What speeds should I be getting?
I bought a sandisk 16gb off Ebay. Figured it was safe being "sandisk" and all.
I am getting about:
6mb/s write
19mb/s read
Saw someone pose they got 3 write and 130 read...
can this also be ROM related? They were on magnolia I am on CM7.
It sounds like a reasonable number, I have an older SD card that writes at about 3.5mB/s.
Sounds like a standard Class 2 memory card. Check your uSD card, does it have a little number inside of a circle? If it doesn't it's more than likely a class 2 card.
They categorize most flash-based memory cards by "class" now, the higher the class, the faster the read/write speeds. They have them in multiples of 2's. I have a class 6 8GB microSD from Transcend that I use for my Nook Color and I get on average around 11.5MB/s write speed.
Definitely atleast a class 4. Class 4 is 4Mb/s read speed. The write speed is irrelevant.
I have a class 4 Sandisk as well and it reads at just over 6Mb/s. Not sure on write speed. It was definitely faster than 19Mb/s though. Did you test it using h2test to make sure its a legit card?
Related
OK, 7dayshop are selling the following for £38.99 in the UK
Micro SD High Capacity (MICROSD-HC) Memory Card - 16GB Class 4 (118x) - Dane-Elec
Will it make any difference to the X1 if its a class 2 card or a class 4 card?
The classes defines the writingspeed of a memory card. A class 2 Card can write 2 MB, class 4 4MB/second. The real writing speed is much different. My 16GB Memorycard (Class2) is much faster than my 8GB Card (Class 4).
cemetry
cemetry said:
The classes defines the writingspeed of a memory card. A class 2 Card can write 2 MB, class 4 4MB/second. The real writing speed is much different. My 16GB Memorycard (Class2) is much faster than my 8GB Card (Class 4).
cemetry
Click to expand...
Click to collapse
Yeah that true i have reliaze that after i have already buy a dan-elec MicroSd of 4Gb and it is slower in writing than my old one MicroSD 8Gb Sandisk (OEM with my xperia)...
So i recommend you to buy a MicroSD Sandisk this brand is faster and more quality...
And if sonyericsson choose it..Is for something isn' t it?
Also Kingston are good but Dan-Elec or Duracell (Are the same)
Are the worst i think....
Very slow.............
brand makes a difference.
I have a 16G sandisk class 2, althoguh I did not do any benchmarking, it doesnt feel any slower than my previous 8G sandisk class 4 card.
You won't see a difference if you don't do continuous photo shooting or copy big files from your desktop to your card anyway. I say for the purpose of the card (i.e. used in mobile devices) a class 2 is sufficient but I would still recommend getting from reliable brand like sandisk.
I wasn't sure if this belongs in Q&A or in Accessories, so if it's wrong, please move.
I've been reading that a lot of other phones can't make use of a MicroSD card with higher than a Class 6 speeds.
Even if they have a Class 10 Micro SD card, it will only perform at Class 6 speeds.
But writing from computer to MicroSD card (in the phone) can reach Class 10 speeds.
I don't want to spend the extra money on a class 10 card, when it's only going to run at class 6 speeds.
Has anyone been able to find (for certain) that the Evo can make use of any class speeds above 6?
Thanks!
I really hate to bump my own thread, but...
Htc replied to my email.
They say the evo is only capable of reading at class 2 speeds even with a class 10.
Can anyone clear this up for me?
Thanks again.
My Evo made me Swype this from the XDA App.
I am in the same boat as you. I've been searching for an answer on many forums and have found many posts that indicate HTC support representatives testing the EVO up to a class 4 with success. . .
I've also read that people have major problems with 32GB cards.
I have done some personal testing with my EVO and Windows 7 ; assuming the Win7 file transfer screen are close to reliable....cough. I also have USB debugging enabled on the EVO.
Transferring 700MB file:
EVO Samsung class 2, 8GB card ~ 4.64MB/sec (write to card)
Adata class 6, 4GB card ~ 11.8MB/sec (write to card)
I don't have a class 4 card to test with.
Download SD Card Speed Test. My 16gb class 6 checks out as a class 6, and it all runs within the phone.
The only way to find out about class 10 is to have someone with a class 10 card run the test.
Yes the Evo can only as they said, Read at Class 2, however the big thing we are looking for are Write speeds. Which is why we use a higher class. I am using the Wintec 16gb Class 10 card, and i get 9mb/s write speeds to it. And it is also cheap, got mine for 29.99 from the egg.
My 16 gb PNY class 2 card was getting too small so I decided it was time to upgrade. As far as I could tell the Vibrant doesn't actually support UHS cards, but since I'm only a couple months away I just got one anyway.
I tested the cards with CrystalDiskMark in two ways, via USB in the phone, and in my laptop with an older SD2.0 card reader. The only Android app I could find that did anything other than sequential reads was AndroBench, and I couldn't get it to point at the external card. I'm on ICS, not sure if that was complicating the issue. If anyone knows of an app that does random r/w operations, let me know.
Sorry for the PNY/AData confusion in the screenshots, the UHS-1 card is AData and the Class 2 card is PNY.
Let me say I came from the OG EVO. I bought a 32GB class 10 sdhc card and with that phone write speeds were horrendous! I barely got 7MB/s.. read however was in the low 20MB/s range. I reformatted that same card for use in my new SGS3 16GB. I am now getting 9-10MB/s write and about the same read. Finally a phone that actually makes use of these faster sd cards!
I have the SM-T210RZWYXAR version of the Samsung Galaxy Tab 3 7.0 and I have 2 questions.
1) What is the max amount of storage that can be used? On one site is says 32GB on another it says 64GB
2) What is the MAX read and write speed of the micro SD card port?
1. SM-T210R supports 64 GB sd cards.
2. Depends on the class of the sd card.
class 2 cards are 2MB/s, standard video recording,
class 4 cards are 4MB/s, Hi-Def (720p-1080p/1080i)
class 6 cards are 6 MB/s, basically the same specs as class 4 but faster.
class 10 cards 10MB/s with full Full 1080p and high speed data bus.
ReeceWyld said:
1. SM-T210R supports 64 GB sd cards.
2. Depends on the class of the sd card.
class 2 cards are 2MB/s, standard video recording,
class 4 cards are 4MB/s, Hi-Def (720p-1080p/1080i)
class 6 cards are 6 MB/s, basically the same specs as class 4 but faster.
class 10 cards 10MB/s with full Full 1080p and high speed data bus.
Click to expand...
Click to collapse
thanks , i am wanting to buy a 64 bit class 10 with 70MBPS speed so thats why i wanted to know this information