give me a second process the data, but it looks like performance is around similar with both file systems I just got done reformating the sd card and doing a test on it as you specified, give me a moment to process the data.
it does *alot* of rearranging of data in the background. It averages about .5Meg/second to a 4g usb key. That's tens of gigabytes per day. It's probably not good for longevity.