Windows 8 is the latest operating system introduced by Microsoft later in 2012. Although you can still find Windows 8 phones but with the passage of time, there will be many smartphones running on Windows 8 in near future. The success of the smartphone will depend on what apps and games it supports. In order to develop apps and games for Windows Phone 8 and Windows Phone 7.5 Software Development Kit (SDK) 8.0 will provide developers with all necessary tools.
The Windows Phone SDK 8.0 supports systems running on Windows 8 Pro & Windows RT with Windows 8 64-bit (x64) client versions. Other system requirements are as under:
1. 6.5 GB of free hard disk space
2. 4 GB RAM
3. 64-bit (x64) CPU
You can download the Windows Phone Software Development Kit (SDK) 8.0 from here for free.