Anandtech has teamed up with MSI and Asmedia to benchmark USB 3.1 and compare it against third-party solutions from VIA as well as Intel’s own native solution. The results vary, but many metrics are quite impressive — particularly comparing random read performance at queue depth 32 between the USB 3.1 Asmedia and native Intel USB 3.0 performance.
Even compared to the VIA controller, which does quite well here, USB 3.1 is 27% faster. Compared to Intel, it’s 1.7 times faster. In real-world file copy tests, the Asmedia USB 3.1 controller completes the work in 75% of the time it takes the Intel integrated USB 3.0 controller and half the time of the VIA solution. Intel has demonstrated solutions capable of up to 800MB/s in RAID connected via USB 3.1; Anandtech’s early hardware hit 650-700MB/s in analogous testing. Generally speaking, Intel’s controllers tend to outperform third party controllers for a given standard, but they also tend to ship later — and it’s not clear when Intel will add USB 3.1.
Source:
http://www.extremetech.com/computing/198483-usb-3-1-shows-big-gains-over-usb-3-0-early-tests-show