Speed Boost With Third Generation USB (USB 3.0)

November 20th, 2008 | 5 Comments | Posted in Internet

After 3 years effort, Intel finally released USB 3.0 Controller Interface Spec aka xHCI (Extensible Host Controller Interface).

From USB 1.1 with maximum transfer rate of 12Mbits/second to USB 2.0 with maximum transfer rate of 40 Mbits/second. Now USB 3.0 has break the gigabit mark with 4.8Gbit/second. Even faster than firewire 3.2Gbit/s.

USB 1.1	12 Mbits/second
USB 2.0	40 Mbits/second
USB 3.0	4.8 Gbits/second

The performance compare with USB1.0, 2.0 and 3.0 has been demo by WinHEC

Comparison sample for data transfer of 25GB HD movie:

USB 1.0: 9.3 hours

USB 2.0: 13.9 minutes

USB 3.0: 70 seconds

It’s fascinating, you can now transfer Gigabyte files within a few seconds ..

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