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micro sd card difference.

N

nexgenasian

Member
My EVO V 4G is the plum with the Sprint logo, best buy exclusive. It came with an 8 gig class 4 sandisk.

Results were
Sequential Read : 20.706 MB/s
Sequential Write : 6.452 MB/s
Random Read 512KB : 20.091 MB/s
Random Write 512KB : 1.486 MB/s
Random Read 4KB (QD=1) : 3.527 MB/s [ 861.1 IOPS]
Random Write 4KB (QD=1) : 0.465 MB/s [ 113.6 IOPS]
Random Read 4KB (QD=32) : 3.635 MB/s [ 887.4 IOPS]
Random Write 4KB (QD=32) : 0.571 MB/s [ 139.5 IOPS]

Pretty decent for a class 4 I thought, could almost qualify for class 6.

My wife has an EVO V 4G that's black and has a Virgin logo, with a Kingston class 4 8 gig micro sd. Results


Sequential Read : 17.849 MB/s
Sequential Write : 4.407 MB/s
Random Read 512KB : 17.193 MB/s
Random Write 512KB : 0.593 MB/s
Random Read 4KB (QD=1) : 2.476 MB/s [ 604.5 IOPS]
Random Write 4KB (QD=1) : 0.006 MB/s [ 1.4 IOPS]
Random Read 4KB (QD=32) : 2.664 MB/s [ 650.4 IOPS]
Random Write 4KB (QD=32) : 0.011 MB/s [ 2.7 IOPS]

Ouch! The Kingston is way slower then the Sandisk. My suggestion is to anyone with a Kingston micro sd to do a crystal disk test on it and see if it's that bad. Especially those random IOPS (that's useful for those who store games on SD) Put together $10 and buy yourself a better micro sd card. I know I did for my wife.
 
If I were to go through the trouble of buying a micro sd upgrade instead of spending $10 go for the gold and get a 32 GB class 10 for $ 25 or so. That's what my G-Skill cost me a few months ago from NewEgg.
 
I'm just saying, $10 isn't hard to part with for a class 10 8 gig... if people or so strapped for cash. $25?? that's almost 1 month of phone service on virgin man ^_^
 
OverByter said:
...get a 32 GB class 10 for $ 25 or so. That's what my G-Skill cost me a few months ago from NewEgg.
Click to expand...

I bought the same card and I am really happy with it. The card I received was labelled "G-Skill" but was manufactured by Samsung. I ran a benchmark and the speed was right where it is supposed to be.

Things load to/from my SD card more quickly and the extra space is great.

The newegg description is:

G.Skill 32GB Micro SDHC Flash Card w/ SD Adapter Model FF-TSDG32GA-C10
 
SanDisk is known to make quality cards that outperform their class rating. I personally will only buy SanDisk sd cards because you never know what you are getting with other brands.
 
Rolo42 said:
I wondered if the 64GB cards would work in our phones; which one did you get?
Click to expand...

64 gb micro sd cards usually work 99% of the time in devices that accept 32 gb, it's when you get into UHS-1 that you might start seeing compatibility issues. I've used my brothers SanDisk 64 gb UHS - 1 on our phone without issues. Just wish I could afford one myself though. :-(
 
OverByter said:
64 gb micro sd cards usually work 99% of the time in devices that accept 32 gb, it's when you get into UHS-1 that you might start seeing compatibility issues. I've used my brothers SanDisk 64 gb UHS - 1 on our phone without issues. Just wish I could afford one myself though. :-(
Click to expand...


I got the SanDisk class 10. It's red and gray. What I did was I put it into the computer via a usb card reader and formatted it to far32. Works perfectly.
 
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