On paper, USB 2.0 is capable of transfer speeds of up to 480 Mbps while USB 3.0 caps out at 5,000 Mbps. This would suggest that USB 3.0 is at least 10 times than USB 2.0, but we all know these figures are meaningless unless it's backed up by real world tests. - See more at: http://www.buildcomputers.net/usb-2-and-3.html#sthash.7pfrWwq4.dpuf