Yes your talking 480 Mb/s (thats Megabits not MegaBytes divide the number by 8 to get Bytes) compared to 12 Mb/s. You better believe its faster. Problem is that you are always limited by your bus speed so if your bus speed is only 333 Mb/p then you will never see 480 Mb/s so as JW021979 pointed out it is still faster to use a USB reader to write to it. I have no idea what the bus speed is on the Bold.
Anyone have a clue???