed. class two is at least 2mbps, class 6 is 6mbps, and so on.

frankencat said:
How do you test the speed of the SD card?
Click to expand...
Click to collapse
google FDbench
it will test the read and write speed as well as operations per second.

I still can't find a 32gb microsd class 10, anyone find one for sale?

Class 10
Class 10 limitation presently is 8 gig for all brands except the Kingston and soon to be released Silicon Power. The Kingston brand never benches as advertised, so they are not reliable from my point of view. Silicon power has been pretty solid on their claims from my testing versus their claims, but I have not yet got my hands on the latest class 10 16 gig, I have been trying to buy for the since 10-1-2010 but not out in USA yet.
Kingston (in my opinion) is rife with false claims and I find their products have always been sub par.
Flashing and alike works better with class 6 over class 2 & 4. So, if you really want more memory the only 32 gig class 6 I have seen advertised (amazon) are: Transcend, Centon, and Komputerbay (what a name?!) 32 gig Class 6
Other than that, we wil just have to wait until they get the algorithm figured out for a micro ad card with that much ram and that fast.

Get the app "sd card speed test" it works ok Im sure there are others as well

I imagine the only reason you would need a Class 6 card or above is if you plan to take a lot of HD video. Apart from that, even a Class 2 is fast enough to keep up with the still camera, not to mention anything that just requires reads, like music or movie playback.
As for running apps off an external SD card, why would you ever want to do that? You can load close to 2GB on the internal app space, which is likely way faster than any mounted external SD card. I feel like an app whore and I'm not even close to using half that space. By the time apps start getting large enough that it's an issue, we'll be on the Vibrant 2 or beyond.

glad that you asked
merrifield69 said:
I'm looking to buy a new MicroSD and wondering if getting a class 10 over a class 6 would make a significant difference to the phone (if im using data2sd and or apps2sd)
Thank you!
Click to expand...
Click to collapse
because I just picked up a 16G class 10 by WinTec last week and it is VERY fast from boot up with 9G occupied from 15G available (wondered 1G gone to? and that is a lot of gone G lol). It was $42 wo tax expensive but so far the fastest.

Whoohoo
mine 16G class 10 tested 2x >8M and 1x >9M write, 3x > 18M read and it was probably so fast that the result said "unknown class" lol. x means 1 run with 2MB buffer setting. Downloaded app call SD card speed tester.

There are now some 32GB class 6 SDCARDS on the markey, and with 2.2 and installing apps to SD that might matter. It might also matter if you have a TON of music and images, as "Scanning SD for Media" would be faster.
You will pay money for the time savings though.

32GB MicroSD Wait!!!

I recently picked up a 32gig MSD for my Evo as I kept running out of room on the 16gig card. I went from a 16GB Class 6 to the latest Class1 or 2 that SanDisk has. My phone takes around 3 minutes to boot now at best. Looking at gallery or anything like that is SLOwwwwwwwwwwwwwwwwwwwwww. If you are thinking about and have lots of pics/videos and use App2SD like I do, you will only be disappointed in the end results with the Sandisk card. Just sharing so others can save and wait for a real card.
Lisnup

Interesting...I have a 32gb sandisk class 2 card that is 3/4 full and I have very little if any delay...I only have 8.19gb space left.

MsRandall said:
Interesting...I have a 32gb sandisk class 2 card that is 3/4 full and I have very little if any delay...I only have 8.19gb space left.
Click to expand...
Click to collapse
I have 11 gigs left at current and the only change I did was this card and I can say that performance of the gallery and boot time has severly suffered from what my old card gave me.

the lower the class number on the card, the slower the transfer rate. So your 16gb class 6 may have less room, but its way faster than a 32gb class 2. Dont know if this helps or not.

gsx62391 said:
the lower the class number on the card, the slower the transfer rate. So your 16gb class 6 may have less room, but its way faster than a 32gb class 2. Dont know if this helps or not.
Click to expand...
Click to collapse
+1. I switched from the Class 2 8GB card that came with it to a Class 10 16GB card and the differences are staggering. I never benchmarked my class 2, but I get around 17.8 Mbps read/write on this one. On my 8GB card it would take about nine minutes to transfer a movie from my phone, now it takes under a minute.

that isnt always true that cards are just slower. The class system is a min spec system meaning they have to atleast hit this to make it they can be well over it depending on the chip used

Most people benchmarking the San disk 32gb cards are finding them to perform closer to class 4 then the indicated class 2. Check out the thread in the accessory section. Perhapse your card is defective.

Sandisk. The Yugo/Walmart of the mem card world. None of the pro photographers that shoot digital that I've met will even touch them.

lisnup65 said:
I recently picked up a 32gig MSD for my Evo as I kept running out of room on the 16gig card. I went from a 16GB Class 6 to the latest Class1 or 2 that SanDisk has. My phone takes around 3 minutes to boot now at best. Looking at gallery or anything like that is SLOwwwwwwwwwwwwwwwwwwwwww. If you are thinking about and have lots of pics/videos and use App2SD like I do, you will only be disappointed in the end results with the Sandisk card. Just sharing so others can save and wait for a real card.
Lisnup
Click to expand...
Click to collapse
I've had a similar experience with my 32GB class 2 sandisk MSD.
Sent from my PC36100 using XDA App

My 16gb class"6" sandisk POS clocks at class 4, barely. Got what I paid for at $30 I guess. (last time I buy that crap)
Borrowed from another post! View attachment 474476

My 32gb clocks right at class 4 just as its labeled, I like it seems to work just fine
Sent from my PC36100 using XDA App

My 32gb. Class 2 SanDisk clocks in at Class 6... lol, I guess I got what I paid for. It suck BC I just paid for a 32gb Class 4 Kingston BC I thought it would be faster.
Sent from my PC36100 using Tapatalk

Hd2 Scroll Lag?

A quick flick to scroll seems to be impossible. Does anyone know the registry tweak that edits the initial scroll lag? Thanks!
Searched but I cant find it?

Does no one know? Everyone is looking but no answers. lol.

rebump. Nyone?

use a compatible SD card

yshi41 said:
use a compatible SD card
Click to expand...
Click to collapse
um yes, thanks but no thanks. I have a compatible sd card. if it isn't i wouldnt be able to use wp7.
my card works and has always worked. even with android i had no problem.
So you're telling me you have super fast flick-ing action? I highly doubt it.
Anyone else with a better suggestion?

Yeah, I have one - change your SD card.

I have great scrolling, no lag at all. The SD card makes a huge difference. When I was using a class 4 kingston, wp7 was laggy and didn't run that well... it still ran and used the card, though. But now using a class 2 sandisk, wp7 runs as smooth as butter... no lag and battery life is much improved. What kind of card do you have? Cards with good random access speed is what you want for wp7... usually lower class cards have better random access speed than higher class cards. Class 2 sandisk seem to work consistently well, but I guess some people have had issues. But even cards that are same class and same brand, but have different manufacturing numbers or serial numbers will be very different performance wise.

i have a sandisk 8GB class 4. it has never had any problem.
are you guys telling me that by downgrading to a class 2, i may have a faster WP7 OS?
that is ridiculous!
can anyone confirm this?

I'm still using Class 4
I will backup my data and test this tomorrow.

lemonspeakers said:
i have a sandisk 8GB class 4. it has never had any problem.
are you guys telling me that by downgrading to a class 2, i may have a faster WP7 OS?
that is ridiculous!
can anyone confirm this?
Click to expand...
Click to collapse
You might... it really depends on the sd card. Sandisk class 2 cards made at one time can be very different than sandisk class 2 cards made 6 months later. Same with class 4 or with any sd card out there. When it comes to the random access speed, it can vary greatly... manufacturers don't test this speed and don't aim to make consistent scores of that. But usually the tricks that manufacturers do to get better sequential write scores on their chips end up hurting the random access speeds. That's why more class 2 cards are compatible and work better with wp7 than class 4, 6 and 10 cards. And if you are having lag, then that means you can definitely do better, because I have no lag at all at this point... maybe every once in a while I'll get a little lag here or there, but overall, it's VERY smooth. I haven't installed my apps yet... only like 10 or so apps from the market, and only copied one music album over so far, so maybe I'll get more lag when more is installed... not sure. I have 21gb partitioned over for wp7 on my sandisk class 2 32gb card. When I was using a kingston class 4, I definitely had a lot of lags and I hadn't even installed anything at that point. But I have heard that sandisk class 4 works good, too, but, like I said, when and what factory the chips were produced in can make a big difference with the random access speed which is what wp7 needs to be smooth.

cdguider said:
I will backup my data and test this tomorrow.
Click to expand...
Click to collapse
how was your test so far?
please let me know thanks =D

Lag ???? WP7 is smooth as butter, this is why I'm still using WP7 over LAGGY Android.
ps: I'm using Sandisk 2gig class 2

It's all to do with your micro SD card, my old Samsung 8gb card, ran ok, but would somtimes lag, not load marketplace, things would crash and the occassional autoreboot as well, so I ordered one of the Microsoft recommended sandisk 8 GB ultra microsd cards, not a single lag, no crashes, things run so smooth and fast its really quiet amazing. How ever many times and different ways you format your card if its not the right one it will never run wp7 smoothly

Have a Sandisk 16GB Class 2. in Marketplace lags, slow download, slow load pictures
I have downloaded `` Xbox Live Extras `` in Market, took 10 minutes to install, download deducted

jenzy1985 said:
Have a Sandisk 16GB Class 2. in Marketplace lags, slow download, slow load pictures
I have downloaded `` Xbox Live Extras `` in Market, took 10 minutes to install, download deducted
Click to expand...
Click to collapse
Could be a fake one? Whats the model number?
I have the 8gb and 16gb ones recommended for WP7 by sandisk and they work perfectly without any lag.

mickfarr said:
Could be a fake one? Whats the model number?
I have the 8gb and 16gb ones recommended for WP7 by sandisk and they work perfectly without any lag.
Click to expand...
Click to collapse
Fake, no why? I bought it yesterday in the mobile phone shop. The dealer said it was the new version. The old cards would have to send them back. Really no Joke

jenzy1985 said:
Fake, no why? I bought it yesterday in the mobile phone shop. The dealer said it was the new version. The old cards would have to send them back. Really no Joke
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You should take the class 2 sandisk back and order a class 2 sandisk from somewhere else... most class 2 sandisks work great with wp7. But like I said in several other posts, just because the brand and class are the same, doesn't mean the card will perform the same. They don't test the random access speed on cards so it's not consistent on cards, and it's random access speed that matters with wp7. I was just testing my cards today... I have one class 2 16gb sandisk with great random access speed and works great in wp7, and I have another class 2 sandisk that has bad random access speed and makes wp7 laggy. The read and write speeds were the same on the cards, though. My class 2 32gb sandisk has good random access speed, and my class 4 32gb sandisk I just got yesterday has even better, but my old class 4 sandisk 4gb card has terrible random access speed. My class 4 32gb kingston and my class 6 8gb kingston both have terrible random access speed as well.
Cards of same class from same manufacturer can have different chips made in different factories depending on when and where they were made. Also, a lot of the time, the chips the they make to have higher sequential read and write speeds will have worse random access speeds, so you will probably have better luck running wp7 with a class 2 than with a class 6 or 10. Microsoft reported this from their testing of memory cards for wp7. This doesn't necessarily mean a class 4 or 6 card won't work just as good or better than some class 2 cards, and it doesn't necessarily mean a class 2 card will work well. The problem is that the random access speed is not rated for cards so it's not kept consistent on cards. But at this time, it seems the class 2 sandisk seem to have the most consistent high random access speeds, but again, doesn't mean all of them will. Like I said, I have a class 2 16gb sandisk that doesn't work well (which is the one I bought retail), but the class 2 16gb sandisk that came with my phone works very well. Also, I just got a new class 4 sandisk 32gb card which I haven't tried for wp7 yet, but from benchmarking the card, it looks like it will work very well. I'm gonna test it with wp7 tonight.