duminică, 1 februarie 2015

USB 3.1 shows big gains over USB 3.0, early tests indicate

USB 3.1 was a hot topic at CES this year, with multiple vendors talking up the standard’s performance and new, reversible connector. Shipping hardware is still some months away, but early performance data is looking solid — particularly given that third-party controllers tend to improve over time.
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.

USB 3.1 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

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