Class 2 a little fast? - G2 and Desire Z Accessories

So I have a class 2 8gb sd card (sandisk) that I bought about a year ago. A similar one came with my G2 recently and I decided to test the speeds to use the faster one. The one I purchased a year ago, it turns out, reads at 10 MB/s and writes at 5.5 MB/s. I confirmed it with several trials. I thought that SD classes indicated speed... and that a class 2 = 2mb/s r/w, class 4 = 4, etc. This seems very fast, especially considering the other class 2 8gb that came with the g2 runs at about half the speed.
How come they vary so much? Is this card that I have faster than a class 6?

You are right when you say a class 2 should have 2 mb/s and a class 4 should have 4mb/s, but there is something you are forgetting: the class is the minimum write speed. I have a samsung class 6, which has a minimum 6 mb/s write speed, but it actually writes at 9.5 mb/s and reads at 17 mb/s. A card is considered to be a class 2 if during testing it can consistently score 2 mb/s.

Sandisk cards are/were known for being faster than their ratings.

I just bought a sandisk 16gb class 2 on amazon. I ran a speedtest and was consistently getting class 4 speeds and and made it up to class 6. I'm glad I didn't pay extra for that class 4.
Sent from my T-Mobile G2 using Tapatalk

I've ever had a bad experience with SanDisk MicroSD cards.
SanDisk MicroSD Cards (Class2):
Owned: 10 (Various sizes, 256MB - 2x512MB - 6x1GB - 1x8GB)
Broken: 10 (After less than a year, on Motorola V3x, Nokia E66 and HTC HD2)
- Speed: Avg. 6MB/s (HTC HD2) - Avg. 1MB/s (Nokia E66) - Avg. 4MB/s (Moto V3x)
OEM/unknown MicroSD Cards (Class2):
Owned: 3 (2x1GB - 4GB)
Broken: 0 (bought more than a year ago)
- Speed: Avg. 6MB/s (HTC HD2) - Avg. 1MB/s (Nokia E66) - Avg. 5MB/s (Moto V3x)
Kingston MicroSD Cards (Class4):
Owned: 2 (2GB - 4GB)
Broken: 0
- Speed: Avg. 12MB/s (HTC HD2) - Avg. 5-6MB/s (Moto V3x)
A-Data MicroSD Cards (Class6 -- 8GB):
Owned: 2
Broken: 0
- Speed: Avg. 15MB/s (HTC HD2) - Avg. 18MB/s (Moto Milestone)
So I don't think that Sandisk MicroSDs are so much good.
Anyway, I'm planning to buy a 16GB MicroSD card for my Desire Z.. and surely it'll be an AData Class6 card...

Related

A-Data 8GB Class 6 MicroSD 18.95 shipped.

Get it while it's hot:
http://www.meritline.com/adata-8gb-microsdhc-card-class4---p-26412.aspx
8 GB
Class 6 (6 mb/s data transfer rate)
SDHC adapter included
Cheaper than A-Data's own class 4 cards right now. Can't miss it.
oops, nevermind...

will a

will a 16 gb class 2 card work well with our phones and custom roms im currentkey using an 8gb class 6?
a class 2 should be theoreticaly slower than a class 6 that's about it. N1 should work with SDHC cards to 32GB.
Picking a card is a tricky bussiness, speeds are so different. I got a 8GB class 4 one and it works above 5 MB/s transfer rate so I'm happy.. the original class 2 card that comes with the phone had up to 3 MB/s.
If you got a chance to test the cards out or find some tests on the internet about the speed, you should definitely read up on it.
I got a Transcend card.

[Q] Which Memory card brand do you Prefer and what class

Guys
Which brand is perfect with no errors for the p500,
Is transcend Ok, without any reported problems???
cuz with transcend i have 2 options:
1) 8GB class 10
flipkart.com/mobiles/memory-cards/itmczcrqjfnkzhmr?pid=acccz4ffp9czdseh[/url]
2) 16GB class 4
flipkart.com/mobiles/memory-cards/itmczcrqpdjzzqy7?pid=acccz4ffdsujg99j
which shall i go for ?
That's actually a nice price for the class 10, but 8 is too little if you listen a bit of music. I just moved to a 16 Class 4, I'd say get a Class 6 is you can find one.
I have that Transcend 8GB and no error in past three months. It takes some time to load apps after boot (I have lots of apps on SD natively without a2sd scripts), but as it's about 5 to 10 seconds it's okay.
Sent from my LG-P500 using XDA App
I went ahead an ordered the 8GB.. sadly the 16GB class 10 is out of stock here
i use 8gb class 6, transcend
My advice for memory is never buy off Ebay, I got mostly defective memory chips ( found out from testing with h2testw ) before I stopped wasting my time and got a 32GB class 10 Lexar. It's a great card and I've had good results from the Lexar brand. (Sandisk is also an excellent choice)
Transcend class 6
DNA 16g class 10
Sent from my LG-P500
Trascend 16 gb class 10 micro sd
i bought it for 1490 and its excelent...
I picked up two kingston 8gb class 10 cards off of kingstons website for $18.99 each (on sale) with free shipping about two weeks ago. They have been just fine.
Works just fine with an Apacer class 4 8gb. It was cheaper than Transcend or Kingston.
Sent from my LG-P500 using XDA App
Same, just using a class 4 Sandisk 8gb card that came with my phone when I bought it off the store. No problem with it (don't find it slow) but my music collection IS starting to fill up the space pretty quick (I blame FLAC) so I'm thinking of a new card.
What does everyone here think? Does an increased in class level make the phone any quicker?
For memory cards and flash drives I never buy anything other than PNY.
adata for me.
Sent from my LG-P500 using XDA App
class 10 all the way, but couldn't afford anything over 4gb
I get Samsung 8Gb class 10 for 8,90€
Who wants one of this???
I've used a Transcend 4GB/Class6 and a Kingston 8GB/Class10 on my Optimus One.
Here are some minor problems i encountered with the Kingston Class10
1. Erratic behavior whenever I create an EXT partition (for Ungaze Data2SD or DT-App2SD purposes)
2. Using Antutu to benchmark the speed, it seems Optimus One tops at speed of 8MBps or Class8. Please confirm if you have a Class10 SD...
i was going to make a topic about this, but this seems like the appropriate thead to post...
i bought a microsd 4 gig class 4 from the source (nexxtech brand) and was screwing up my phone left right and center. i was originally using a 1 gig sd (not sdhc) and works better.
what the hell....
Send fromy P-509 using tapatalk
I'm using Transcend 8 Gb Class 10 card. SD Card write speed is 10 MB/s & read speed is 17 MB/s as per Antutu.
I read somewhere that LG P-500 is not compatible with class 4 & 6 cards for more than 4GB you need class 10 only. It seems to be very weird.
spystranger said:
I'm using Transcend 8 Gb Class 10 card. SD Card write speed is 10 MB/s & read speed is 17 MB/s as per Antutu.
I read somewhere that LG P-500 is not compatible with class 4 & 6 cards for more than 4GB you need class 10 only. It seems to be very weird.
Click to expand...
Click to collapse
thats not true!! i hv an 8gb on my optimus one and it works perfectly!! =P

Upgrade microSDHC from Class 4 to Class 10?

Hi,
currently I'm having an 8 GB microSDHC Class 4 in my Sensation, would there be any noticable performance improvement if I'd get myself a new class 10 (or anything else better than 4) card? I don't really know if my 4 MB/s writing speed and ~20 MB/s reading speed (some sd-tools said) are slowing down my system or not? Where exactly would the "positive" effects be?
Thanks for your help.
If you are rooted, get a higher capacity card like 32GB class 4 or 6 and install sd booster from the market. If you want to get class 10 32GB card, then try PNY 32GB class 10 from newegg. Some people say that PNY is not good but if you look at the reviews it is pretty good. Using sd tools from the market, it has about the same write/read speed as lexar class 10 but cost much less.

SD CARDs dos its realy mether the quaitly?

hallo my friends
i got new gx s4
and now i want to get
memory card... i did go with the safe choice of > ultra sandisk 32gb class 10 speed in 30$ from ebay
but i saw some cards in 64gb class 10 in 30$ like this
http://www.ebay.com/itm/64GB-MicroS...gital_Camera_Memory_Cards&hash=item58a0864d8a
and this one 64g class 10 for 10$
http://www.ebay.com/itm/New-64gb-mi...gital_Camera_Memory_Cards&hash=item232baeadc9
dos its realy metter sandisk and speeds ?? what do u say better to take ?
Well 10bucks for a 64GB card? Hmm bit weird price to me..
The higher the class the better the card as they say.
Just go to a store and ask specific details about it The sellers will give a bit more information..
congratz with your S4
Yes, the higher class is faster, but can our phones utilize faster cards, or Class 6 or 4 is fast enough?
here is the speeds -
Class Minimum performance
Class 2 2 MB/sec
Class 4 4 MB/sec
Class 6 6 MB/sec
Class 10 10 MB/sec
I have 16 gbs class 6 and works fine
I have 8GB class 10 and its working great but class 6 its enough i think

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