Quote:
Originally Posted by masterz87
That along with better loading of the assets, the ability to use zRAM for caching data in ram since kobo is using bottom-of-the-bucket grade sd cards that are only class 4(from the teardowns I've seen) being able to get the whole thing to just work better.
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From my testing, the class of the card is of little relevance. What is critical is the small block read/write speeds. As an example, years back, I tried a Patriot 32GB class 10 with great large block specs and Crystal DiskMark tested abysmal small block read/write speeds. When reading, it caused noticeably slower operation. We are not writing video at 10MBPS, we are running a Linux OS which uses a lot more small block operations (4K or smaller reads/writes).
You might also want to compare the specs for the SanDisk eMMC in the KA1 to the specs for a class 10 uSD card before getting too enthused about the value of any increase in storage speed. From what I see of the part number (SDIN8) and searching on SanDisk's site, as a minimum, it would beat a class 10 uSD card with a minimum 17MB/s read, 90MB/s write (SDIN8DE1) and quite possibly beat a UHS 3 uSD card with a 30MB/s read, 115MB/s write (SDIN8DE2).