Whats the major difference between classes ?
http://www.newegg.ca/Product/Product.aspx?Item=N82E16820208573
Would that be a good buy ?
http://www.newegg.ca/Product/Product.aspx?Item=N82E16820220547
Compared to this one.. Obviously shipping cost neutralizes the price difference but why does class matter ?
Class 10 is faster. I don't have the specs. handy.
I would recommend the class 10.Much faster on read and write speeds.
I would say class 10. Of course. Lol. Its faster and you get full be recording with class 10. Though, I don't recommend patriot. Just read the reviews. I would say get the samsung one. Same price and better reviews
Sent from my SGH-T999
class 10 has faster sequential read/write speeds, class 4 has faster ram. if you want it to take photos/videos quickly or in high res, class 10. if not, the class 4 is faster for day to day use
Related
So i'm looking for a new Class 6 8gb SD card to replace my sandisk class 2 8gb sd.
In your opinion, what brand is best to go to, Transcend or Sandisk?
or any other brand, I would like to see options. What brand runs best with apps2sd and linux-swap? I'm currently using enomther's AOSP extpansion pack rom, but i'm thinking about moving to a HTC Hero rom, thus why I need a class 6 sdcard.
Does it really increase the overall speed of a rom?
So, in your honest opinion, which brand should I go to? Links will be appreciated, and I like amazon =D
Sandisk or A-data sd cards are the best.
Class 6 is hellofalot faster then class 2, i only have a class for now since i lost my 8gb.But you should get either one of those maybe transend if its cheaper.
I like my Transcend 8gb Class 6....just wish I could find a 8GB Class 8 or 16GB Class 10.
This is my SD card and it runs lightning fast.
.
blackknightavalon said:
This is my SD card and it runs lightning fast.
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I'm definitely going to give this a try, thanks for the help
jaboswell said:
I like my Transcend 8gb Class 6....just wish I could find a 8GB Class 8 or 16GB Class 10.
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Don't worry phones typically downclock the reader slot to keep battery consumption at a minimum. If you ask anyone to compare a 8gig class 6 vs a 16gig class 6 they will tell you the 8 gig is much faster then the 16. It's because the bigger card needs more voltage to get to the same speed as the 8 gig card due to it's more condensed package. Also this is to allow for less heat issues cause of course more voltage to the card slot means more heat.
psychoace said:
Don't worry phones typically downclock the reader slot to keep battery consumption at a minimum. If you ask anyone to compare a 8gig class 6 vs a 16gig class 6 they will tell you the 8 gig is much faster then the 16. It's because the bigger card needs more voltage to get to the same speed as the 8 gig card due to it's more condensed package. Also this is to allow for less heat issues cause of course more voltage to the card slot means more heat.
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so does that mean (in theory) that a 32gb would be super dooper slow? For linux-swap and such?
I'e never had any problems with transcend. I got my 8GB class 6 from Amazon for £14
So here is the question.Untill what speed can the cardreader of the Hero support?Class 2,4 or 6?Is there any point on getting a card above lvl2 for a phone anyway?I mean right now i have the default card on it and still i can see movies,photos play music etc pretty good without problems.Why should i choose class 4 or even class 6?
At the moment i found class 2 micro SD 16 giga for 25 euro and class 6 8giga for 19-20.Which should i pick?I am pretty sure that i can use even 16giga of data space but i am not sure if i can use higher speed rates than class 2.
You can choose any class of SD card you want, but the class 6 is faster and gives better performance. Trancend also have a 16GB class 6 card.
well i know that class 6 is faster.What i ask is if Hero can handle the speed or Class 4 or Class 6 and if there will be any real diference in performance.If yes in what application, since music , pics or even movies play good enouph in even class 2 cards.
You will notice it if you use Apps2SD and have a swap partition on your SD-card. Otherwise you won't notice the difference I guess.
Ludolf71 said:
You can choose any class of SD card you want, but the class 6 is faster and gives better performance. Trancend also have a 16GB class 6 card.
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This is a common misconception. A class 6 card is not necessarily faster than a class 2 card, because all that the class signifies is the *minimum* guaranteed sustained speed that a card can be written at.
It is perfectly possible for a class 2 card to outperform the minimums required for a class 6 card, so that a good quality class 2 card can be faster than a poor quality class 6 card.
My advice when buying an SD card is to look for independent reviews where the actual speeds are tested. For example, see here.
Regards,
Dave
foxmeister said:
This is a common misconception. A class 6 card is not necessarily faster than a class 2 card, because all that the class signifies is the *minimum* guaranteed sustained speed that a card can be written at.
It is perfectly possible for a class 2 card to outperform the minimums required for a class 6 card, so that a good quality class 2 card can be faster than a poor quality class 6 card.
My advice when buying an SD card is to look for independent reviews where the actual speeds are tested. For example, see here.
Regards,
Dave
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Very interesting
i have 2 gb sd card that came along with the phone. i presume its a class 2 card. however i get write speed of 9.6 mbps and a read speed of 12 mbps...what should b the class of this one...what i saw on the internet is that class 2 , 4 and 6 have write speed od 2,4 and 6 mbps respectively...is that correct??
akki1791 said:
i have 2 gb sd card that came along with the phone. i presume its a class 2 card. however i get write speed of 9.6 mbps and a read speed of 12 mbps...what should b the class of this one...what i saw on the internet is that class 2 , 4 and 6 have write speed od 2,4 and 6 mbps respectively...is that correct??
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why do you need this? if you have unmount issues, just buy a new one.. i bought a really cheap 8GB one in Indonesia (pure win for 10 USD) and it works perfectly (except i have organization issues now)
Class rating is just the minimum spec. Consider yourself very lucky to have one that exceeds the spec so much.
wally509 said:
Class rating is just the minimum spec. Consider yourself very lucky to have one that exceeds the spec so much.
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i just needed to know as a few roms need higher class sd to flash them...so i asked..?? if u could tell...
akki1791 said:
i just needed to know as a few roms need higher class sd to flash them...so i asked..?? if u could tell...
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Pardon me, but I don't understand. Is this a question or a comment?
By the way, capitalization makes a difference.
9Mbps would be slower than class 2.
9MBps would be faster than class 6.
I'm confused on the Class rating for SD cards. I understand it to be a write-speed rating, and in my usage I'm more concerned with read throughput. My goal is to watch 480p and 720p content without jitters, and I'm not sure if the higher class matters or not for reads.
Thanks!
The write speed is going to be the same as the read speed. With flash memory fragmentation doesn't effect read speed much because of the low access time. With writing the card has to find an empty cell and write which could effect the writing performance. The class signifies that under heavy fragmentation the card should write at the speed of the class (i.e. class 10 should be 10 Mb/s). Also, regardless of fragmentation the card should read at the speed of the class. So in your case if your not needing high speed write then a class 2 or 4 should be fine. I personally wouldn't go below 4 because you never know if you might need the extra speed later.
Looking at Wikipedia the class is both Read & Write.
I personally use class 4 16GB cards and they seem to do the job fine on the re-encoded 1080/720 content I have on them.
I have a Class 10 Patriot Micro SDHC card and it works fine. I also tested with a Patriot SDHC (full size) in the sock and works fine. Both tested with 720p H264 MOV.
Heh I would be worried if a class 10 (being the fastest you can get) was having issues
Sent from my Transformer TF101 using Tapatalk
a class 10 is perfect for anything and ull only spend another maybe 10then a class 4. i only get class 10s or higher for my phones and cameras just in case i need the extra power
Sent from my PC36100 using Tapatalk
Full size SD's are pretty similar in price between classes but microSD's are insanely different... £17 for a class4 16GB or £40 for class10
alex5790 said:
The write speed is going to be the same as the read speed. With flash memory fragmentation doesn't effect read speed much because of the low access time. With writing the card has to find an empty cell and write which could effect the writing performance. The class signifies that under heavy fragmentation the card should write at the speed of the class (i.e. class 10 should be 10 Mb/s). Also, regardless of fragmentation the card should read at the speed of the class. So in your case if your not needing high speed write then a class 2 or 4 should be fine. I personally wouldn't go below 4 because you never know if you might need the extra speed later.
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No. The class is the garunteed write speed, the read speed has no relation and can vary from card to card. I am using one of two cards in my tab, one a class 4 and the other a class 2 and neither have ever come close to having an issue streaming. The class 4 can read at over 16mb/s, Ive tested it.
The only reason to pay for a C6 or higher card is because you need to push data to it quickly., like recording video.
ryan stewart said:
No. The class is the garunteed write speed, the read speed has no relation and can vary from card to card. I am using one of two cards in my tab, one a class 4 and the other a class 2 and neither have ever come close to having an issue streaming. The class 4 can read at over 16mb/s, Ive tested it.
The only reason to pay for a C6 or higher card is because you need to push data to it quickly., like recording video.
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+1. This is the correct answer. Good cards typically read much faster than the write speed.
Read speed is not correlated to the write speed or class rating at all...and in most cases, it's way higher than the write speed...
so theoretically even a class 1 card (if you can find one) is able to stream 720P content without much issues..but it will take forever to copy the content onto the card.
my class 10 card reads over 30MB/s and my class 4 does around 16MB/s
What card do you have? I was looking into getting one.
Hey Guys
Am looking for a suitable Microsd Class rating ( am going for Sandisk, 16 GB or 8GB) for my Motorola Photon. I am going to install a lot of games, specially those Tegra 2 ones, Max Payne and others too, and alot of apps on the phone.And i might use Link2SD to move them to the SD card to keep Phone memory less occupied.
So as to what i feel is that i'd be requiring good read/write speeds for games, plus proper loading of apps (in time, i don't want lags at all). the problem is, according to the Price, i can go for 8GB class 6 or 16GB class 4. What do u guys think i should go for? would it really matter? i know class ratings are the Writing Speeds, but who knows?
Regards
Save up for a Class 10. There is a world of difference between a class 4 and a class 10 especially when using ROMs that have the SDSpeed tweaks.
I like class 4 personally as write speed really only affects installing imho. lower write cards tend to have higher read as well. SanDisk as a brand makes Damn fine cards which I think brand makes more difference than class overall.
Sent from my mopho
@Loki,
What about a Sandisk 8 or 16GB Ultra at UHS 1 speed?
i read the following on Wikipedia about UHS Cards
"Cards that comply with UHS show UHS-I or UHS-II on the label, and report this capability to the host device. Use of UHS requires that the host device command the card to drop from 3.3-volt to 1.8-volt operation and select the 4-bit transfer mode".
Is above compliant with Motorola Photon? I cant seem to find a Sandisk card with a Class 10 rating else than this one.
@Cornelius,
i think that when playing a game, the Phone might want to Read/Write data during play times even.Reading happens all the time, but Writing would also take place. But as Loki said, i'd be interested in trying these ROMs with SDSpeed tweaks. i really want no lags at all...
Regards
it really depends on the game, but writes happen way less than reads in most cases. class 10 is more for pictures and videos in my humble opinion. most games were it matters, it's a 400+ mb 1 Time download and then massive reads.
Sent from my mopho
@Cornelius
What about apps? they would also be fine with Class 4? i use a Sandisk 16GB class 4 in my Sansa Fuze all the time, and never had a problem with it, but i dont want my phone to lag at all. Apps might need to Read and Write in real time right??
Regards
if finances are an issue, than here is a G Skill brand 32gb class 6 for $15 shipped.
http://www.newegg.com/Product/Produ...ction-_-cables-_-na-_-na&Item=N82E16820231603
usually in 99.99% of cases read is more important than write. usually writes are so small they don't matter.
Sent from my mopho
Lexar 32GB Class 10 $26
I'm averaging 11MB Write and 21MB Read on Imperium Initiatve
high write or high read its always a compromise. if your that worried about hints of lag use the smallest sdcard you can get by with.
Sent from my mopho
@Lokifish Marz
One suggestion was Class 10 microSD, and when paired up with ROMs that have SDSpeed tweaks, where does the difference lie (imagining u have experiences with class 10 and SDSpeed tweaks)? What is better than when a class 4 is used?
Plus what tool do u use to get the Read/Write speeds? i suppose its on ur phone only? Also i am thinking of pulling the trigger on an 8GB Class 10 Sandisk. I live in India and Amazon is not an option.....only ebay.in is....
@Cornelius, i agree with what u say about reading going on way more than writing, but then what about SSDs in computers? the performance boost is just because of the Increase in read speeds and not write? I know it gets pretty complex in computers, swap and pagefiles, etc, but faster HDDs mean faster computers, and even though writing happens lesser than reading on the phones, but some writing must be happening that bottlenecks the speed of the phone. am i Right? just trying to learn here from u guys.
Regards
no I'm saying a class 4 usually has a higher read speed than a class 10 but yes the big boost from ssd hdd is the read in 99% of cases.
Sent from my mopho
psgarcha92 said:
@Lokifish Marz
One suggestion was Class 10 microSD, and when paired up with ROMs that have SDSpeed tweaks, where does the difference lie (imagining u have experiences with class 10 and SDSpeed tweaks)? What is better than when a class 4 is used?
Plus what tool do u use to get the Read/Write speeds? i suppose its on ur phone only? Also i am thinking of pulling the trigger on an 8GB Class 10 Sandisk. I live in India and Amazon is not an option.....only ebay.in is....
@Cornelius, i agree with what u say about reading going on way more than writing, but then what about SSDs in computers? the performance boost is just because of the Increase in read speeds and not write? I know it gets pretty complex in computers, swap and pagefiles, etc, but faster HDDs mean faster computers, and even though writing happens lesser than reading on the phones, but some writing must be happening that bottlenecks the speed of the phone. am i Right? just trying to learn here from u guys.
Regards
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I am not sure what class 4 Cornelius is using. I don't have one but do have a class 6 Lexar from the same family as my class 10. On Imperium, the class 6 was slower than the class 10 in every aspect:
Lexar 8GB
class 6
Write- 5.8MB/s
Read- 18.8MB/s
The SDpeed tweaks, when set up correctly, improve read speeds across the board. It does tend to max out at a read speed of 20-25MB/s on Imperium. Further tuning may improve this but haven't had the time. I haven't tried any of the UHS cards yet. The big drawback with lower class cards is going to be your write speeds, the falloff on write speeds is there but not as much.
I'm not saying that Cornelius is wrong, just in my personal experience with flash storage has been different. Having used flash storage as everything from regular use to building flash storage based workstations, the lower class rating has a noticeable impact on write speeds but not so noticeable impact on read speeds on a tuned setup.
I only use SanDisk cards, used to go Kingston but they kinda fell out a while back.
Sent from my mopho
I'm using the newer Samsung cards and they make quality memory as well. As cheap as a class 10 card can be had why not go for that over a lower class card?