Can I know the minimum system requirements to install Xcode 8 beta please.
At the moment I've got OS X Yosemite version 10.10.5
Xcode 8 beta requires a Mac running macOS El Capitan version 10.11.4 or later. It includes SDKs for iOS 10.0, watchOS 3.0, macOS Sierra version 10.12, and tvOS 10.0.
you can get the more information see apple Documents
for related to your question Hardware is enough , you need to upgrade the Mac OSX ver from
Yosemite version 10.10.5 to
El Capitan version 10.11.4