Here is a list of pages covering hardware specific details:

RadeonArchitecture
Posted Sun 14 Apr 2013 12:40:52 AM PDT

DRI Wiki
Posted Sat 13 Apr 2013 04:16:50 PM PDT

Development
Posted Sat 13 Apr 2013 04:15:48 PM PDT

HardwareWithoutMipmaps
Posted Sat 13 Apr 2013 04:15:48 PM PDT