Are higher capacity sd cards slower than the lower ones?

[renegadejd]

I had been using a Samsung evo 32gb in my g3 with no issues. I upgraded to the Samsung evo 128gb and now when I play my music, the music drops out a lot. I don't understand. I had a replacement sent to me and it does the same thing. I bought them from Amazon and have ran two different apps to test them. They come back as genuine Samsung cards. The cards are reading @ 41 mbs. So I'm not sure what the deal is. I only have a couple of days before I have to send the card back so I'm trying to find out if the cards are good or not. Thanks.

 

[N4Newbie]

To directly answer your question, SD Card speeds are less dependent on size than on the speed rating (which often directly correlates to cost). See https://www.sdcard.org/developers/overview/speed_class/ for details.

 

[renegadejd]

Which I understand. I'm trying to figure out why my music drops out with the 128 but played perfectly fine with the 32. They are the same card except for their capacity.

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[renegadejd]

Anybody have any ideas? Am I the only one that has encounter this?

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[Klotar]

I had wondered about this myself. Although my storage sizes are less than yours, I seem to have a similar experience.

I had a 16 GB Sandisk (nothing particularly outstanding about it), which worked perfectly fine, but I needed more storage space. So I got a 32 GB card (don't remember if Sandisk or Samsung). Copied all my music over and started experiencing skips and dropouts. Checked genuineness using SDInsight to make sure I didn't have counterfeits; and the card was legit. I then went and bought another 32 GB, this time an industrial grade card used in manufacturing and professional applications made by Delkin (not a popular name like Kingston, Samsung or Sandisk) which was Speed Class 10, UHS Class 3, 50 mb/s write and 99 mb/s read (not the best in 2016 but was impressive in early 2015). The skips were reduced but not entirely gone. Yep, I was a bit miffed but decided to live with it.

That said... I also have a secondary unsubstantiated theory. It SEEMS like the dropouts occur when wifi is connecting or some other radio function is happening. I wonder if the radio chip (which I understand handles wifi, bluetooth and mobile data) causes BT to drop out when wifi is trying to connect or disconnect...?

 

[renegadejd]

That said... I also have a secondary unsubstantiated theory. It SEEMS like the dropouts occur when wifi is connecting or some other radio function is happening. I wonder if the radio chip (which I understand handles wifi, bluetooth and mobile data) causes BT to drop out when wifi is trying to connect or disconnect...?

If that were the case, it wouldn't matter what card we used.

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[renegadejd]

I had wondered about this myself. Although my storage sizes are less than yours, I seem to have a similar experience.

I had a 16 GB Sandisk (nothing particularly outstanding about it), which worked perfectly fine, but I needed more storage space. So I got a 32 GB card (don't remember if Sandisk or Samsung). Copied all my music over and started experiencing skips and dropouts. Checked genuineness using SDInsight to make sure I didn't have counterfeits; and the card was legit. I then went and bought another 32 GB, this time an industrial grade card used in manufacturing and professional applications made by Delkin (not a popular name like Kingston, Samsung or Sandisk) which was Speed Class 10, UHS Class 3, 50 mb/s write and 99 mb/s read (not the best in 2016 but was impressive in early 2015). The skips were reduced but not entirely gone. Yep, I was a bit miffed but decided to live with it.

That said... I also have a secondary unsubstantiated theory. It SEEMS like the dropouts occur when wifi is connecting or some other radio function is happening. I wonder if the radio chip (which I understand handles wifi, bluetooth and mobile data) causes BT to drop out when wifi is trying to connect or disconnect...?

Another forum asked if my old card and new card were exfat or fat32.

I checked and sure enough, my old card was fat32 and the new one was exfat.

I backed up my new card, formatted it to fat32 and it certainly helped. It still drops out some,but not as much as before. I'd say it's reduced the dropouts by 1/2 to 1/4.

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