According to AMD, its driver supports desktop GPUs from AMD Radeon HD 7700 series, and can be installed on 64-bit Windows 7 and 64-bit Windows 10 systems.
New AMD driver aims to improve digital currency mining, with users already satisfied with its improved performance in Ethereum mining.
Here the official release notes:
http://support.amd.com/en-us/kb-articles/Pages/Radeon-Software-Crimson-ReLive-Edition-Beta-for-Blockchain-Compute-Release-Notes.aspx