Source: http://gizmodo.com/#!5791561/amd-chipsets-will-be-the-first-to-support-usb-30
You may've noticed there are many laptops and PCs out there that support USB 3.0 now, but unfortunately both AMD and Intel haven't added support for the latest version in their chipsets before. This is set to change with AMD's A75 and A70M chipsets, which will be the first to be branded "Superspeed USB." Previously, PC builders have had to use third-party controllers if they wanted to include the much-faster USB 3.0. [The Inquirer]