The Slug Race Part II: storage cards (SD, xD, etc)

vbimport

#1

I thought it’s a good idea to have the storage cards in their own league, especially since they are often handicapped by the card reader used :slight_smile:

Card reader here is a Alcor Micro USB 2.0 card reader which is integrated into my Acer 1810TZ laptop.

First card is a generic 2GB SD card, sold in a drugstore under their “Paradies” brand.


#2

Another gem from a supermarket:
2GB SD from Aldi’s “Traveler” brand. The sticker also states High Speed for whatever reason.



#3

2 GB Verbatim Micro SD with adapter



#4

Now something older:
512 MB Transcend SD 80x rating (equals 80x CD speed :slight_smile: )



#5

And finally, a 256 MB Transcend SD card with “45x” rating.



#6

Now there are two very promising candidates for the “most sluggish device” award of this thread:

  1. Canon 16 MB SD (came with a camera)
  2. Toshiba 16 MB SD (no idea where I have it from)
    Oh, and before you ask: 16 Megabyte is correct for both. :wink:




#7

[QUOTE=mciahel;2556933]Oh, and before you ask: 16 Megabyte is correct for both. ;)[/QUOTE]
I remember several years ago seeing someone with a 2MB SmartMedia card and had their ancient camera connected to the PC with a serial (RS232) lead.

I’ve two AData 16GB Class 6 Turbo SDHC cards, bought roughly one year apart, the newer shown on the left:

The first scan below is of the older card:

To show that not all card readers are the same, the figures pasted on the right is with this same card in a Sweex internal multi-reader. The main differences seem to be block sizes up to 32KB, especially the 16KB block size.

Now for the scan of the newer card:

While the read speeds are pretty much the same as the first card with the same reader, the write speeds are much slower. I didn’t expect this much of a difference, but at least shows something DrageMester mentioned earlier.





#8

[QUOTE=mciahel;2556933]Now there are two very promising candidates for the “most sluggish device” award of this thread[/QUOTE] I think I can beat those in terms of sluggishness with the following CF cards… :cool:

Two CompactFlash cards used in my Psion Series 3a/c PDAs. Both tests performed in a built-in generic multi-card reader in a new pc:

  1. Psion 10 MB CompactFlash made by SanDisk in 1997

  2. Simple Technology 48 MB CompactFlash (unknown year)


#9

[QUOTE=DrageMester;2557293] Two CompactFlash cards used in my Psion Series 3a/c PDAs[/QUOTE] On second thought, the cards were probably used in my Psion Series 5 (not 3a/c).


#10

[QUOTE=DrageMester;2557293]I think I can beat those in terms of sluggishness with the following CF cards… :cool:[/QUOTE]rats! :bigsmile:


#11

Silicon Power 32GB Class 10 SDHC with a Prectec SDXC card reader:

Nice write speed. :slight_smile:

So far I have not managed to find any SD card/reader combination that will read faster than about 21MB/s.



#12

Kingston 4 GB microSDHC




#13

SanDisk 4 GB microSDHC




#14

7DayShop own-brand Professional 16GB Class 10 SDHC using SanDisk MicroMate reader:




#15

Dane-Elec 32GB ProLine 200x Class 10 SDHC:

When it comes to SDHC cards, it seems like the faster the sequential write speed, the slower the 4K write speed.




#16

Cheap is not necessarily slow.
The price of that Sandisk 4GB SDHC card (class 4) was only 5 Euros. Performance is much better than that of USB sticks with the same price tag.



#17

^ That’s pretty impressive for a Class 4 card, quicker write than my 16GB Class 10 card two posts above. :slight_smile:

SanDisk 8GB Class 4 SDHC, bought for ~€8 a week ago:

[B]Edit:[/B] For some reason my PC is cropping the right of screenshots.




#18

:eek: I did not expect this massive difference…

Michael


#19

Medion 8GB SDHC card, Class 6. Bought at Aldi for 8,99 EUR



#20

Kingstone SDHC class 4 4GB