Well, of course, if I have a card that has been TESTED and its throughput rate calculated, and find it to be well above the Treo's ability to handle, I'd gladly buy it, independly of what is written (Class 2, 4 or 6). But as your post proves, a Class 6 card is the guarantee that the card operates at a minimum throughput. 5.7 Mb on a "casual" test like theirs can be interpreted as Class 6 (minimum, true) IMHO. It's, I believe, well above the Treo's capability to handle SD data transfer, so in this card the card has no slowdown effect at all, just the "internals" (PalmOS VFS system).
[ ] s Sandro Campos Mancini ----- Original Message ----- From: <[EMAIL PROTECTED]> To: <[email protected]> Sent: Friday, February 23, 2007 8:22 PM Subject: Re: [Treo] Re: SDHC speed test > I'm very put off by the results of that test on the ExtremeTech website. I > mean the class 6 SanDisk didn't even deliver the "guaranteed" 6MB/s only > 5.7 if my math is right (for once in this forum). > > And here you've got a class 2 (Kingston) performing virtually as well as > the best class 6 which is 11.7MB/s that'd be almost a class 12. > > I'm beginning to think "class" in regards to SDHC cards is just a branding > "shell" to charge more for less. > > Maybe its just flash memory. I'm used to HD specs. They are relatively > predictable. For example SCSI 1, 2, 3, ultra-160 or ultra-320. With those > standards you can expect the same results. Same with ATA versus SATA. > > Is something effecting the results that has not been considered? Could the > type of PC flash reader/writer could effect performance? Anyone have any > light on what is skewing the performance so much? > > As far as buying an 8GB class 4 or 6 card, what is to say they would > follow similar results as the 4GB cards in relation to the brands.
