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Old 07-31-2008, 07:01 PM   #1 (permalink)
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Default Class 4 memory vs Class 6

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does this make a big difference in how fast our blackberrys read the info off the card or do they read slower than most memory cards can transfer data?

Thanks,

Chris

P.s. thanks jsanders for answering my question in the other memory thread.
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Old 07-31-2008, 07:07 PM   #2 (permalink)
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Yes, if you can notice the difference...

From wiki: Secure Digital card - Wikipedia, the free encyclopedia

Quote:
SDHC cards have SD Speed Class Ratings defined by the SD Association. The SD Speed Class Ratings specify the following minimum write speeds based on "the best fragmented state where no memory unit is occupied":[18]

* Class 2: 2 MB/s
* Class 4: 4 MB/s
* Class 6: 6 MB/s

SDHC cards will often also advertise a maximum speed (such as 133x or 150x) in addition to this minimum Speed Class Rating. See section Speeds above for a further explanation. One critical difference between the Speed Class the maximum speed ratings is the ability of the host device to query the SD card for the speed class and determine the best location to store data that meets the performance required. "Maximum speed" ratings are quoted by the manufacturers but unverified by any independent evaluation process.
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Old 07-31-2008, 10:20 PM   #3 (permalink)
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So, does anyone know what is the maximum transfer rate of the BB?

If someone came up with a MicroSD card that had a transfer rate of 100 MB/s, would the BB be able to do it?

--Ariel
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Old 08-01-2008, 03:51 AM   #4 (permalink)
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Class 6 is DV speed... If you're gonna use your Curve as a vid cam, then yes, class 6 makes a difference.

Max transfer rate? Probably 60MB/s (USB 2.0 speeds)...
Now we just need an sdhc that'll go that fast...

Cheers!
Myk
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Old 08-01-2008, 08:22 AM   #5 (permalink)
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all the 8gb are class 4 and the 4gb i have already is class 6. i dont think the video camera uses over a half meg a second does anyone know how fast the blackberry writes and reads the card.
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Old 08-01-2008, 08:28 AM   #6 (permalink)
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heres another thing i just took a 20 sec. video on the best quality the phone has and it was only a 1mb. so all it has to write is .05 megabytes a second to do video.
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Old 08-01-2008, 09:39 PM   #7 (permalink)
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i have a class6 : 8gb mirco SDHC card, got it through a camera guy online, it was $100 bucks, but it is welllllllll worth the money :D

pm me if you want the link
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Old 08-01-2008, 09:51 PM   #8 (permalink)
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Amazon.com: Kingston 8GB SDHC Class 6 Flash Card SD6/8GB: Electronics

Amazon. Kingston 8GB class 6 SDHC card for $31.95.

I like Kingston and feel they are as reliable as SanDisk and frequently, slightly less expensive.
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Old 08-02-2008, 09:37 AM   #9 (permalink)
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Quote:
Originally Posted by carrolldf View Post
Amazon.com: Kingston 8GB SDHC Class 6 Flash Card SD6/8GB: Electronics

Amazon. Kingston 8GB class 6 SDHC card for $31.95.

I like Kingston and feel they are as reliable as SanDisk and frequently, slightly less expensive.
thats not micro thats a standard sd card i dont think anyone makes a class 6 micro in 8gb.
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Old 08-02-2008, 11:11 AM   #10 (permalink)
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Quote:
Originally Posted by Renegade4x4 View Post
thats not micro thats a standard sd card i dont think anyone makes a class 6 micro in 8gb.
Duh. You're right. I thought I had a great find. Glad I didn't order it. Thanks for correcting me. (Faulty search criteria.)
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Old 08-02-2008, 10:41 PM   #11 (permalink)
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i was about to say, wtheck i jsut paid a fortune for mine haha, but yeah its not micro- i know where yall can get a micro SDHC 8gb class 6 card- just pm me if you want the link
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Old 12-02-2008, 09:24 AM   #12 (permalink)
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Go to Transcend dot com...they have a 8g SDHC class 6 MicroSD card. 19.99
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