my memory card is samsung 8gig class 2
if i change memory card to HC 8gig class 4 speed of some of the games such as nova 2 or backstab will change even low value?
The change in IO throughput from a class 2 to a class 4 is fairly minimal, there will be an increase, but the textures are not what slows down the game, it may load a little faster, but the playability will be the same.
for more reading on understanding speeds of the class system visit
http://en.wikipedia.org/wiki/Secure_Digital#Speed_Class_Rating
Related
I'm trying to decide if i should go for space, or speed.
For those of you that bought 32gb cards, are they class2? and if so do apps and such run off it fine, playing movies?
Class 6 is much more fast, and a class6 16gb card is still half the price as a class 2 32gb card.
Just looking for guidance here, do we need more then class2 for our phones.
Plan on putting movies and apps and stuff on the card.
I have a 16GB class 2 card in my Cappy, and I can play 720p video off it without a single stutter, and I never did install the lagfix, so class 2 SHOULD be fast enough, depending on what you want to do with it.
But right now, the cost of the 32GB cards is, I think, prohibitive. It costs > 3x what I can get a 16GB card for, and thus far, I have not filled my card yet.
I would go with a faster speed for the bigger size card, class 2 would be too slow if you are read/write onto it constantly; For the best bang of your buck, the Polaroid 16GB microSD (made in Japan by PNY) from Frys is going for under $20 (after rebate); Even though it is labeled as a Class 2 card, but under most SD benchmark app, it is detected as a Class 4 card (4.5 MB/s Write/15 MB/s Read under the 300MB file R/W test in SD Card Speed Test)
I would rather take a 2GB class 6 over a 32gb class 2. Class 2 is so unbelievably slow its unbearable. I use my phone as a usb drive very often. In my previous phone I had an 8gb class 2. It was so slow I thought the card was broken. So I RMAed it and the new one was the same. I realized that it just takes like 8min/gb to transfer to it. (and no its not faster in this phone)
Class 4 is standard, anything less is a waste of silicon and plastic.
Class 6 is about as fast as your average-quick USB thumb drive.
Yes class 2 is fast enough to run programs and play back video, but you'll spend a lifetime transferring those things.
Not worth it IMO. Get an 8gb class6 if cost is an issue. Also, don't go with any crappy random manufacturers. I find that a class 6 from 'craptasticMEM' is nowhere near the speeds it should be, and in fact usually slower than a clas 4 I have from kingston.
The class rating has nothing to do with playback speed, only write speed. Copying files is faster, but how often are you loading up your SD card from your computer?
I am using class 2 and it is recording video just fine. I am not sure why above poster claims "class 4 is standard" - that would imply that class 2 is sub-standard. It is not, it just has slower write speed.
Keep in mind that if you lay out the big bucks for a class 6 32GB card today, it will half the price in a few months.
Now in my HD Camcorder it requires Class 6 to record 1080P - our phones have no such requirement, so anything above class 2 will help in initial data transfer from PC - after that you may never, ever see any benefit.
alphadog00 said:
... I am not sure why above poster claims "class 4 is standard" - that would imply that class 2 is sub-standard. It is not, it just has slower write speed.
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Yes, sorry you're correct. Class 4 is standard in my gauge of memory cards/usb drives. All the classes "should" perform fine. The higher classes are obviously faster (with significant brand to brand variation). I find that they are faster at everything though. Not just write, but read as well. A class 6 card is as smooth as the internal memory in the captivate. A class 2 card is abysmal at everything (in my experience). I say class 4 is standard because class 2 is really bad...
eatkabab said:
Yes, sorry you're correct. Class 4 is standard in my gauge of memory cards/usb drives. All the classes "should" perform fine. The higher classes are obviously faster (with significant brand to brand variation). I find that they are faster at everything though. Not just write, but read as well. A class 6 card is as smooth as the internal memory in the captivate. A class 2 card is abysmal at everything (in my experience). I say class 4 is standard because class 2 is really bad...
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It could be my blindness - not physically, but the ignorance of not having a class 4 or 6 to compare to my class 2. My class 2 works fine for me, but if the class 6 stuff gets cheap I will head on over to it.
alphadog00 said:
It could be my blindness - not physically, but the ignorance of not having a class 4 or 6 to compare to my class 2. My class 2 works fine for me, but if the class 6 stuff gets cheap I will head on over to it.
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My 32GB Class 2 reads/writes as smoothly as the internal card on the captivate as well.
locsplitter said:
My 32GB Class 2 reads/writes as smoothly as the internal card on the captivate as well.
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lol no
internal is like class 10 i believe
locsplitter said:
My 32GB Class 2 reads/writes as smoothly as the internal card on the captivate as well.
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its not healthy to lie
you guys are missing the fact that the class ratings are a MINIMUM rating. a lot of brands will perform MUCH faster than what they have printed on them. just saying something is class X is pretty much pointless. it's just a guideline that is being loosely followed. benchmark and move on
If your running apps off of your card than believe me there is noticable difference between a class 2 and a class 6, and yes dont go for a no name.
Sent from my SGH-T959 using XDA App
demize! said:
If your running apps off of your card than believe me there is noticable difference between a class 2 and a class 6, and yes dont go for a no name.
Sent from my SGH-T959 using XDA App
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I don't believe you. It 100% fully depends on the card. Some class 2's are faster than class 6's. Ratings are lies.... benchmark ftw!
True that. Ive found significant differences by brand. However, there is definitely a noticeable difference between a class 2 and a class 6 card.
What you get depends on personal requirements more than anything else. Faster or more storage?
Hi,
I've been following the discussion on faster IO here by mounting extra stuff back on the SD card. I believe that to take advantage of this a faster microSDHC card can only help.
My card is a SanDisc 16GB Class 2 job, I just transferred it from my old N97 mini.
Looking around I noticed that generally the fastest is a class 6 although Kingston now seem to produce a class 10.
Of course Class increase == $$ increase.
I noticed that one site mentioned low speeds with a class 6 when using a benchmark tool, SD Card Speed Tester from the market.
Of course I just had to download it and see what my lowly class 2 card would do.
B***dy H*ll it exceeded class 6 cards and achieved:
Write Speed is 9MB/s
Read Speed is 15MB/s
Screen shot attached.
So my question is, how likely is it that it really is a fast card or just that the BM tool got it wrong ?
the "class" mentioned is actually the minimum r/w speed rated for the card, and branded cards often have speeds exceeding the rated class easily, so yeah, it is a fast card, no doubt
Thanks,
This was a "bounce my thoughts" type of question. You've confirmed my thoughts.
Just as a sanity check I later tried my other class 2 card, a 4GB job that came with the phone. It was 3-4MB/s write. That improved my confidence that the SD speed app was producing reasonable results.
Hello,
I use a custom rom with app2sd on my desire.
But my micro sd card is a class 2 4gb.
Do i notice speed increase with a class 10 or 8 or something?
Or isn't it noticable and could i better keep using this class 2 card?
Sorry for my english!
The only speed diference I notice when using my class six over my class two is when I am transfering data to and from the phone.
Anyone know of a better 32GB MicroSD card than the Sandisk? It's only class 2, but its random write performance is leaps and bounds better than both the Kingston and the Patriot LX, which helps to prevent severe lag when using apps2sdext.
I had hope a class 10 Patriot would at least be as good, but the results couldn't have been more different. Ideally I would like more sequential write speed without having to sacrifice random write performance.
We have been using/ Distributing microSD Class 10 cards from Wintec. I am using there 16 GB Class 10 on a Samsung Captivate. If you could direct me to a Android test program you like, I would be glad to run it. I have had no problems since switching.
but sandisk is the best around! for the price.....
nokia or kingstone but i prefer sandisk for the price
i have a sandisk and the card is great
I have never found anything better or more reliable than Sandisk. No bells and whistles just solid performance.
i need this type of card
but with model to choose
The OCZ branded cards are good in my experience.
Lexar's apparently got some top-notch class-10 32giggers out...
You can order them straight from their website (they might be a little backlogged though).
Class 2 and 4 cards have better random access speed and random read/write than class 6 or 10 cards in general. To get higher sequential write speeds, manufacturers sacrifice the random access speeds. That's just how it is.
The best all around card I've ever found is Sandisk class 4.
My 32gb Sandisk class 4 outperforms any other class 10 or 2 32gb card I've tested in the random access and random read/write speeds. That's what's most important when using with WP7 or Android when using it for apps or OS files that need to be accessed quickly. Class 6 and 10 cards are setup to initialize the area of the card that is about to be used to make the sequential write/read quicker, but it takes extra time in the beginning to do the initialization. If your using the card where you need to access small bits of info from various parts of card quickly, you will do best with class 2 or 4.
Most people seem to assume that the higher the class, the better the card is for everything, but that's not how it is. Different purposes need different kinds of speed... cards with higher sequential speeds have lower random speeds.
zarathustrax...it seems to be a hot topic. after all, repetition is the best way to learn
Will Scripts Improve random access speeds?
zarathustrax said:
Class 2 and 4 cards have better random access speed and random read/write than class 6 or 10 cards in general. To get higher sequential write speeds, manufacturers sacrifice the random access speeds. That's just how it is.
The best all around card I've ever found is Sandisk class 4.
My 32gb Sandisk class 4 outperforms any other class 10 or 2 32gb card I've tested in the random access and random read/write speeds. That's what's most important when using with WP7 or Android when using it for apps or OS files that need to be accessed quickly. Class 6 and 10 cards are setup to initialize the area of the card that is about to be used to make the sequential write/read quicker, but it takes extra time in the beginning to do the initialization. If your using the card where you need to access small bits of info from various parts of card quickly, you will do best with class 2 or 4.
Most people seem to assume that the higher the class, the better the card is for everything, but that's not how it is. Different purposes need different kinds of speed... cards with higher sequential speeds have lower random speeds.
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Noob question: recently, scripts have been produced to, for example, speed the reading of photos in the gallery. Will those same scripts improve the class 10 cards such that their performance is better than class 4 cards?
Ashyford said:
Noob question: recently, scripts have been produced to, for example, speed the reading of photos in the gallery. Will those same scripts improve the class 10 cards such that their performance is better than class 4 cards?
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They may improve speeds a little in your phone, but it doesn't change how the sd cards controller acts. So no, it won't make class 10 have better random speeds and access times than a high quality class 2 or 4. The controller in the SD card and the actual NAND memory chip itself decides how the card reads and writes and the speeds it has.
andisk is the best
i want to know too . . . .
Hey guys, I'm currently using a class 2 sd card with data2sd. My phone lags like hell because all the apps are stored in the sd card partition. I was planing to buy a class 6 card. Would that stop the lagging that is happening now? or should I go and get a even higher class?
Class 2 is way too slow for data2sd. Actually its even slow for link2sd.
Data2sd requires minimum class 6 card for average performance.
There isn't much price gap between a class 6 and a class 10 card.
If I was you, I'd go for a class 10 card even if it costs a little more. That'd be worth it.