It’s been a long time coming and AMD is pretty much ready to step away from the first generation graphics architecture that set them on their current course. Graphics Core Next debuted with the launch of the Radeon HD7970 on 9 January 2012. It morphed into the HD7970 GHz edition before being cut down slightly and re-sold as the Radeon R9 280X. This is the first time that a GPU from AMD has lasted this long and it’s high time that a fresh set of hardware is launched. The next step on the way to GCN 2.0 is the R9 285 belonging to the Tonga GPU family and according to recent rumors and leaks, it’s going to be quite unlike the Tahiti-based R9 280/280X we’re normally used to.