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I was wondering how people rate the different SD memory cards?
I noticed Kingston has a 128 meg strip for $39.99 and a $10 rebate at:
http://www.shop.kingston.com/09promo/default.asp
I've read about Sandisk, so I know to stay away from them. But as far as speed wise, how would you rate other brands like Lexar, PNY, Kingston, Panasonic....etc...I am most interested in fast access times.
Looking for advise.
I've never seen anything close to Lexar's speed. It often measures at orders of magnitude better than others.
That said, the Sandisk 256 is my primary card while the Lexar 128 is for music (occasional use). In practical use I can't notice a difference. And I have no issues with the Sandisk.
I had read & seen a comparison table for SD card speeds on some site. According to them, Hagiwara SD 128MB was by far the fastest.
Try to do a search on Google with "Hagiwara". You might find this site.
or try www.hscjpn.co.jp which is printed on the Hagiwara box.
Having a Sandisk and a Hagiwara one, the second is faster by far.
Gear
Does it support Sandisk Ultra II, or SDHC and is that faster than class 6?
edit: is this okay?
http://www.play.com/Electronics/Ele...com-8GB-SDHC-Class-6-Memory-Card/Product.html
SDHC refers to an extension to the basic SD specification, allowing higher capacities. Hero supports SDHC upto at least 32GB, going on what I've read. I have an 8GB class 6 card.
Ultra xxx this & that is marketing bull with no standardised meaning in respect of performance. From what I can find via google, the Sandisk Ultra II is either class 2 or 4 (or possibly either depending on exactly which card you have).
The class system is a standardised classification of read/write speeds. Always check a card's class.
Is that card (Sandisk) ok? Depends what you want it for. If you intend to install apps to your card via, say, A2SD, I'd say no. Always get a class 6 for this, but it's a matter of personal choice. The standard doesn't imply this but collective empirical evidence also suggests higher class cards tend to be more reliable.
As to the linked card on play.com, it looks ok. Even the reviews seem reasonable, as long as you aren't inflicted with a broken lock tab a few earlier customers report.
TBH as long as you stick with 8GB class 6, as of the current date, you're at the sweet point for capacity-&-performance : price ratio. I bought one recently - think it was Transcend & about the same price.
OK, I think I'll buy that then. The only reason I want it is because at the moment videos always lag on my 2GB class 2 that came with it.
Thanks.
Micro SDHC
HTC Hero supports Micro SD HC and not the standard SD card. So check that before you buy. Im using Transcend 8GB Micro SDHC Class 6 Ultra. Works like breeze.. Also check 16 GB ones coz the price must hv come down.
Oh, so sorry - I didn't notice the card he linked to was not a Micro SD
Hell, that's the second time I've done that - I actually ordered the wrong size on one occasion. I hope this doesn't cost the OP. Even if ordered, they should take a return within 7 days, by law (in the UK, at any rate).
[Edit:] This is an ok deal.
As long as the micro as is class 4 or better then you should be ok with what ever you buy but give eBay a miss a lot of faked memory card and memory stick sizes comming from places like China and the like
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Sent via the XDA Tapatalk App
cauli said:
Oh, so sorry - I didn't notice the card he linked to was not a Micro SD
Hell, that's the second time I've done that - I actually ordered the wrong size on one occasion. I hope this doesn't cost the OP. Even if ordered, they should take a return within 7 days, by law (in the UK, at any rate).
[Edit:] This is an ok deal.
Click to expand...
Click to collapse
Hahahaha. Thats too funny. Lets just hope he doesn't tear it open as soon as its delivered, no chance of a return then.
Anyway,... I found two good prices,...
Samsung 8GB Micro SD Memory Card - £13.49
Its only a class 4, but speeds in the comments are ok:
Speed (read) 15MB/sec
Speed (write) 6 ~ 7MB/sec
And doesn't this sound interesting,... "Features:- Waterproof - Innovative epoxy moulding compound tech helps over 24 hours in sea water- Shock proof - Survives high pressure, including the crush of a 1.6ton automobile- Magnet-proof - Resists over 13 times the magnetic force of home theater speakers- Elegant Package- Content Protection- Faster Performance"
The 2nd one is what CAULI had found, only slightly cheaper,...
Transcend 8 GB Class 6 microSDHC Flash Memory Card with adapter - £13.99
One customer states "I was getting write speeds of over 6MB I think the fastest was something like 6.70MB per second!"
BUT
Another says "Write speed with this card is the slowest of the lot, barely creeping above 5.3MB/sec"
Hmmmmm,....
Any more advice anyone?
I recently purchased the Samsung 8GB Micro SD class 6 Memory Card from play.com for use in my Hero and it works great with Apps2SD
Thanks for the tips everyone
There's always ebay... I got my 8gb on there for £6 inc. p+p, you can never beat an ebay deal...
I am going to buy the 32 gb Prime (with keyboard) and have been researching memory card options. I am leaning towards the following:
1. Lexar High Speed microsd 32gb Class 10 (for the device)
2. Sandisk Extreme SDHC 32gb class 10 (for the docking station)
I will use this to watch movies, play music, surf the web, take notes, use apps, and play emulators.
My only concern is I've heard the class 10's have trouble with speeds on smaller files/apps/programs. Will that be an issue? Or will these two cards be a good setup?
Pretty much everything will be "slow" on working with smaller files / programs due to file system overhead.
Doesn't matter if it's a class 2/4/10/1,000.
John Kotches said:
Pretty much everything will be "slow" on working with smaller files / programs due to file system overhead.
Doesn't matter if it's a class 2/4/10/1,000.
Click to expand...
Click to collapse
I've read similar things as well. You will truly be fine if you just get a Class 4 and save the money.
irishtexmex said:
I've read similar things as well. You will truly be fine if you just get a Class 4 and save the money.
Click to expand...
Click to collapse
with smaller files (a few data blocks in size) you have as many writes to the file system management space as you do data block writes.
with large files there are much fewer writes proportionately which is why large files have higher throughput.
Sent from my MB855 using Tapatalk
I went with a 32gb class 10 pny micro sd from newegg. It was 47.99 and I finally tested it last week. Wrote video/music files at 11.5-12mb/sec. Some of the other class 10s had reviews claiming they only wrote at class 4 speeds. I can't stand how slow my class 4 16gb in my phone us...
Hey cyi1 is there a chance you would mind testing the write speed using your phones sd card too just to get a view of the speed difference from class 10-4?
Thanks in advance if you can. I'm sitting here trying to decide whether I get the 32gb class 4 or the 16gb class 10 as they are about the same respective price here.
distho said:
Hey cyi1 is there a chance you would mind testing the write speed using your phones sd card too just to get a view of the speed difference from class 10-4?
Thanks in advance if you can. I'm sitting here trying to decide whether I get the 32gb class 4 or the 16gb class 10 as they are about the same respective price here.
Click to expand...
Click to collapse
I second that, would like to know this aswell. please let us know.
You might want to give this a read.
I'd also suggest getting SD cards from a source with a good exchange policy. The speeds can fluctuate wildly within a class and even from idenetical cards from the same manufacturer.
So, what ever cards you get, test them and if not-acceptable, exchange them.
I stated this in the "Ultimate Accessory" thread. But I'm going to say it here to.
Don't buy the Patriot MicroSD 32GB Class 10. It's awful and I'm not the only one stating this. It used to be $100+ (I bought it when it first came out), but now it's like $40 because people realized how crappy they are. Speed throughput was never the problem, but they randomly corrupt and when it DOES happen, it's bad. Mine corrupted on me 3 times in only a few months. Each time I was lucky to have had a backup (Ti Media Sync) and managed to save just about everything. The first time I lost a lot of pictures that hadn't backed up yet.
Anyway, the corruption doesn't come from using USB or anything. Everytime mine randomly corrupted, I was using it away from a computer or charger. First time I was watching a video off the card (admittedly porn) and the second time I was taking a picture. Third time I don't know because the phone was in my pocket in standby and when I pulled my phone out to show someone a pic from the phone it wasn't there, along with the rest of the stuff that was on the SD. Oh, and the first time this happened was on my Nexus One, not my Sensation.
Anyway, I replaced it with the Samsung 32GB Class 10 (bought it for just over $80) and it's been rock solid so far (2 months in). Speeds are pretty much identical to the Patriots. I use "Boot Manager" and dual boot a couple different ROMs off it, and they all fly.
Just wanted to give you guys a heads up.
I went "cheap" on a class 4 Transcend 32GB for both my photon and my upcoming Transformer Prime.
In actual copies, I was seeing in the 6-7 MB range so I won't complain.
I purchased the ADATA 32GB Class 10 from NewEgg and it works wonderfully. I haven't done any testing beyond copying 4GB of video files to it, which copied at a rock solid 17MB/s! I'm impressed needless to say.
Model AUSDH32GCL10-RA1
Could you run a crystalmark benchmark on your card(s).
If the transcend random 4k R/W speeds are decent, that may be the ticket for me.
Thanks
curreyr:
i can, but I won't get to this until Sunday when i get home.
6mb/second was not on random writes, it was on bulk copies of mp3 files for the phone
Sent from my MB855 using Tapatalk
no problem, and no real hurry (since like others in the holding pattern to actually get a prime).
My wife's xmas gift of a new camera is getting a SanDisk 32gb class 10 "extreme" (SDSDRX3-032G-A21) that I plan on running crystalmark tests on next week.
I might even hold off getting a micro sd until 64gb cards drop closer to $100 ... (e.g SDSDQY-064G-A11A might be killer at ~$100)
curreyr said:
Could you run a crystalmark benchmark on your card(s).
If the transcend random 4k R/W speeds are decent, that may be the ticket for me.
Thanks
Click to expand...
Click to collapse
Attached are the results... It's just under 5 in sequential mode...
I was also wondering this. Will there be any difference in watching a video file (1080p) between class 4 or 10?
Large video files will be skewed towards the sequential mode -- which tested @ 20MB per second. That's 160Mbits / second.
In theory, this class 4 card could playback a maximum bit-rate blu-ray iso without a problem. Blu-ray maximum bit rate is 48 Mbits (or 6 MBytes) / second.
Regards,
Class 4 vs 10
Unless you are recording HD video to the SD card, class 10 is a BIG waste of money. The class only refers to the write speed, NOT the read speed. If you are just loading videos or music onto the SD card, then even class 2 will be fine. It may take you longer to load the original files to the card, but it is NOT going to be slower in reading the data compared to class 10.
These class ratings are really needed for HD video camcorders and high FPS (frame per second) cameras that demand high bit rate & speeds. I use a 6 for 720p video on my nikon dslr and for 4-6 fps 14 megapixel shots, but class 2/4 for my phone/tablets where it is just used to store movies, songs, pictures, etc...
I just picked up 2 Samsung class 10 32gb Sd cards from fry for $35 a piece. I think it was a wise decision and will help me out in the future. I know it's overkill but I think for that price it was worth it. So now my Prime will have 96gb of storage when I hook up my dock. That is truly overkill as well, but who knows when I might need all of it lol.
After a huge thread I read here about classes, I changed my mind and went with a class 4 for the Prime (was thinking I mist get a class 10). I picked a Transcend 32gb class 4 off of Amazon for $33 delivered.
...to run optimally while recording video/taking pics?
Or can you get by with a lesser class (6) or so?
Just wondering what everyone is using and why.
I have a 32GB class 4 SanDisk and it works great.
Sent from my Energized Amaze
I also have a 32gb class 4 (SanDisk). I haven't noticed any lag when picture taking or video recording.
I was looking up what kind of MicroSD to get my Amaze about a month ago and decided to get this one. Here are some things I picked up while doing the research.
1. Small read/writes usually takes place on the SD cards. Getting a class 10 with good write speeds for large files doesn't mean good speeds with small files.
2. SanDisk is a good brand. Mine is advertised as a class 4 but performs at class 6.
3. If you're looking at the Patriot class 10 microSD, I recommend that you stay away from it. People have been reporting errors with that card on Android devices. Patriot said that they've fixed the issue, but there are still a lot of bad cards floating around. You never know what you get.
4. If you do go with SanDisk, get it from a reputable dealer (not eBay). There are tons of SanDisk counterfeits.
Thanks so far guys - exactly the input and information I was seeking.
I have a 8g Class 6 from my G2, and a 4g Class 10 I paid $6 for to test out - both by Transcend off newegg.
Will get something with more capacity soon, and was wondering which direction to head.
I just got a patriot 16gb class 10 about a week or two ago from newegg for $10 ($20 with a $10 rebate) and it's awesome. I mostly notice it when transferring files (videos and music) between my phone and laptop. I had a 16gb class 6 ADATA before this one, but it was only 12gb cuz I originally used it with my G1 and had it partitioned.
My wifi downloads have been quicker lately, but I'm sure that's just coincidence. Anyways, good luck!
Sent from my HTC_Amaze_4G using XDA App
Higher classes are more prone to errors. With the bitrate phone records hd. A class 2 is way more than enough. Go with a class 4 SanDisk. Higher classes have better sequential good for recording movies etc. Lower classes have better random read right and less prone to long term damage. The higher class you go the more risk you'll have of getting corrupt data etc. The only benefit of higher class is better sequential write speeds. ALWAYS GO with sandisk
seansk said:
Higher classes are more prone to errors. With the bitrate phone records hd. A class 2 is way more than enough. Go with a class 4 SanDisk. Higher classes have better sequential good for recording movies etc. Lower classes have better random read right and less prone to long term damage. The higher class you go the more risk you'll have of getting corrupt data etc. The only benefit of higher class is better sequential write speeds. ALWAYS GO with sandisk
Click to expand...
Click to collapse
If I had known this sooner, I wouldn't have invested in a 32GB Class 10 disk (not sandisk). So far, I've had it crash twice, and had to reformat every time. It's rather annoying and you do lose all your data; so for those out there still considering it, please add this to your factors of consideration.
16 GB class 6 SanDisk. No lag. No problems.
Sent from my HTC_Amaze_4G using XDA App
daeboe said:
If I had known this sooner, I wouldn't have invested in a 32GB Class 10 disk (not sandisk). So far, I've had it crash twice, and had to reformat every time. It's rather annoying and you do lose all your data; so for those out there still considering it, please add this to your factors of consideration.
Click to expand...
Click to collapse
Always buy sandisk. I have not heard of any sandisk going bad but heard of all other brands going corrupt over and over. I don't believe sandisk has a class 10 or class 8. They always stick to stability and quality and is worth the price. Besides a class 4 sandisk usually outperforms a class 6 or 8 of other brands. Search for my posts regarding memory topics in accessories I talk about sequential read write and random read write and how the bit rate our phone records video in HD is waaaay below even a class 2. a good balance of sequential read write (long files such as videos or movies) and random read write (gigs of small files) is either a class 4 or class 6 if i was going to go allout I would get the new 64gig card made by sandisk for mobile phones. I think its a class 6
seansk said:
Always buy sandisk. I have not heard of any sandisk going bad but heard of all other brands going corrupt over and over. I don't believe sandisk has a class 10 or class 8. They always stick to stability and quality and is worth the price. Besides a class 4 sandisk usually outperforms a class 6 or 8 of other brands. Search for my posts regarding memory topics in accessories I talk about sequential read write and random read write and how the bit rate our phone records video in HD is waaaay below even a class 2. a good balance of sequential read write (long files such as videos or movies) and random read write (gigs of small files) is either a class 4 or class 6 if i was going to go allout I would get the new 64gig card made by sandisk for mobile phones. I think its a class 6
Click to expand...
Click to collapse
I had to send my 32gb class 10 Sandisk in to get replaced because of data corrpution. I agree though, Sandisk is great.
I have a Samsung class 2 8gb. Pretty good for waht I use it
Sent from my HTC_Amaze_4G using xda premium
I have SanDisk 16GB Class 2, I bought a class 10 and its actually slower than my Class 2. Plus yes, it's more prone to error. My previous android phone would freeze up because of the class 10. Moral of story: SanDisk has great speeds even on class 2
Sent from my HTC Amaze 4G using XDA App
Binary100100 said:
I had to send my 32gb class 10 Sandisk in to get replaced because of data corrpution. I agree though, Sandisk is great.
Click to expand...
Click to collapse
sandisk doesn't make class 10's or 8's, but It could be imported or something or maybe even a knockoff...the only way to make sure you have a sandisk is to call them and ask if they actually sell class 10, to my knoweldge the fastest microsd they sell is a class 6. can you point me to their webiste or somewhere, I am very interested. they do sell class 10 SD but not micro sd. I am very curious where you got this and how sandisk is actually replacing this...I have looked all over for a class 10 micro sd.
you can buy it at newegg: for 120 http://www.newegg.com/Product/Product.aspx?Item=N82E16820171571
or on their webiste for double the price lol: http://www.sandisk.com/products/mobile1-memory-products/sandisk-ultra-microsdxc-card
don't forget to increase your read ahead cache for the sd interface too. 2048K should be the optimal size.
So I'm looking to upgrade from my 4 gig Kingston microSD card to something bigger in preparation for CM7 and other things that should give the NT more capabilities in the future. I tend to use memory rather heavily: listening to high bit rate music, downloading lots of apps, and lots of games (especially RPG ROMs). So here's a couple questions I have:
At what memory range should I be looking? Is 32gb overkill?
Is there any brand that I should stay away from, or any that I should prefer?
Are the rates between a Class 4 and, say, a Class 6 SD noticeable?
What places are known to offer some good deals on SD cards?
Should I not even worry about more memory because of the NT's internal memory capacity?
Any thoughts or suggestions are appreciated.
http://forum.xda-developers.com/showthread.php?t=1150369
Personally I got a sandisk 32, mainly because I am about to travel so wanted the space for movies photos etc
id get the bigger one. its better to have alotta space available, then be saying in a month "darn, not enough space for this app". better to have alot of free space then have, just a smidge too little
plus if you have alot of apps it will make your back ups larger.
a bigger card would mean your could keep a couple back ups on deck.
Get a 32Gb Sandisk class 4. I didn't get a 64Gb because its way too expensive.
More room for stuff is always better.
Sent from my LG-P990 using Tapatalk
Just to add, nt only supports up to 32 gb sd.
And, you would want a card with a higher class (i.e. class 10) for viewing movies, listening to high quality music, or running an os from your sd card.
Sent from my TARDIS.
I would go with the 32GB if price is not an issue.. you can never have too much room.
Make sure you buy from a reputable place.. fake cards are common on ebay and can be problematic in both performance and capacity. I usually stick with Sandisk or Kingston for brand but i'm sure there are other good ones... these are just the ones i have had success using.
I have both class 4 and class 6 cards and haven't really noticed any difference.
teflonrico said:
Make sure you buy from a reputable place.. fake cards are common on ebay and can be problematic in both performance and capacity. I usually stick with Sandisk or Kingston for brand but i'm sure there are other good ones... these are just the ones i have had success using.
Click to expand...
Click to collapse
Transcend has also proved to be a very reputable brand. Amazon brand cards are also good.
Sent from my TARDIS.
emfetz said:
Just to add, nt only supports up to 32 gb sd.
And, you would want a card with a higher class (i.e. class 10) for viewing movies, listening to high quality music, or running an os from your sd card.
Sent from my TARDIS.
Click to expand...
Click to collapse
The class system only sets the write speed, if you look at the link I provided you will see a higher class cards is not always better for everyday use. Especially if you plan on running your os off it.
i have a 32gb sandisk class 4 in my NT. not sure what i had been loading in but now i am left with 10gb only. haha.
AmazonBasics
I went with the 16GB AmazonBasics Class 10. Great performance for the price (exceeds the rating). Rock solid so far.
http://www.amazon.com/AmazonBasics-...H4U0/ref=sr_1_6?ie=UTF8&qid=1329310724&sr=8-6
slgooding said:
I went with the 16GB AmazonBasics Class 10. Great performance for the price (exceeds the rating). Rock solid so far.
http://www.amazon.com/AmazonBasics-...H4U0/ref=sr_1_6?ie=UTF8&qid=1329310724&sr=8-6
Click to expand...
Click to collapse
For how long you have it? Im looking forward get one of those but I wanted to know better about its quality and functionality in the Nook tablet.
~ Veronica
Sent from XDA premium using my Nook Tablet
Moved To Q&A
We now have a Q&A section. Please post all questions there
I purchased it about a week after I got my NT. So I've had it since the beginning of January. Not that long to really determine the longevity of it. Pretty good reviews overall on Amazon.
Do you know of any good apps to test out the card? I could run them and get you the results.
lavero.burgos said:
For how long you have it? Im looking forward get one of those but I wanted to know better about its quality and functionality in the Nook tablet.
~ Veronica
Sent from XDA premium using my Nook Tablet
Click to expand...
Click to collapse
I bought a 32GB class 4 Team MicroSD. No complaints thus far. Speeds as reported by SD tools;
Write: 4.7MB/s
Read: 18.1MB/s
The nook write cache is really crippled. It's set to 128KB.
Here's my performance with the AmazonBasics 16GB class 10 at various cache settings:
128KB
Read: 18MB
Write: 5.6MB
1024KB
Read: 18MB
Write: 14.3MB
2048KB
Read: 18.4MB
Write: 14.6MB
3072KB
Read: 18.8MB
Write: 14.6MB
4096KB
Read: 18.1MB
Write: 13.9MB
I'll probably stick to 1024KB to speed up smaller writes.
I use Transcend 16 GB Class 10 microSDHC TS16GUSDHC10 cards in all of my devices (2 android phones, Nook Tablet). Works great.
Movies can be transferred to the memory card very quickly, using the external cardreader (writing speed is about 19 MB/sec).
price is about $25 on amazon.com
I would always go with the highest amount of space 32 gb class 10. I always shop for my electronics at Newegg.
ag94 said:
I use Transcend 16 GB Class 10 microSDHC TS16GUSDHC10 cards in all of my devices (2 android phones, Nook Tablet). Works great.
Movies can be transferred to the memory card very quickly, using the external cardreader (writing speed is about 19 MB/sec).
price is about $25 on amazon.com
Click to expand...
Click to collapse
mmm interesting and no problems at all? For how long you've use it in your Nook tablet?
Sent from XDA premium using my Nook Tablet
lavero.burgos said:
no problems at all? For how long you've use it in your Nook tablet?
Click to expand...
Click to collapse
I use NT with Transcend 16GB for last 2 weeks. No problem.
Some high speeed (class 10) cards don't work with old Motorola smartphones, e.g. Milestone XT720.